git.delta.rocks / unique-network / refs/commits / fc6e54132883

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// SPDX-License-Identifier: Apache-2.034/* eslint-disable @typescript-eslint/no-var-requires */5/* eslint-disable function-call-argument-newline */6/* eslint-disable no-prototype-builtins */78import {ApiPromise, WsProvider, Keyring} from '@polkadot/api';9import {ApiInterfaceEvents} from '@polkadot/api/types';10import {encodeAddress, decodeAddress, keccakAsHex, evmToAddress, addressToEvm} from '@polkadot/util-crypto';11import {IKeyringPair} from '@polkadot/types/types';12import {IApiListeners, IChainEvent, IChainProperties, ICollectionCreationOptions, ICollectionLimits, ICollectionPermissions, ICrossAccountId, ICrossAccountIdLower, ILogger, INestingPermissions, IProperty, IToken, ITokenPropertyPermission, ITransactionResult, IUniqueHelperLog, TApiAllowedListeners, TEthereumAccount, TSigner, TSubstrateAccount, TUniqueNetworks} from './types';1314const crossAccountIdFromLower = (lowerAddress: ICrossAccountIdLower): ICrossAccountId => {15  const address = {} as ICrossAccountId;16  if(lowerAddress.substrate) address.Substrate = lowerAddress.substrate;17  if(lowerAddress.ethereum) address.Ethereum = lowerAddress.ethereum;18  return address;19};202122const nesting = {23  toChecksumAddress(address: string): string {24    if (typeof address === 'undefined') return '';2526    if(!/^(0x)?[0-9a-f]{40}$/i.test(address)) throw new Error(`Given address "${address}" is not a valid Ethereum address.`);2728    address = address.toLowerCase().replace(/^0x/i,'');29    const addressHash = keccakAsHex(address).replace(/^0x/i,'');30    const checksumAddress = ['0x'];3132    for (let i = 0; i < address.length; i++) {33      // If ith character is 8 to f then make it uppercase34      if (parseInt(addressHash[i], 16) > 7) {35        checksumAddress.push(address[i].toUpperCase());36      } else {37        checksumAddress.push(address[i]);38      }39    }40    return checksumAddress.join('');41  },42  tokenIdToAddress(collectionId: number, tokenId: number) {43    return this.toChecksumAddress(`0xf8238ccfff8ed887463fd5e0${collectionId.toString(16).padStart(8, '0')}${tokenId.toString(16).padStart(8, '0')}`);44  },45};4647class UniqueUtil {48  static transactionStatus = {49    NOT_READY: 'NotReady',50    FAIL: 'Fail',51    SUCCESS: 'Success',52  };5354  static chainLogType = {55    EXTRINSIC: 'extrinsic',56    RPC: 'rpc',57  };5859  static getNestingTokenAddress(collectionId: number, tokenId: number) {60    return nesting.tokenIdToAddress(collectionId, tokenId);61  }6263  static getDefaultLogger(): ILogger {64    return {65      log(msg: any, level = 'INFO') {66        console[level.toLocaleLowerCase() === 'error' ? 'error' : 'log'](...(Array.isArray(msg) ? msg : [msg]));67      },68      level: {69        ERROR: 'ERROR',70        WARNING: 'WARNING',71        INFO: 'INFO',72      },73    };74  }7576  static vec2str(arr: string[] | number[]) {77    return arr.map(x => String.fromCharCode(parseInt(x.toString()))).join('');78  }7980  static str2vec(string: string) {81    if (typeof string !== 'string') return string;82    return Array.from(string).map(x => x.charCodeAt(0));83  }8485  static fromSeed(seed: string, ss58Format = 42) {86    const keyring = new Keyring({type: 'sr25519', ss58Format});87    return keyring.addFromUri(seed);88  }8990  static normalizeSubstrateAddress(address: string, ss58Format = 42) {91    return encodeAddress(decodeAddress(address), ss58Format);92  }9394  static extractCollectionIdFromCreationResult(creationResult: ITransactionResult) {95    if (creationResult.status !== this.transactionStatus.SUCCESS) {96      throw Error('Unable to create collection!');97    }9899    let collectionId = null;100    creationResult.result.events.forEach(({event: {data, method, section}}) => {101      if ((section === 'common') && (method === 'CollectionCreated')) {102        collectionId = parseInt(data[0].toString(), 10);103      }104    });105106    if (collectionId === null) {107      throw Error('No CollectionCreated event was found!');108    }109110    return collectionId;111  }112113  static extractTokensFromCreationResult(creationResult: ITransactionResult) {114    if (creationResult.status !== this.transactionStatus.SUCCESS) {115      throw Error('Unable to create tokens!');116    }117    let success = false;118    const tokens = [] as any;119    creationResult.result.events.forEach(({event: {data, method, section}}) => {120      if (method === 'ExtrinsicSuccess') {121        success = true;122      } else if ((section === 'common') && (method === 'ItemCreated')) {123        tokens.push({124          collectionId: parseInt(data[0].toString(), 10),125          tokenId: parseInt(data[1].toString(), 10),126          owner: data[2].toJSON(),127        });128      }129    });130    return {success, tokens};131  }132133  static extractTokensFromBurnResult(burnResult: ITransactionResult) {134    if (burnResult.status !== this.transactionStatus.SUCCESS) {135      throw Error('Unable to burn tokens!');136    }137    let success = false;138    const tokens = [] as any;139    burnResult.result.events.forEach(({event: {data, method, section}}) => {140      if (method === 'ExtrinsicSuccess') {141        success = true;142      } else if ((section === 'common') && (method === 'ItemDestroyed')) {143        tokens.push({144          collectionId: parseInt(data[0].toString(), 10),145          tokenId: parseInt(data[1].toString(), 10),146          owner: data[2].toJSON(),147        });148      }149    });150    return {success, tokens};151  }152153  static findCollectionInEvents(events: {event: IChainEvent}[], collectionId: number, expectedSection: string, expectedMethod: string) {154    let eventId = null;155    events.forEach(({event: {data, method, section}}) => {156      if ((section === expectedSection) && (method === expectedMethod)) {157        eventId = parseInt(data[0].toString(), 10);158      }159    });160161    if (eventId === null) {162      throw Error(`No ${expectedMethod} event was found!`);163    }164    return eventId === collectionId;165  }166167  static isTokenTransferSuccess(events: {event: IChainEvent}[], collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {168    const normalizeAddress = (address: string | ICrossAccountId) => {169      if(typeof address === 'string') return address;170      const obj = {} as any;171      Object.keys(address).forEach(k => {172        obj[k.toLocaleLowerCase()] = address[k as 'Substrate' | 'Ethereum'];173      });174      if(obj.substrate) return {Substrate: this.normalizeSubstrateAddress(obj.substrate)};175      if(obj.ethereum) return {Ethereum: obj.ethereum.toLocaleLowerCase()};176      return address;177    };178    let transfer = {collectionId: null, tokenId: null, from: null, to: null, amount: 1} as any;179    events.forEach(({event: {data, method, section}}) => {180      if ((section === 'common') && (method === 'Transfer')) {181        const hData = (data as any).toJSON();182        transfer = {183          collectionId: hData[0],184          tokenId: hData[1],185          from: normalizeAddress(hData[2]),186          to: normalizeAddress(hData[3]),187          amount: BigInt(hData[4]),188        };189      }190    });191    let isSuccess = parseInt(collectionId.toString()) === transfer.collectionId && parseInt(tokenId.toString()) === transfer.tokenId;192    isSuccess = isSuccess && JSON.stringify(normalizeAddress(fromAddressObj)) === JSON.stringify(transfer.from);193    isSuccess = isSuccess && JSON.stringify(normalizeAddress(toAddressObj)) === JSON.stringify(transfer.to);194    isSuccess = isSuccess && amount === transfer.amount;195    return isSuccess;196  }197}198199200class ChainHelperBase {201  transactionStatus = UniqueUtil.transactionStatus;202  chainLogType = UniqueUtil.chainLogType;203  util: typeof UniqueUtil;204  logger: ILogger;205  api: ApiPromise | null;206  forcedNetwork: TUniqueNetworks | null;207  network: TUniqueNetworks | null;208  chainLog: IUniqueHelperLog[];209210  constructor(logger?: ILogger) {211    this.util = UniqueUtil;212    if (typeof logger == 'undefined') logger = this.util.getDefaultLogger();213    this.logger = logger;214    this.api = null;215    this.forcedNetwork = null;216    this.network = null;217    this.chainLog = [];218  }219220  clearChainLog(): void {221    this.chainLog = [];222  }223224  forceNetwork(value: TUniqueNetworks): void {225    this.forcedNetwork = value;226  }227228  async connect(wsEndpoint: string, listeners?: IApiListeners) {229    if (this.api !== null) throw Error('Already connected');230    const {api, network} = await ChainHelperBase.createConnection(wsEndpoint, listeners, this.forcedNetwork);231    this.api = api;232    this.network = network;233  }234235  async disconnect() {236    if (this.api === null) return;237    await this.api.disconnect();238    this.api = null;239    this.network = null;240  }241242  static async detectNetwork(api: ApiPromise): Promise<TUniqueNetworks> {243    const spec = (await api.query.system.lastRuntimeUpgrade()).toJSON() as any;244    if(['quartz', 'unique'].indexOf(spec.specName) > -1) return spec.specName;245    return 'opal';246  }247248  static async detectNetworkByWsEndpoint(wsEndpoint: string): Promise<TUniqueNetworks> {249    const api = new ApiPromise({provider: new WsProvider(wsEndpoint)});250    await api.isReady;251252    const network = await this.detectNetwork(api);253254    await api.disconnect();255256    return network;257  }258259  static async createConnection(wsEndpoint: string, listeners?: IApiListeners, network?: TUniqueNetworks | null): Promise<{ 260    api: ApiPromise; 261    network: TUniqueNetworks; 262  }> {263    if(typeof network === 'undefined' || network === null) network = 'opal';264    const supportedRPC = {265      opal: {266        unique: require('@unique-nft/opal-testnet-types/definitions').unique.rpc,267      },268      quartz: {269        unique: require('@unique-nft/quartz-mainnet-types/definitions').unique.rpc,270      },271      unique: {272        unique: require('@unique-nft/unique-mainnet-types/definitions').unique.rpc,273      },274    };275    if(!supportedRPC.hasOwnProperty(network)) network = await this.detectNetworkByWsEndpoint(wsEndpoint);276    const rpc = supportedRPC[network];277278    // TODO: investigate how to replace rpc in runtime279    // api._rpcCore.addUserInterfaces(rpc);280281    const api = new ApiPromise({provider: new WsProvider(wsEndpoint), rpc});282283    await api.isReadyOrError;284285    if (typeof listeners === 'undefined') listeners = {};286    for (const event of ['connected', 'disconnected', 'error', 'ready', 'decorated']) {287      if (!listeners.hasOwnProperty(event) || typeof listeners[event as TApiAllowedListeners] === 'undefined') continue;288      api.on(event as ApiInterfaceEvents, listeners[event as TApiAllowedListeners] as (...args: any[]) => any);289    }290291    return {api, network};292  }293294  getTransactionStatus(data: {events: {event: IChainEvent}[], status: any}) {295    const {events, status} = data;296    if (status.isReady) {297      return this.transactionStatus.NOT_READY;298    }299    if (status.isBroadcast) {300      return this.transactionStatus.NOT_READY;301    }302    if (status.isInBlock || status.isFinalized) {303      const errors = events.filter(e => e.event.data.method === 'ExtrinsicFailed');304      if (errors.length > 0) {305        return this.transactionStatus.FAIL;306      }307      if (events.filter(e => e.event.data.method === 'ExtrinsicSuccess').length > 0) {308        return this.transactionStatus.SUCCESS;309      }310    }311312    return this.transactionStatus.FAIL;313  }314315  signTransaction(sender: TSigner, transaction: any, label = 'transaction', options: any = null) {316    const sign = (callback: any) => {317      if(options !== null) return transaction.signAndSend(sender, options, callback);318      return transaction.signAndSend(sender, callback);319    };320    return new Promise(async (resolve, reject) => {321      try {322        const unsub = await sign((result: any) => {323          const status = this.getTransactionStatus(result);324325          if (status === this.transactionStatus.SUCCESS) {326            this.logger.log(`${label} successful`);327            unsub();328            resolve({result, status});329          } else if (status === this.transactionStatus.FAIL) {330            let moduleError = null;331332            if (result.hasOwnProperty('dispatchError')) {333              const dispatchError = result['dispatchError'];334335              if (dispatchError && dispatchError.isModule) {336                const modErr = dispatchError.asModule;337                const errorMeta = dispatchError.registry.findMetaError(modErr);338339                moduleError = `${errorMeta.section}.${errorMeta.name}`;340              }341              else {342                this.logger.log(result, this.logger.level.ERROR);343              }344            }345346            this.logger.log(`Something went wrong with ${label}. Status: ${status}`, this.logger.level.ERROR);347            unsub();348            reject({status, moduleError, result});349          }350        });351      } catch (e) {352        this.logger.log(e, this.logger.level.ERROR);353        reject(e);354      }355    });356  }357358  constructApiCall(apiCall: string, params: any[]) {359    if(!apiCall.startsWith('api.')) throw Error(`Invalid api call: ${apiCall}`);360    let call = this.api as any;361    for(const part of apiCall.slice(4).split('.')) {362      call = call[part];363    }364    return call(...params);365  }366367  async executeExtrinsic(sender: TSigner, extrinsic: string, params: any[], expectSuccess=false/*, failureMessage='expected success'*/) {368    if(this.api === null) throw Error('API not initialized');369    if(!extrinsic.startsWith('api.tx.')) throw Error(`${extrinsic} is not transaction`);370371    const startTime = (new Date()).getTime();372    let result: ITransactionResult;373    let events = [];374    try {375      result = await this.signTransaction(sender, this.constructApiCall(extrinsic, params), extrinsic) as ITransactionResult;376      events = result.result.events.map((x: any) => x.toHuman());377    }378    catch(e) {379      if(!(e as object).hasOwnProperty('status')) throw e;380      result = e as ITransactionResult;381    }382383    const endTime = (new Date()).getTime();384385    const log = {386      executedAt: endTime,387      executionTime: endTime - startTime,388      type: this.chainLogType.EXTRINSIC,389      status: result.status,390      call: extrinsic,391      params,392    } as IUniqueHelperLog;393394    if(result.status !== this.transactionStatus.SUCCESS && result.moduleError) log.moduleError = result.moduleError;395    if(events.length > 0) log.events = events;396397    this.chainLog.push(log);398399    if(expectSuccess && result.status !== this.transactionStatus.SUCCESS) throw Error(`${result.moduleError}`);400    return result;401  }402403  async callRpc(rpc: string, params?: any[]) {404    if(typeof params === 'undefined') params = [];405    if(this.api === null) throw Error('API not initialized');406    if(!rpc.startsWith('api.rpc.') && !rpc.startsWith('api.query.')) throw Error(`${rpc} is not RPC call`);407408    const startTime = (new Date()).getTime();409    let result;410    let error = null;411    const log = {412      type: this.chainLogType.RPC,413      call: rpc,414      params,415    } as IUniqueHelperLog;416417    try {418      result = await this.constructApiCall(rpc, params);419    }420    catch(e) {421      error = e;422    }423424    const endTime = (new Date()).getTime();425426    log.executedAt = endTime;427    log.status = (error === null ? this.transactionStatus.SUCCESS : this.transactionStatus.FAIL) as 'Fail' | 'Success';428    log.executionTime = endTime - startTime;429430    this.chainLog.push(log);431432    if(error !== null) throw error;433434    return result;435  }436437  getSignerAddress(signer: IKeyringPair | string): string {438    if(typeof signer === 'string') return signer;439    return signer.address;440  }441}442443444class HelperGroup {445  helper: UniqueHelper;446447  constructor(uniqueHelper: UniqueHelper) {448    this.helper = uniqueHelper;449  }450}451452453class CollectionGroup extends HelperGroup {454  /**455 * Get number of blocks when sponsored transaction is available.456 *457 * @param collectionId ID of collection458 * @param tokenId ID of token459 * @param addressObj address for which the sponsorship is checked460 * @example await getTokenNextSponsored(1, 2, {Substrate: '5DfhbVfww7ThF8q6f3...'});461 * @returns number of blocks or null if sponsorship hasn't been set462 */463  async getTokenNextSponsored(collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<number | null> {464    return (await this.helper.callRpc('api.rpc.unique.nextSponsored', [collectionId, addressObj, tokenId])).toJSON();465  }466467  /**468   * Get the number of created collections.469   * 470   * @returns number of created collections471   */472  async getTotalCount(): Promise<number> {473    return (await this.helper.callRpc('api.rpc.unique.collectionStats')).created.toNumber();474  }475476  /**477   * Get information about the collection with additional data, including the number of tokens it contains, its administrators, the normalized address of the collection's owner, and decoded name and description.478   * 479   * @param collectionId ID of collection480   * @example await getData(2)481   * @returns collection information object482   */483  async getData(collectionId: number): Promise<{484    id: number;485    name: string;486    description: string;487    tokensCount: number;488    admins: ICrossAccountId[];489    normalizedOwner: TSubstrateAccount;490    raw: any491  } | null> {492    const collection = await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId]);493    const humanCollection = collection.toHuman(), collectionData = {494      id: collectionId, name: null, description: null, tokensCount: 0, admins: [],495      raw: humanCollection,496    } as any, jsonCollection = collection.toJSON();497    if (humanCollection === null) return null;498    collectionData.raw.limits = jsonCollection.limits;499    collectionData.raw.permissions = jsonCollection.permissions;500    collectionData.normalizedOwner = this.helper.address.normalizeSubstrate(collectionData.raw.owner);501    for (const key of ['name', 'description']) {502      collectionData[key] = this.helper.util.vec2str(humanCollection[key]);503    }504505    collectionData.tokensCount = (['RFT', 'NFT'].includes(humanCollection.mode)) ? await this.helper[humanCollection.mode.toLocaleLowerCase() as 'nft' | 'rft'].getLastTokenId(collectionId) : 0;506    collectionData.admins = await this.getAdmins(collectionId);507508    return collectionData;509  }510511  /**512   * Get the normalized addresses of the collection's administrators.513   * 514   * @param collectionId ID of collection515   * @example await getAdmins(1)516   * @returns array of administrators517   */518  async getAdmins(collectionId: number): Promise<ICrossAccountId[]> {519    const normalized = [];520    for(const admin of (await this.helper.callRpc('api.rpc.unique.adminlist', [collectionId])).toHuman()) {521      if(admin.Substrate) normalized.push({Substrate: this.helper.address.normalizeSubstrate(admin.Substrate)});522      else normalized.push(admin);523    }524    return normalized;525  }526527  /**528   * Get the normalized addresses added to the collection allow-list.529   * @param collectionId ID of collection530   * @example await getAllowList(1)531   * @returns array of allow-listed addresses532   */533  async getAllowList(collectionId: number): Promise<ICrossAccountId[]> {534    const normalized = [];535    const allowListed = (await this.helper.callRpc('api.rpc.unique.allowlist', [collectionId])).toHuman();536    for (const address of allowListed) {537      if (address.Substrate) normalized.push({Substrate: this.helper.address.normalizeSubstrate(address.Substrate)});538      else normalized.push(address);539    }540    return normalized;541  }542543  /**544   * Get the effective limits of the collection instead of null for default values545   * 546   * @param collectionId ID of collection547   * @example await getEffectiveLimits(2)548   * @returns object of collection limits549   */550  async getEffectiveLimits(collectionId: number): Promise<ICollectionLimits> {551    return (await this.helper.callRpc('api.rpc.unique.effectiveCollectionLimits', [collectionId])).toJSON();552  }553554  /**555   * Burns the collection if the signer has sufficient permissions and collection is empty.556   * 557   * @param signer keyring of signer558   * @param collectionId ID of collection559   * @example await helper.collection.burn(aliceKeyring, 3);560   * @returns ```true``` if extrinsic success, otherwise ```false```561   */562  async burn(signer: TSigner, collectionId: number): Promise<boolean> {563    const result = await this.helper.executeExtrinsic(564      signer,565      'api.tx.unique.destroyCollection', [collectionId],566      true,567    );568569    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionDestroyed');570  }571572  /**573   * Sets the sponsor for the collection (Requires the Substrate address).574   * 575   * @param signer keyring of signer576   * @param collectionId ID of collection577   * @param sponsorAddress Sponsor substrate address578   * @example setSponsor(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...")579   * @returns ```true``` if extrinsic success, otherwise ```false```580   */581  async setSponsor(signer: TSigner, collectionId: number, sponsorAddress: TSubstrateAccount): Promise<boolean> {582    const result = await this.helper.executeExtrinsic(583      signer,584      'api.tx.unique.setCollectionSponsor', [collectionId, sponsorAddress],585      true,586    );587588    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionSponsorSet');589  }590591  /**592   * Confirms consent to sponsor the collection on behalf of the signer.593   * 594   * @param signer keyring of signer595   * @param collectionId ID of collection596   * @example confirmSponsorship(aliceKeyring, 10)597   * @returns ```true``` if extrinsic success, otherwise ```false```598   */599  async confirmSponsorship(signer: TSigner, collectionId: number): Promise<boolean> {600    const result = await this.helper.executeExtrinsic(601      signer,602      'api.tx.unique.confirmSponsorship', [collectionId],603      true,604    );605606    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'SponsorshipConfirmed');607  }608609  /**610   * Sets the limits of the collection. At least one limit must be specified for a correct call.611   * 612   * @param signer keyring of signer613   * @param collectionId ID of collection614   * @param limits collection limits object615   * @example616   * await setLimits(617   *   aliceKeyring,618   *   10,619   *   {620   *     sponsorTransferTimeout: 0,621   *     ownerCanDestroy: false622   *   }623   * )624   * @returns ```true``` if extrinsic success, otherwise ```false```625   */626  async setLimits(signer: TSigner, collectionId: number, limits: ICollectionLimits): Promise<boolean> {627    const result = await this.helper.executeExtrinsic(628      signer,629      'api.tx.unique.setCollectionLimits', [collectionId, limits],630      true,631    );632633    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionLimitSet');634  }635636  /**637   * Changes the owner of the collection to the new Substrate address.638   * 639   * @param signer keyring of signer640   * @param collectionId ID of collection641   * @param ownerAddress substrate address of new owner642   * @example changeOwner(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...")643   * @returns ```true``` if extrinsic success, otherwise ```false```644   */645  async changeOwner(signer: TSigner, collectionId: number, ownerAddress: TSubstrateAccount): Promise<boolean> {646    const result = await this.helper.executeExtrinsic(647      signer,648      'api.tx.unique.changeCollectionOwner', [collectionId, ownerAddress],649      true,650    );651652    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionOwnedChanged');653  }654655  /**656   * Adds a collection administrator. 657   * 658   * @param signer keyring of signer659   * @param collectionId ID of collection660   * @param adminAddressObj Administrator address (substrate or ethereum)661   * @example addAdmin(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."})662   * @returns ```true``` if extrinsic success, otherwise ```false```663   */664  async addAdmin(signer: TSigner, collectionId: number, adminAddressObj: ICrossAccountId): Promise<boolean> {665    const result = await this.helper.executeExtrinsic(666      signer,667      'api.tx.unique.addCollectionAdmin', [collectionId, adminAddressObj],668      true,669    );670671    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionAdminAdded');672  }673674  /**675   * Removes a collection administrator.676   * 677   * @param signer keyring of signer678   * @param collectionId ID of collection679   * @param adminAddressObj Administrator address (substrate or ethereum)680   * @example removeAdmin(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."})681   * @returns ```true``` if extrinsic success, otherwise ```false```682   */683  async removeAdmin(signer: TSigner, collectionId: number, adminAddressObj: ICrossAccountId): Promise<boolean> {684    const result = await this.helper.executeExtrinsic(685      signer,686      'api.tx.unique.removeCollectionAdmin', [collectionId, adminAddressObj],687      true,688    );689690    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionAdminRemoved');691  }692693  /**694   * Adds an address to allow list 695   * @param signer keyring of signer696   * @param collectionId ID of collection697   * @param addressObj address to add to the allow list698   * @returns ```true``` if extrinsic success, otherwise ```false```699   */700  async addToAllowList(signer: TSigner, collectionId: number, addressObj: ICrossAccountId): Promise<boolean> {701    const result = await this.helper.executeExtrinsic(702      signer,703      'api.tx.unique.addToAllowList', [collectionId, addressObj],704      true,705    );706707    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'AllowListAddressAdded');708  }709710  /**711   * Removes an address from allow list 712   * 713   * @param signer keyring of signer714   * @param collectionId ID of collection715   * @param addressObj address to remove from the allow list716   * @returns ```true``` if extrinsic success, otherwise ```false```717   */718  async removeFromAllowList(signer: TSigner, collectionId: number, addressObj: ICrossAccountId): Promise<boolean> {719    const result = await this.helper.executeExtrinsic(720      signer,721      'api.tx.unique.removeFromAllowList', [collectionId, addressObj],722      true,723    );724725    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'AllowListAddressRemoved');726  }727728  /**729   * Sets onchain permissions for selected collection.730   * 731   * @param signer keyring of signer732   * @param collectionId ID of collection733   * @param permissions collection permissions object734   * @example setPermissions(aliceKeyring, 10, {access:'AllowList', mintMode: true, nesting: {collectionAdmin: true, tokenOwner: true}});735   * @returns ```true``` if extrinsic success, otherwise ```false```736   */737  async setPermissions(signer: TSigner, collectionId: number, permissions: ICollectionPermissions): Promise<boolean> {738    const result = await this.helper.executeExtrinsic(739      signer,740      'api.tx.unique.setCollectionPermissions', [collectionId, permissions],741      true,742    );743744    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionPermissionSet');745  }746747  /**748   * Enables nesting for selected collection. If `restricted` set, you can nest only tokens from specified collections.749   * 750   * @param signer keyring of signer751   * @param collectionId ID of collection752   * @param permissions nesting permissions object753   * @example enableNesting(aliceKeyring, 10, {collectionAdmin: true, tokenOwner: true});754   * @returns ```true``` if extrinsic success, otherwise ```false```755   */756  async enableNesting(signer: TSigner, collectionId: number, permissions: INestingPermissions): Promise<boolean> {757    return await this.setPermissions(signer, collectionId, {nesting: permissions});758  }759760  /**761   * Disables nesting for selected collection.762   * 763   * @param signer keyring of signer764   * @param collectionId ID of collection765   * @example disableNesting(aliceKeyring, 10);766   * @returns ```true``` if extrinsic success, otherwise ```false```767   */768  async disableNesting(signer: TSigner, collectionId: number): Promise<boolean> {769    return await this.setPermissions(signer, collectionId, {nesting: {tokenOwner: false, collectionAdmin: false}});770  }771772  /**773   * Sets onchain properties to the collection.774   * 775   * @param signer keyring of signer776   * @param collectionId ID of collection777   * @param properties array of property objects778   * @example setProperties(aliceKeyring, 10, [{key: "gender", value: "male"}]);779   * @returns ```true``` if extrinsic success, otherwise ```false```780   */781  async setProperties(signer: TSigner, collectionId: number, properties: IProperty[]): Promise<boolean> {782    const result = await this.helper.executeExtrinsic(783      signer,784      'api.tx.unique.setCollectionProperties', [collectionId, properties],785      true,786    );787788    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionPropertySet');789  }790791  /**792   * Deletes onchain properties from the collection.793   * 794   * @param signer keyring of signer795   * @param collectionId ID of collection796   * @param propertyKeys array of property keys to delete797   * @example deleteProperties(aliceKeyring, 10, ["gender", "age"]);798   * @returns ```true``` if extrinsic success, otherwise ```false```799   */800  async deleteProperties(signer: TSigner, collectionId: number, propertyKeys: string[]): Promise<boolean> {801    const result = await this.helper.executeExtrinsic(802      signer,803      'api.tx.unique.deleteCollectionProperties', [collectionId, propertyKeys],804      true,805    );806807    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionPropertyDeleted');808  }809810  /**811   * Changes the owner of the token.812   * 813   * @param signer keyring of signer814   * @param collectionId ID of collection815   * @param tokenId ID of token816   * @param addressObj address of a new owner817   * @param amount amount of tokens to be transfered. For NFT must be set to 1n818   * @example transferToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})819   * @returns true if the token success, otherwise false820   */821  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId, amount=1n): Promise<boolean> {822    const result = await this.helper.executeExtrinsic(823      signer,824      'api.tx.unique.transfer', [addressObj, collectionId, tokenId, amount],825      true, // `Unable to transfer token #${tokenId} from collection #${collectionId}`,826    );827828    return this.helper.util.isTokenTransferSuccess(result.result.events, collectionId, tokenId, {Substrate: typeof signer === 'string' ? signer : signer.address}, addressObj, amount);829  }830831  /**832   * 833   * Change ownership of a token(s) on behalf of the owner. 834   * 835   * @param signer keyring of signer836   * @param collectionId ID of collection837   * @param tokenId ID of token838   * @param fromAddressObj address on behalf of which the token will be sent839   * @param toAddressObj new token owner840   * @param amount amount of tokens to be transfered. For NFT must be set to 1n841   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg"}, {Ethereum: "0x9F0583DbB85..."})842   * @returns true if the token success, otherwise false843   */844  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {845    const result = await this.helper.executeExtrinsic(846      signer,847      'api.tx.unique.transferFrom', [fromAddressObj, toAddressObj, collectionId, tokenId, amount],848      true, // `Unable to transfer token #${tokenId} from collection #${collectionId}`,849    );850    return this.helper.util.isTokenTransferSuccess(result.result.events, collectionId, tokenId, fromAddressObj, toAddressObj, amount);851  }852853  /**854   * 855   * Destroys a concrete instance of NFT/RFT or burns a specified amount of fungible tokens.856   * 857   * @param signer keyring of signer858   * @param collectionId ID of collection859   * @param tokenId ID of token860   * @param amount amount of tokens to be burned. For NFT must be set to 1n861   * @example burnToken(aliceKeyring, 10, 5);862   * @returns ```true``` and burnt token number is extrinsic success. Otherwise ```false``` and ```null```863   */864  async burnToken(signer: TSigner, collectionId: number, tokenId: number, amount=1n): Promise<{865    success: boolean,866    token: number | null867  }> {868    const burnResult = await this.helper.executeExtrinsic(869      signer,870      'api.tx.unique.burnItem', [collectionId, tokenId, amount],871      true, // `Unable to burn token for ${label}`,872    );873    const burnedTokens = this.helper.util.extractTokensFromBurnResult(burnResult);874    if (burnedTokens.tokens.length > 1) throw Error('Burned multiple tokens');875    return {success: burnedTokens.success, token: burnedTokens.tokens.length > 0 ? burnedTokens.tokens[0] : null};876  }877878  /**879   * Destroys a concrete instance of NFT on behalf of the owner880   * 881   * @param signer keyring of signer882   * @param collectionId ID of collection883   * @param fromAddressObj address on behalf of which the token will be burnt884   * @param tokenId ID of token885   * @param amount amount of tokens to be burned. For NFT must be set to 1n886   * @example burnTokenFrom(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."}, 5, {Ethereum: "0x9F0583DbB85..."})887   * @returns ```true``` if extrinsic success, otherwise ```false```888   */889  async burnTokenFrom(signer: TSigner, collectionId: number, fromAddressObj: ICrossAccountId, tokenId: number, amount=1n): Promise<boolean> {890    const burnResult = await this.helper.executeExtrinsic(891      signer,892      'api.tx.unique.burnFrom', [collectionId, fromAddressObj, tokenId, amount],893      true, // `Unable to burn token from for ${label}`,894    );895    const burnedTokens = this.helper.util.extractTokensFromBurnResult(burnResult);896    return burnedTokens.success && burnedTokens.tokens.length > 0;897  }898899  /**900   * Set, change, or remove approved address to transfer the ownership of the NFT.901   * 902   * @param signer keyring of signer903   * @param collectionId ID of collection904   * @param tokenId ID of token905   * @param toAddressObj Substrate or Ethereum address which gets approved use of the signer's tokens906   * @param amount amount of token to be approved. For NFT must be set to 1n907   * @returns ```true``` if extrinsic success, otherwise ```false```908   */909  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {910    const approveResult = await this.helper.executeExtrinsic(911      signer, 912      'api.tx.unique.approve', [toAddressObj, collectionId, tokenId, amount],913      true, // `Unable to approve token for ${label}`,914    );915916    return this.helper.util.findCollectionInEvents(approveResult.result.events, collectionId, 'common', 'Approved');917  }918919  /**920   * Get the amount of token pieces approved to transfer or burn. Normally 0.921   * 922   * @param collectionId ID of collection923   * @param tokenId ID of token924   * @param toAccountObj address which is approved to use token pieces925   * @param fromAccountObj address which may have allowed the use of its owned tokens926   * @example getTokenApprovedPieces(10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Substrate: "5ERZNF88Mm7UGfPP3mdG..."})927   * @returns number of approved to transfer pieces928   */929  async getTokenApprovedPieces(collectionId: number, tokenId: number, toAccountObj: ICrossAccountId, fromAccountObj: ICrossAccountId): Promise<bigint> {930    return (await this.helper.callRpc('api.rpc.unique.allowance', [collectionId, fromAccountObj, toAccountObj, tokenId])).toBigInt();931  }932933  /**934   * Get the last created token ID in a collection935   * 936   * @param collectionId ID of collection937   * @example getLastTokenId(10);938   * @returns id of the last created token939   */940  async getLastTokenId(collectionId: number): Promise<number> {941    return (await this.helper.callRpc('api.rpc.unique.lastTokenId', [collectionId])).toNumber();942  }943944  /**945   * Check if token exists946   * 947   * @param collectionId ID of collection948   * @param tokenId ID of token949   * @example isTokenExists(10, 20);950   * @returns true if the token exists, otherwise false951   */952  async isTokenExists(collectionId: number, tokenId: number): Promise<boolean> {953    return (await this.helper.callRpc('api.rpc.unique.tokenExists', [collectionId, tokenId])).toJSON();954  }955}956957class NFTnRFT extends CollectionGroup {958  /**959   * Get tokens owned by account960   * 961   * @param collectionId ID of collection962   * @param addressObj tokens owner963   * @example getTokensByAddress(10, {Substrate: "5DyN4Y92vZCjv38fg..."})964   * @returns array of token ids owned by account965   */966  async getTokensByAddress(collectionId: number, addressObj: ICrossAccountId): Promise<number[]> {967    return (await this.helper.callRpc('api.rpc.unique.accountTokens', [collectionId, addressObj])).toJSON();968  }969970  /**971   * Get token data972   * 973   * @param collectionId ID of collection974   * @param tokenId ID of token975   * @param propertyKeys optionally filter the token properties to only these keys976   * @param blockHashAt optionally query the data at some block with this hash977   * @example getToken(10, 5);978   * @returns human readable token data 979   */980  async getToken(collectionId: number, tokenId: number, propertyKeys: string[] = [], blockHashAt?: string): Promise<{981    properties: IProperty[];982    owner: ICrossAccountId;983    normalizedOwner: ICrossAccountId;984  }| null> {985    let tokenData;986    if(typeof blockHashAt === 'undefined') {987      tokenData = await this.helper.callRpc('api.rpc.unique.tokenData', [collectionId, tokenId]);988    }989    else {990      if(propertyKeys.length == 0) {991        const collection = (await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId])).toHuman();992        if(!collection) return null;993        propertyKeys = collection.tokenPropertyPermissions.map((x: ITokenPropertyPermission) => x.key);994      }995      tokenData = await this.helper.callRpc('api.rpc.unique.tokenData', [collectionId, tokenId, propertyKeys, blockHashAt]);996    }997    tokenData = tokenData.toHuman();998    if (tokenData === null || tokenData.owner === null) return null;999    const owner = {} as any;1000    for (const key of Object.keys(tokenData.owner)) {1001      owner[key.toLocaleLowerCase()] = key.toLocaleLowerCase() === 'substrate' ? this.helper.address.normalizeSubstrate(tokenData.owner[key]) : tokenData.owner[key];1002    }1003    tokenData.normalizedOwner = crossAccountIdFromLower(owner);1004    return tokenData;1005  }10061007  /**1008   * Set permissions to change token properties1009   * 1010   * @param signer keyring of signer1011   * @param collectionId ID of collection1012   * @param permissions permissions to change a property by the collection owner or admin1013   * @example setTokenPropertyPermissions(1014   *   aliceKeyring, 10, [{key: "gender", permission: {tokenOwner: true, mutable: true, collectionAdmin: true}}]1015   * )1016   * @returns true if extrinsic success otherwise false1017   */1018  async setTokenPropertyPermissions(signer: TSigner, collectionId: number, permissions: ITokenPropertyPermission[]): Promise<boolean> {1019    const result = await this.helper.executeExtrinsic(1020      signer,1021      'api.tx.unique.setTokenPropertyPermissions', [collectionId, permissions],1022      true,1023    );10241025    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'PropertyPermissionSet');1026  }10271028  /**1029   * Set token properties1030   * 1031   * @param signer keyring of signer1032   * @param collectionId ID of collection1033   * @param tokenId ID of token1034   * @param properties key-value pairs of metadata which to add to a token. Keys must be permitted in the collection1035   * @example setTokenProperties(aliceKeyring, 10, 5, [{key: "gender", value: "female"}, {key: "age", value: "23"}])1036   * @returns ```true``` if extrinsic success, otherwise ```false```1037   */1038  async setTokenProperties(signer: TSigner, collectionId: number, tokenId: number, properties: IProperty[]): Promise<boolean> {1039    const result = await this.helper.executeExtrinsic(1040      signer,1041      'api.tx.unique.setTokenProperties', [collectionId, tokenId, properties],1042      true,1043    );10441045    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'TokenPropertySet');1046  }10471048  /**1049   * Delete the provided properties of a token1050   * @param signer keyring of signer1051   * @param collectionId ID of collection1052   * @param tokenId ID of token1053   * @param propertyKeys property keys to be deleted 1054   * @example deleteTokenProperties(aliceKeyring, 10, 5, ["gender", "age"])1055   * @returns ```true``` if extrinsic success, otherwise ```false```1056   */1057  async deleteTokenProperties(signer: TSigner, collectionId: number, tokenId: number, propertyKeys: string[]): Promise<boolean> {1058    const result = await this.helper.executeExtrinsic(1059      signer,1060      'api.tx.unique.deleteTokenProperties', [collectionId, tokenId, propertyKeys],1061      true,1062    );10631064    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'TokenPropertyDeleted');1065  }10661067  /**1068   * Mint new collection1069   * 1070   * @param signer keyring of signer1071   * @param collectionOptions basic collection options and properties 1072   * @param mode NFT or RFT type of a collection1073   * @example mintCollection(aliceKeyring, {name: 'New', description: "New collection", tokenPrefix: "NEW"}, "NFT")1074   * @returns object of the created collection1075   */1076  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions, mode: 'NFT' | 'RFT'): Promise<UniqueCollectionBase> {1077    collectionOptions = JSON.parse(JSON.stringify(collectionOptions)) as ICollectionCreationOptions; // Clone object1078    collectionOptions.mode = (mode === 'NFT') ? {nft: null} : {refungible: null};1079    for (const key of ['name', 'description', 'tokenPrefix']) {1080      if (typeof collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] === 'string') collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] = this.helper.util.str2vec(collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] as string);1081    }1082    const creationResult = await this.helper.executeExtrinsic(1083      signer,1084      'api.tx.unique.createCollectionEx', [collectionOptions],1085      true, // errorLabel,1086    );1087    return this.getCollectionObject(this.helper.util.extractCollectionIdFromCreationResult(creationResult));1088  }10891090  getCollectionObject(collectionId: number): any {1091    return null;1092  }10931094  getTokenObject(collectionId: number, tokenId: number): any {1095    return null;1096  }1097}109810991100class NFTGroup extends NFTnRFT {1101  /**1102   * Get collection object1103   * @param collectionId ID of collection1104   * @example getCollectionObject(2);1105   * @returns instance of UniqueNFTCollection1106   */1107  getCollectionObject(collectionId: number): UniqueNFTCollection {1108    return new UniqueNFTCollection(collectionId, this.helper);1109  }11101111  /**1112   * Get token object1113   * @param collectionId ID of collection1114   * @param tokenId ID of token1115   * @example getTokenObject(10, 5);1116   * @returns instance of UniqueNFTToken1117   */1118  getTokenObject(collectionId: number, tokenId: number): UniqueNFTToken {1119    return new UniqueNFTToken(tokenId, this.getCollectionObject(collectionId));1120  }11211122  /**1123   * Get token's owner1124   * @param collectionId ID of collection1125   * @param tokenId ID of token1126   * @param blockHashAt optionally query the data at the block with this hash1127   * @example getTokenOwner(10, 5);1128   * @returns Address in CrossAccountId format, e.g. {Substrate: "5DnSF6RRjwteE3BrCj..."}1129   */1130  async getTokenOwner(collectionId: number, tokenId: number, blockHashAt?: string): Promise<ICrossAccountId> {1131    let owner;1132    if (typeof blockHashAt === 'undefined') {1133      owner = await this.helper.callRpc('api.rpc.unique.tokenOwner', [collectionId, tokenId]);1134    } else {1135      owner = await this.helper.callRpc('api.rpc.unique.tokenOwner', [collectionId, tokenId, blockHashAt]);1136    }1137    return crossAccountIdFromLower(owner.toJSON());1138  }11391140  /**1141   * Is token approved to transfer1142   * @param collectionId ID of collection1143   * @param tokenId ID of token1144   * @param toAccountObj address to be approved1145   * @returns ```true``` if extrinsic success, otherwise ```false```1146   */1147  async isTokenApproved(collectionId: number, tokenId: number, toAccountObj: ICrossAccountId): Promise<boolean> {1148    return (await this.getTokenApprovedPieces(collectionId, tokenId, toAccountObj, await this.getTokenOwner(collectionId, tokenId))) === 1n;1149  }11501151  /**1152   * Changes the owner of the token.1153   * 1154   * @param signer keyring of signer1155   * @param collectionId ID of collection1156   * @param tokenId ID of token1157   * @param addressObj address of a new owner1158   * @example transferToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1159   * @returns ```true``` if extrinsic success, otherwise ```false```1160   */1161  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<boolean> {1162    return await super.transferToken(signer, collectionId, tokenId, addressObj, 1n);1163  }11641165  /**1166   * 1167   * Change ownership of a NFT on behalf of the owner. 1168   * 1169   * @param signer keyring of signer1170   * @param collectionId ID of collection1171   * @param tokenId ID of token1172   * @param fromAddressObj address on behalf of which the token will be sent1173   * @param toAddressObj new token owner1174   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Ethereum: "0x9F0583DbB85..."})1175   * @returns ```true``` if extrinsic success, otherwise ```false```1176   */1177  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId): Promise<boolean> {1178    return await super.transferTokenFrom(signer, collectionId, tokenId, fromAddressObj, toAddressObj, 1n);1179  }11801181  /**1182   * Recursively find the address that owns the token1183   * @param collectionId ID of collection1184   * @param tokenId ID of token1185   * @param blockHashAt 1186   * @example getTokenTopmostOwner(10, 5);1187   * @returns address in CrossAccountId format, e.g. {Substrate: "5DyN4Y92vZCjv38fg..."}1188   */1189  async getTokenTopmostOwner(collectionId: number, tokenId: number, blockHashAt?: string): Promise<ICrossAccountId | null> {1190    let owner;1191    if (typeof blockHashAt === 'undefined') {1192      owner = await this.helper.callRpc('api.rpc.unique.topmostTokenOwner', [collectionId, tokenId]);1193    } else {1194      owner = await this.helper.callRpc('api.rpc.unique.topmostTokenOwner', [collectionId, tokenId, blockHashAt]);1195    }11961197    if (owner === null) return null;11981199    owner = owner.toHuman();12001201    return owner.Substrate ? {Substrate: this.helper.address.normalizeSubstrate(owner.Substrate)} : owner;1202  }12031204  /**1205   * Get tokens nested in the provided token1206   * @param collectionId ID of collection1207   * @param tokenId ID of token1208   * @param blockHashAt optionally query the data at the block with this hash1209   * @example getTokenChildren(10, 5);1210   * @returns tokens whose depth of nesting is <= 5 1211   */1212  async getTokenChildren(collectionId: number, tokenId: number, blockHashAt?: string): Promise<IToken[]> {1213    let children;1214    if(typeof blockHashAt === 'undefined') {1215      children = await this.helper.callRpc('api.rpc.unique.tokenChildren', [collectionId, tokenId]);1216    } else {1217      children = await this.helper.callRpc('api.rpc.unique.tokenChildren', [collectionId, tokenId, blockHashAt]);1218    }12191220    return children.toJSON().map((x: any) => {1221      return {collectionId: x.collection, tokenId: x.token};1222    });1223  }12241225  /**1226   * Nest one token into another1227   * @param signer keyring of signer1228   * @param tokenObj token to be nested1229   * @param rootTokenObj token to be parent1230   * @example nestToken(aliceKeyring, {collectionId: 10, tokenId: 5}, {collectionId: 10, tokenId: 4});1231   * @returns ```true``` if extrinsic success, otherwise ```false```1232   */1233  async nestToken(signer: TSigner, tokenObj: IToken, rootTokenObj: IToken): Promise<boolean> {1234    const rootTokenAddress = {Ethereum: this.helper.util.getNestingTokenAddress(rootTokenObj.collectionId, rootTokenObj.tokenId)};1235    const result = await this.transferToken(signer, tokenObj.collectionId, tokenObj.tokenId, rootTokenAddress);1236    if(!result) {1237      throw Error('Unable to nest token!');1238    }1239    return result;1240  }12411242  /**1243   * Remove token from nested state1244   * @param signer keyring of signer1245   * @param tokenObj token to unnest1246   * @param rootTokenObj parent of a token1247   * @param toAddressObj address of a new token owner 1248   * @example unnestToken(aliceKeyring, {collectionId: 10, tokenId: 5}, {collectionId: 10, tokenId: 4}, {Substrate: "5DyN4Y92vZCjv38fg..."});1249   * @returns ```true``` if extrinsic success, otherwise ```false```1250   */1251  async unnestToken(signer: TSigner, tokenObj: IToken, rootTokenObj: IToken, toAddressObj: ICrossAccountId): Promise<boolean> {1252    const rootTokenAddress = {Ethereum: this.helper.util.getNestingTokenAddress(rootTokenObj.collectionId, rootTokenObj.tokenId)};1253    const result = await this.transferTokenFrom(signer, tokenObj.collectionId, tokenObj.tokenId, rootTokenAddress, toAddressObj);1254    if(!result) {1255      throw Error('Unable to unnest token!');1256    }1257    return result;1258  }12591260  /**1261   * Mint new collection1262   * @param signer keyring of signer1263   * @param collectionOptions Collection options1264   * @example 1265   * mintCollection(aliceKeyring, {1266   *   name: 'New',1267   *   description: 'New collection',1268   *   tokenPrefix: 'NEW',1269   * })1270   * @returns object of the created collection1271   */1272  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions): Promise<UniqueNFTCollection> {1273    return await super.mintCollection(signer, collectionOptions, 'NFT') as UniqueNFTCollection;1274  }12751276  /**1277   * Mint new token1278   * @param signer keyring of signer1279   * @param data token data1280   * @returns created token object1281   */1282  async mintToken(signer: TSigner, data: { collectionId: number; owner: ICrossAccountId | string; properties?: IProperty[]; }): Promise<UniqueNFTToken> {1283    const creationResult = await this.helper.executeExtrinsic(1284      signer,1285      'api.tx.unique.createItem', [data.collectionId, (typeof data.owner === 'string') ? {Substrate: data.owner} : data.owner, {1286        nft: {1287          properties: data.properties,1288        },1289      }],1290      true,1291    );1292    const createdTokens = this.helper.util.extractTokensFromCreationResult(creationResult);1293    if (createdTokens.tokens.length > 1) throw Error('Minted multiple tokens');1294    if (createdTokens.tokens.length < 1) throw Error('No tokens minted');1295    return this.getTokenObject(data.collectionId, createdTokens.tokens[0].tokenId);1296  }12971298  /**1299   * Mint multiple NFT tokens1300   * @param signer keyring of signer1301   * @param collectionId ID of collection1302   * @param tokens array of tokens with owner and properties1303   * @example 1304   * mintMultipleTokens(aliceKeyring, 10, [{1305   *     owner: {Substrate: "5DyN4Y92vZCjv38fg..."},1306   *     properties: [{key: "gender", value: "male"},{key: "age", value: "45"}],1307   *   },{1308   *     owner: {Ethereum: "0x9F0583DbB855d..."},1309   *     properties: [{key: "gender", value: "female"},{key: "age", value: "22"}],1310   * }]);1311   * @returns ```true``` if extrinsic success, otherwise ```false```1312   */1313  async mintMultipleTokens(signer: TSigner, collectionId: number, tokens: {owner: ICrossAccountId, properties?: IProperty[]}[]): Promise<UniqueNFTToken[]> {1314    const creationResult = await this.helper.executeExtrinsic(1315      signer,1316      'api.tx.unique.createMultipleItemsEx', [collectionId, {NFT: tokens}],1317      true,1318    );1319    const collection = this.getCollectionObject(collectionId);1320    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1321  }13221323  /**1324   * Mint multiple NFT tokens with one owner1325   * @param signer keyring of signer1326   * @param collectionId ID of collection1327   * @param owner tokens owner1328   * @param tokens array of tokens with owner and properties1329   * @example1330   * mintMultipleTokensWithOneOwner(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...", [{1331   *   properties: [{1332   *   key: "gender",1333   *   value: "female",1334   *  },{1335   *   key: "age",1336   *   value: "33",1337   *  }],1338   * }]);1339   * @returns array of newly created tokens1340   */1341  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {properties?: IProperty[]}[]): Promise<UniqueNFTToken[]> {1342    const rawTokens = [];1343    for (const token of tokens) {1344      const raw = {NFT: {properties: token.properties}};1345      rawTokens.push(raw);1346    }1347    const creationResult = await this.helper.executeExtrinsic(1348      signer,1349      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1350      true,1351    );1352    const collection = this.getCollectionObject(collectionId);1353    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1354  }13551356  /**1357   * Destroys a concrete instance of NFT.1358   * @param signer keyring of signer1359   * @param collectionId ID of collection1360   * @param tokenId ID of token1361   * @example burnToken(aliceKeyring, 10, 5);1362   * @returns ```true``` and burnt token number is extrinsic success. Otherwise ```false``` and ```null```1363   */1364  async burnToken(signer: IKeyringPair, collectionId: number, tokenId: number): Promise<{ success: boolean; token: number | null; }> {1365    return await super.burnToken(signer, collectionId, tokenId, 1n);1366  }13671368  /**1369   * Set, change, or remove approved address to transfer the ownership of the NFT.1370   * 1371   * @param signer keyring of signer1372   * @param collectionId ID of collection1373   * @param tokenId ID of token1374   * @param toAddressObj address to approve1375   * @example approveToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1376   * @returns ```true``` if extrinsic success, otherwise ```false```1377   */1378  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId) {1379    return super.approveToken(signer, collectionId, tokenId, toAddressObj, 1n);1380  }1381}138213831384class RFTGroup extends NFTnRFT {1385  /**1386   * Get collection object1387   * @param collectionId ID of collection1388   * @example getCollectionObject(2);1389   * @returns instance of UniqueRFTCollection1390   */1391  getCollectionObject(collectionId: number): UniqueRFTCollection {1392    return new UniqueRFTCollection(collectionId, this.helper);1393  }13941395  /**1396   * Get token object1397   * @param collectionId ID of collection1398   * @param tokenId ID of token1399   * @example getTokenObject(10, 5);1400   * @returns instance of UniqueNFTToken1401   */1402  getTokenObject(collectionId: number, tokenId: number): UniqueRFTToken {1403    return new UniqueRFTToken(tokenId, this.getCollectionObject(collectionId));1404  }14051406  /**1407   * Get top 10 token owners with the largest number of pieces 1408   * @param collectionId ID of collection1409   * @param tokenId ID of token1410   * @example getTokenTop10Owners(10, 5);1411   * @returns array of top 10 owners1412   */1413  async getTokenTop10Owners(collectionId: number, tokenId: number): Promise<ICrossAccountId[]> {1414    return (await this.helper.callRpc('api.rpc.unique.tokenOwners', [collectionId, tokenId])).toJSON().map(crossAccountIdFromLower);1415  }14161417  /**1418   * Get number of pieces owned by address1419   * @param collectionId ID of collection1420   * @param tokenId ID of token1421   * @param addressObj address token owner1422   * @example getTokenBalance(10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."});1423   * @returns number of pieces ownerd by address1424   */1425  async getTokenBalance(collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<bigint> {1426    return (await this.helper.callRpc('api.rpc.unique.balance', [collectionId, addressObj, tokenId])).toBigInt();1427  }14281429  /**1430   * Transfer pieces of token to another address1431   * @param signer keyring of signer1432   * @param collectionId ID of collection1433   * @param tokenId ID of token1434   * @param addressObj address of a new owner1435   * @param amount number of pieces to be transfered1436   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, 2000n)1437   * @returns ```true``` if extrinsic success, otherwise ```false```1438   */1439  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId, amount=1n): Promise<boolean> {1440    return await super.transferToken(signer, collectionId, tokenId, addressObj, amount);1441  }14421443  /**1444   * Change ownership of some pieces of RFT on behalf of the owner. 1445   * @param signer keyring of signer1446   * @param collectionId ID of collection1447   * @param tokenId ID of token1448   * @param fromAddressObj address on behalf of which the token will be sent1449   * @param toAddressObj new token owner1450   * @param amount number of pieces to be transfered1451   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Substrate: "5DfhbVfww7ThF8q6f3i..."}, 2000n)1452   * @returns ```true``` if extrinsic success, otherwise ```false```1453   */1454  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1455    return await super.transferTokenFrom(signer, collectionId, tokenId, fromAddressObj, toAddressObj, amount);1456  }14571458  /**1459   * Mint new collection1460   * @param signer keyring of signer1461   * @param collectionOptions Collection options1462   * @example1463   * mintCollection(aliceKeyring, {1464   *   name: 'New',1465   *   description: 'New collection',1466   *   tokenPrefix: 'NEW',1467   * })1468   * @returns object of the created collection1469   */1470  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions): Promise<UniqueRFTCollection> {1471    return await super.mintCollection(signer, collectionOptions, 'RFT') as UniqueRFTCollection;1472  }14731474  /**1475   * Mint new token1476   * @param signer keyring of signer1477   * @param data token data1478   * @example mintToken(aliceKeyring, {collectionId: 10, owner: {Substrate: '5GHoZe9c73RYbVzq...'}, pieces: 10000n});1479   * @returns created token object1480   */1481  async mintToken(signer: TSigner, data: { collectionId: number; owner: ICrossAccountId | string; pieces: bigint; properties?: IProperty[]; }): Promise<UniqueRFTToken> {1482    const creationResult = await this.helper.executeExtrinsic(1483      signer,1484      'api.tx.unique.createItem', [data.collectionId, (typeof data.owner === 'string') ? {Substrate: data.owner} : data.owner, {1485        refungible: {1486          pieces: data.pieces,1487          properties: data.properties,1488        },1489      }],1490      true,1491    );1492    const createdTokens = this.helper.util.extractTokensFromCreationResult(creationResult);1493    if (createdTokens.tokens.length > 1) throw Error('Minted multiple tokens');1494    if (createdTokens.tokens.length < 1) throw Error('No tokens minted');1495    return this.getTokenObject(data.collectionId, createdTokens.tokens[0].tokenId);1496  }14971498  async mintMultipleTokens(signer: TSigner, collectionId: number, tokens: {owner: ICrossAccountId, pieces: bigint, properties?: IProperty[]}[]): Promise<UniqueRFTToken[]> {1499    throw Error('Not implemented');1500    const creationResult = await this.helper.executeExtrinsic(1501      signer,1502      'api.tx.unique.createMultipleItemsEx', [collectionId, {RefungibleMultipleOwners: tokens}],1503      true, // `Unable to mint RFT tokens for ${label}`,1504    );1505    const collection = this.getCollectionObject(collectionId);1506    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1507  }15081509  /**1510   * Mint multiple RFT tokens with one owner1511   * @param signer keyring of signer1512   * @param collectionId ID of collection1513   * @param owner tokens owner1514   * @param tokens array of tokens with properties and pieces1515   * @example mintMultipleTokensWithOneOwner(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, [{pieces: 100000n, properties: [{key: "gender", value: "male"}]}]);1516   * @returns array of newly created RFT tokens1517   */1518  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {pieces: bigint, properties?: IProperty[]}[]): Promise<UniqueRFTToken[]> {1519    const rawTokens = [];1520    for (const token of tokens) {1521      const raw = {ReFungible: {pieces: token.pieces, properties: token.properties}};1522      rawTokens.push(raw);1523    }1524    const creationResult = await this.helper.executeExtrinsic(1525      signer,1526      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1527      true,1528    );1529    const collection = this.getCollectionObject(collectionId);1530    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1531  }15321533  /**1534   * Destroys a concrete instance of RFT.1535   * @param signer keyring of signer1536   * @param collectionId ID of collection1537   * @param tokenId ID of token1538   * @param amount number of pieces to be burnt1539   * @example burnToken(aliceKeyring, 10, 5);1540   * @returns ```true``` and burnt token number is extrinsic success. Otherwise ```false``` and ```null```1541   */1542  async burnToken(signer: IKeyringPair, collectionId: number, tokenId: number, amount=1n): Promise<{ success: boolean; token: number | null; }> {1543    return await super.burnToken(signer, collectionId, tokenId, amount);1544  }15451546  /**1547   * Set, change, or remove approved address to transfer the ownership of the RFT.1548   * 1549   * @param signer keyring of signer1550   * @param collectionId ID of collection1551   * @param tokenId ID of token1552   * @param toAddressObj address to approve1553   * @param amount number of pieces to be approved1554   * @example approveToken(aliceKeyring, 10, 5, {Substrate: "5GHoZe9c73RYbVzq..."}, "", 10000n);1555   * @returns true if the token success, otherwise false1556   */1557  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {1558    return super.approveToken(signer, collectionId, tokenId, toAddressObj, amount);1559  }15601561  /**1562   * Get total number of pieces1563   * @param collectionId ID of collection1564   * @param tokenId ID of token1565   * @example getTokenTotalPieces(10, 5);1566   * @returns number of pieces1567   */1568  async getTokenTotalPieces(collectionId: number, tokenId: number): Promise<bigint> {1569    return (await this.helper.callRpc('api.rpc.unique.totalPieces', [collectionId, tokenId])).unwrap().toBigInt();1570  }15711572  /**1573   * Change number of token pieces. Signer must be the owner of all token pieces.1574   * @param signer keyring of signer1575   * @param collectionId ID of collection1576   * @param tokenId ID of token1577   * @param amount new number of pieces1578   * @example repartitionToken(aliceKeyring, 10, 5, 12345n);1579   * @returns true if the repartion was success, otherwise false1580   */1581  async repartitionToken(signer: TSigner, collectionId: number, tokenId: number, amount: bigint): Promise<boolean> {1582    const currentAmount = await this.getTokenTotalPieces(collectionId, tokenId);1583    const repartitionResult = await this.helper.executeExtrinsic(1584      signer,1585      'api.tx.unique.repartition', [collectionId, tokenId, amount],1586      true,1587    );1588    if(currentAmount < amount) return this.helper.util.findCollectionInEvents(repartitionResult.result.events, collectionId, 'common', 'ItemCreated');1589    return this.helper.util.findCollectionInEvents(repartitionResult.result.events, collectionId, 'common', 'ItemDestroyed');1590  }1591}159215931594class FTGroup extends CollectionGroup {1595  /**1596   * Get collection object1597   * @param collectionId ID of collection1598   * @example getCollectionObject(2);1599   * @returns instance of UniqueFTCollection1600   */1601  getCollectionObject(collectionId: number): UniqueFTCollection {1602    return new UniqueFTCollection(collectionId, this.helper);1603  }16041605  /**1606   * Mint new fungible collection1607   * @param signer keyring of signer1608   * @param collectionOptions Collection options1609   * @param decimalPoints number of token decimals 1610   * @example1611   * mintCollection(aliceKeyring, {1612   *   name: 'New',1613   *   description: 'New collection',1614   *   tokenPrefix: 'NEW',1615   * }, 18)1616   * @returns newly created fungible collection1617   */1618  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions, decimalPoints = 0): Promise<UniqueFTCollection> {1619    collectionOptions = JSON.parse(JSON.stringify(collectionOptions)) as ICollectionCreationOptions; // Clone object1620    if(collectionOptions.tokenPropertyPermissions) throw Error('Fungible collections has no tokenPropertyPermissions');1621    collectionOptions.mode = {fungible: decimalPoints};1622    for (const key of ['name', 'description', 'tokenPrefix']) {1623      if (typeof collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] === 'string') collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] = this.helper.util.str2vec(collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] as string);1624    }1625    const creationResult = await this.helper.executeExtrinsic(1626      signer,1627      'api.tx.unique.createCollectionEx', [collectionOptions],1628      true,1629    );1630    return this.getCollectionObject(this.helper.util.extractCollectionIdFromCreationResult(creationResult));1631  }16321633  /**1634   * Mint tokens1635   * @param signer keyring of signer1636   * @param collectionId ID of collection1637   * @param owner address owner of new tokens1638   * @param amount amount of tokens to be meanted1639   * @example mintTokens(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq"}, 1000n);1640   * @returns ```true``` if extrinsic success, otherwise ```false``` 1641   */1642  async mintTokens(signer: TSigner, collectionId: number, owner: ICrossAccountId | string, amount: bigint): Promise<boolean> {1643    const creationResult = await this.helper.executeExtrinsic(1644      signer,1645      'api.tx.unique.createItem', [collectionId, (typeof owner === 'string') ? {Substrate: owner} : owner, {1646        fungible: {1647          value: amount,1648        },1649      }],1650      true, // `Unable to mint fungible tokens for ${label}`,1651    );1652    return this.helper.util.findCollectionInEvents(creationResult.result.events, collectionId, 'common', 'ItemCreated');1653  }16541655  /**1656   * Mint multiple Fungible tokens with one owner1657   * @param signer keyring of signer1658   * @param collectionId ID of collection1659   * @param owner tokens owner1660   * @param tokens array of tokens with properties and pieces1661   * @returns ```true``` if extrinsic success, otherwise ```false``` 1662   */1663  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {value: bigint}[]): Promise<boolean> {1664    const rawTokens = [];1665    for (const token of tokens) {1666      const raw = {Fungible: {Value: token.value}};1667      rawTokens.push(raw);1668    }1669    const creationResult = await this.helper.executeExtrinsic(1670      signer,1671      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1672      true,1673    );1674    return this.helper.util.findCollectionInEvents(creationResult.result.events, collectionId, 'common', 'ItemCreated');1675  }16761677  /**1678   * Get the top 10 owners with the largest balance for the Fungible collection 1679   * @param collectionId ID of collection1680   * @example getTop10Owners(10);1681   * @returns array of ```ICrossAccountId```1682   */1683  async getTop10Owners(collectionId: number): Promise<ICrossAccountId[]> {1684    return (await this.helper.callRpc('api.rpc.unique.tokenOwners', [collectionId, 0])).toJSON().map(crossAccountIdFromLower);1685  }16861687  /**1688   * Get account balance1689   * @param collectionId ID of collection1690   * @param addressObj address of owner1691   * @example getBalance(10, {Substrate: "5GHoZe9c73RYbVzq..."})1692   * @returns amount of fungible tokens owned by address1693   */1694  async getBalance(collectionId: number, addressObj: ICrossAccountId): Promise<bigint> {1695    return (await this.helper.callRpc('api.rpc.unique.balance', [collectionId, addressObj, 0])).toBigInt();1696  }16971698  /**1699   * Transfer tokens to address1700   * @param signer keyring of signer1701   * @param collectionId ID of collection1702   * @param toAddressObj address recipient1703   * @param amount amount of tokens to be sent1704   * @example transfer(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n);1705   * @returns ```true``` if extrinsic success, otherwise ```false``` 1706   */1707  async transfer(signer: TSigner, collectionId: number, toAddressObj: ICrossAccountId, amount=1n) {1708    return await super.transferToken(signer, collectionId, 0, toAddressObj, amount);1709  }17101711  /**1712   * Transfer some tokens on behalf of the owner.1713   * @param signer keyring of signer1714   * @param collectionId ID of collection1715   * @param fromAddressObj address on behalf of which tokens will be sent1716   * @param toAddressObj address where token to be sent1717   * @param amount number of tokens to be sent1718   * @example transferFrom(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, {Substrate: "5DfhbVfww7ThF8q6f3ij..."}, 10000n);1719   * @returns ```true``` if extrinsic success, otherwise ```false``` 1720   */1721  async transferFrom(signer: TSigner, collectionId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {1722    return await super.transferTokenFrom(signer, collectionId, 0, fromAddressObj, toAddressObj, amount);1723  }17241725  /**1726   * Destroy some amount of tokens1727   * @param signer keyring of signer1728   * @param collectionId ID of collection1729   * @param amount amount of tokens to be destroyed1730   * @example burnTokens(aliceKeyring, 10, 1000n);1731   * @returns ```true``` if extrinsic success, otherwise ```false``` 1732   */1733  async burnTokens(signer: IKeyringPair, collectionId: number, amount=1n): Promise<boolean> {1734    return (await super.burnToken(signer, collectionId, 0, amount)).success;1735  }17361737  /**1738   * Burn some tokens on behalf of the owner.1739   * @param signer keyring of signer1740   * @param collectionId ID of collection1741   * @param fromAddressObj address on behalf of which tokens will be burnt1742   * @param amount amount of tokens to be burnt1743   * @example burnTokensFrom(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n);1744   * @returns ```true``` if extrinsic success, otherwise ```false``` 1745   */1746  async burnTokensFrom(signer: IKeyringPair, collectionId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1747    return await super.burnTokenFrom(signer, collectionId, fromAddressObj, 0, amount);1748  }17491750  /**1751   * Get total collection supply1752   * @param collectionId 1753   * @returns 1754   */1755  async getTotalPieces(collectionId: number): Promise<bigint> {1756    return (await this.helper.callRpc('api.rpc.unique.totalPieces', [collectionId, 0])).unwrap().toBigInt();1757  }17581759  /**1760   * Set, change, or remove approved address to transfer tokens.1761   * 1762   * @param signer keyring of signer1763   * @param collectionId ID of collection1764   * @param toAddressObj address to be approved1765   * @param amount amount of tokens to be approved1766   * @example approveTokens(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n)1767   * @returns ```true``` if extrinsic success, otherwise ```false``` 1768   */1769  async approveTokens(signer: IKeyringPair, collectionId: number, toAddressObj: ICrossAccountId, amount=1n) {1770    return super.approveToken(signer, collectionId, 0, toAddressObj, amount);1771  }17721773  /**1774   * Get amount of fungible tokens approved to transfer1775   * @param collectionId ID of collection1776   * @param fromAddressObj owner of tokens1777   * @param toAddressObj the address approved for the transfer of tokens on behalf of the owner1778   * @returns number of tokens approved for the transfer1779   */1780  async getApprovedTokens(collectionId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {1781    return super.getTokenApprovedPieces(collectionId, 0, toAddressObj, fromAddressObj);1782  }1783}178417851786class ChainGroup extends HelperGroup {1787  /**1788   * Get system properties of a chain1789   * @example getChainProperties();1790   * @returns ss58Format, token decimals, and token symbol1791   */1792  getChainProperties(): IChainProperties {1793    const properties = (this.helper.api as any).registry.getChainProperties().toJSON();1794    return {1795      ss58Format: properties.ss58Format.toJSON(),1796      tokenDecimals: properties.tokenDecimals.toJSON(),1797      tokenSymbol: properties.tokenSymbol.toJSON(),1798    };1799  }18001801  /**1802   * Get chain header1803   * @example getLatestBlockNumber();1804   * @returns the number of the last block1805   */1806  async getLatestBlockNumber(): Promise<number> {1807    return (await this.helper.callRpc('api.rpc.chain.getHeader')).number.toNumber();1808  }18091810  /**1811   * Get block hash by block number1812   * @param blockNumber number of block1813   * @example getBlockHashByNumber(12345);1814   * @returns hash of a block1815   */1816  async getBlockHashByNumber(blockNumber: number): Promise<string | null> {1817    const blockHash = (await this.helper.callRpc('api.rpc.chain.getBlockHash', [blockNumber])).toJSON();1818    if(blockHash === '0x0000000000000000000000000000000000000000000000000000000000000000') return null;1819    return blockHash;1820  }18211822  /**1823   * Get account nonce1824   * @param address substrate address1825   * @example getNonce("5GrwvaEF5zXb26Fz...");1826   * @returns number, account's nonce1827   */1828  async getNonce(address: TSubstrateAccount): Promise<number> {1829    return (await (this.helper.api as any).query.system.account(address)).nonce.toNumber();1830  }1831}183218331834class BalanceGroup extends HelperGroup {1835  /**1836   * Representation of the native token in the smallest unit1837   * @example getOneTokenNominal()1838   * @returns ```BigInt``` representation of the native token in the smallest unit, e.g. ```1_000_000_000_000_000_000n``` for QTZ.1839   */1840  getOneTokenNominal(): bigint {1841    const chainProperties = this.helper.chain.getChainProperties();1842    return 10n ** BigInt((chainProperties.tokenDecimals || [18])[0]);1843  }18441845  /**1846   * Get substrate address balance1847   * @param address substrate address1848   * @example getSubstrate("5GrwvaEF5zXb26Fz...")1849   * @returns amount of tokens on address1850   */1851  async getSubstrate(address: TSubstrateAccount): Promise<bigint> {1852    return (await this.helper.callRpc('api.query.system.account', [address])).data.free.toBigInt();1853  }18541855  /**1856   * Get ethereum address balance1857   * @param address ethereum address1858   * @example getEthereum("0x9F0583DbB855d...")1859   * @returns amount of tokens on address1860   */1861  async getEthereum(address: TEthereumAccount): Promise<bigint> {1862    return (await this.helper.callRpc('api.rpc.eth.getBalance', [address])).toBigInt();1863  }18641865  /**1866   * Transfer tokens to substrate address1867   * @param signer keyring of signer1868   * @param address substrate address of a recipient1869   * @param amount amount of tokens to be transfered1870   * @example transferToSubstrate(aliceKeyring, "5GrwvaEF5zXb26Fz...", 100_000_000_000n);1871   * @returns ```true``` if extrinsic success, otherwise ```false```1872   */1873  async transferToSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint | string): Promise<boolean> {1874    const result = await this.helper.executeExtrinsic(signer, 'api.tx.balances.transfer', [address, amount], true/*, `Unable to transfer balance from ${this.helper.getSignerAddress(signer)} to ${address}`*/);18751876    let transfer = {from: null, to: null, amount: 0n} as any;1877    result.result.events.forEach(({event: {data, method, section}}) => {1878      if ((section === 'balances') && (method === 'Transfer')) {1879        transfer = {1880          from: this.helper.address.normalizeSubstrate(data[0]),1881          to: this.helper.address.normalizeSubstrate(data[1]),1882          amount: BigInt(data[2]),1883        };1884      }1885    });1886    let isSuccess = this.helper.address.normalizeSubstrate(typeof signer === 'string' ? signer : signer.address) === transfer.from;1887    isSuccess = isSuccess && this.helper.address.normalizeSubstrate(address) === transfer.to;1888    isSuccess = isSuccess && BigInt(amount) === transfer.amount;1889    return isSuccess;1890  }1891}189218931894class AddressGroup extends HelperGroup {1895  /**1896   * Normalizes the address to the specified ss58 format, by default ```42```.1897   * @param address substrate address1898   * @param ss58Format format for address conversion, by default ```42```1899   * @example normalizeSubstrate("unjKJQJrRd238pkUZZvzDQrfKuM39zBSnQ5zjAGAGcdRhaJTx") // returns 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY1900   * @returns substrate address converted to normalized (i.e., starting with 5) or specified explicitly representation1901   */1902  normalizeSubstrate(address: TSubstrateAccount, ss58Format = 42): TSubstrateAccount {1903    return this.helper.util.normalizeSubstrateAddress(address, ss58Format);1904  }19051906  /**1907   * Get address in the connected chain format1908   * @param address substrate address1909   * @example normalizeSubstrateToChainFormat("5GrwvaEF5zXb26Fz...") // returns unjKJQJrRd238pkUZZ... for Unique Network1910   * @returns address in chain format1911   */1912  async normalizeSubstrateToChainFormat(address: TSubstrateAccount): Promise<TSubstrateAccount> {1913    const info = this.helper.chain.getChainProperties();1914    return encodeAddress(decodeAddress(address), info.ss58Format);1915  }19161917  /**1918   * Get substrate mirror of an ethereum address1919   * @param ethAddress ethereum address1920   * @param toChainFormat false for normalized account1921   * @example ethToSubstrate('0x9F0583DbB855d...')1922   * @returns substrate mirror of a provided ethereum address1923   */1924  async ethToSubstrate(ethAddress: TEthereumAccount, toChainFormat=false): Promise<TSubstrateAccount> {1925    if(!toChainFormat) return evmToAddress(ethAddress);1926    const info = this.helper.chain.getChainProperties();1927    return evmToAddress(ethAddress, info.ss58Format);1928  }19291930  /**1931   * Get ethereum mirror of a substrate address1932   * @param subAddress substrate account1933   * @example substrateToEth("5DnSF6RRjwteE3BrC...")1934   * @returns ethereum mirror of a provided substrate address1935   */1936  substrateToEth(subAddress: TSubstrateAccount): TEthereumAccount {1937    return nesting.toChecksumAddress('0x' + Array.from(addressToEvm(subAddress), i => i.toString(16).padStart(2, '0')).join(''));1938  }1939}194019411942export class UniqueHelper extends ChainHelperBase {1943  chain: ChainGroup;1944  balance: BalanceGroup;1945  address: AddressGroup;1946  collection: CollectionGroup;1947  nft: NFTGroup;1948  rft: RFTGroup;1949  ft: FTGroup;19501951  constructor(logger?: ILogger) {1952    super(logger);1953    this.chain = new ChainGroup(this);1954    this.balance = new BalanceGroup(this);1955    this.address = new AddressGroup(this);1956    this.collection = new CollectionGroup(this);1957    this.nft = new NFTGroup(this);1958    this.rft = new RFTGroup(this);1959    this.ft = new FTGroup(this);1960  }  1961}196219631964class UniqueCollectionBase {1965  helper: UniqueHelper;1966  collectionId: number;19671968  constructor(collectionId: number, uniqueHelper: UniqueHelper) {1969    this.collectionId = collectionId;1970    this.helper = uniqueHelper;1971  }19721973  async getData() {1974    return await this.helper.collection.getData(this.collectionId);1975  }19761977  async getLastTokenId() {1978    return await this.helper.collection.getLastTokenId(this.collectionId);1979  }19801981  async isTokenExists(tokenId: number) {1982    return await this.helper.collection.isTokenExists(this.collectionId, tokenId);1983  }19841985  async getAdmins() {1986    return await this.helper.collection.getAdmins(this.collectionId);1987  }19881989  async getAllowList() {1990    return await this.helper.collection.getAllowList(this.collectionId);1991  }19921993  async getEffectiveLimits() {1994    return await this.helper.collection.getEffectiveLimits(this.collectionId);1995  }19961997  async setSponsor(signer: TSigner, sponsorAddress: TSubstrateAccount) {1998    return await this.helper.collection.setSponsor(signer, this.collectionId, sponsorAddress);1999  }20002001  async confirmSponsorship(signer: TSigner) {2002    return await this.helper.collection.confirmSponsorship(signer, this.collectionId);2003  }20042005  async setLimits(signer: TSigner, limits: ICollectionLimits) {2006    return await this.helper.collection.setLimits(signer, this.collectionId, limits);2007  }20082009  async changeOwner(signer: TSigner, ownerAddress: TSubstrateAccount) {2010    return await this.helper.collection.changeOwner(signer, this.collectionId, ownerAddress);2011  }20122013  async addAdmin(signer: TSigner, adminAddressObj: ICrossAccountId) {2014    return await this.helper.collection.addAdmin(signer, this.collectionId, adminAddressObj);2015  }20162017  async enableAllowList(signer: TSigner, value = true/*: 'Normal' | 'AllowList' = 'AllowList'*/) {2018    return await this.setPermissions(signer, value ? {access: 'AllowList', mintMode: true} : {access: 'Normal'});2019  }20202021  async addToAllowList(signer: TSigner, addressObj: ICrossAccountId) {2022    return await this.helper.collection.addToAllowList(signer, this.collectionId, addressObj);2023  }20242025  async removeFromAllowList(signer: TSigner, addressObj: ICrossAccountId) {2026    return await this.helper.collection.removeFromAllowList(signer, this.collectionId, addressObj);2027  }20282029  async removeAdmin(signer: TSigner, adminAddressObj: ICrossAccountId) {2030    return await this.helper.collection.removeAdmin(signer, this.collectionId, adminAddressObj);2031  }20322033  async setProperties(signer: TSigner, properties: IProperty[]) {2034    return await this.helper.collection.setProperties(signer, this.collectionId, properties);2035  }20362037  async deleteProperties(signer: TSigner, propertyKeys: string[]) {2038    return await this.helper.collection.deleteProperties(signer, this.collectionId, propertyKeys);2039  }20402041  async getTokenNextSponsored(tokenId: number, addressObj: ICrossAccountId) {2042    return await this.helper.collection.getTokenNextSponsored(this.collectionId, tokenId, addressObj);2043  }20442045  async setPermissions(signer: TSigner, permissions: ICollectionPermissions) {2046    return await this.helper.collection.setPermissions(signer, this.collectionId, permissions);2047  }20482049  async enableNesting(signer: TSigner, permissions: INestingPermissions) {2050    return await this.helper.collection.enableNesting(signer, this.collectionId, permissions);2051  }20522053  async disableNesting(signer: TSigner) {2054    return await this.helper.collection.disableNesting(signer, this.collectionId);2055  }20562057  async burn(signer: TSigner) {2058    return await this.helper.collection.burn(signer, this.collectionId);2059  }2060}206120622063class UniqueNFTCollection extends UniqueCollectionBase {2064  getTokenObject(tokenId: number) {2065    return new UniqueNFTToken(tokenId, this);2066  }20672068  async getTokensByAddress(addressObj: ICrossAccountId) {2069    return await this.helper.nft.getTokensByAddress(this.collectionId, addressObj);2070  }20712072  async getToken(tokenId: number, blockHashAt?: string) {2073    return await this.helper.nft.getToken(this.collectionId, tokenId, [], blockHashAt);2074  }20752076  async getTokenOwner(tokenId: number, blockHashAt?: string) {2077    return await this.helper.nft.getTokenOwner(this.collectionId, tokenId, blockHashAt);2078  }20792080  async getTokenTopmostOwner(tokenId: number, blockHashAt?: string) {2081    return await this.helper.nft.getTokenTopmostOwner(this.collectionId, tokenId, blockHashAt);2082  }20832084  async getTokenChildren(tokenId: number, blockHashAt?: string) {2085    return await this.helper.nft.getTokenChildren(this.collectionId, tokenId, blockHashAt);2086  }20872088  async transferToken(signer: TSigner, tokenId: number, addressObj: ICrossAccountId) {2089    return await this.helper.nft.transferToken(signer, this.collectionId, tokenId, addressObj);2090  }20912092  async transferTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2093    return await this.helper.nft.transferTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, toAddressObj);2094  }20952096  async approveToken(signer: TSigner, tokenId: number, toAddressObj: ICrossAccountId) {2097    return await this.helper.nft.approveToken(signer, this.collectionId, tokenId, toAddressObj);2098  }20992100  async isTokenApproved(tokenId: number, toAddressObj: ICrossAccountId) {2101    return await this.helper.nft.isTokenApproved(this.collectionId, tokenId, toAddressObj);2102  }21032104  async mintToken(signer: TSigner, owner: ICrossAccountId, properties?: IProperty[]) {2105    return await this.helper.nft.mintToken(signer, {collectionId: this.collectionId, owner, properties});2106  }21072108  async mintMultipleTokens(signer: TSigner, tokens: {owner: ICrossAccountId, properties?: IProperty[]}[]) {2109    return await this.helper.nft.mintMultipleTokens(signer, this.collectionId, tokens);2110  }21112112  async burnToken(signer: TSigner, tokenId: number) {2113    return await this.helper.nft.burnToken(signer, this.collectionId, tokenId);2114  }21152116  async setTokenProperties(signer: TSigner, tokenId: number, properties: IProperty[]) {2117    return await this.helper.nft.setTokenProperties(signer, this.collectionId, tokenId, properties);2118  }21192120  async deleteTokenProperties(signer: TSigner, tokenId: number, propertyKeys: string[]) {2121    return await this.helper.nft.deleteTokenProperties(signer, this.collectionId, tokenId, propertyKeys);2122  }21232124  async setTokenPropertyPermissions(signer: TSigner, permissions: ITokenPropertyPermission[]) {2125    return await this.helper.nft.setTokenPropertyPermissions(signer, this.collectionId, permissions);2126  }21272128  async nestToken(signer: TSigner, tokenId: number, toTokenObj: IToken) {2129    return await this.helper.nft.nestToken(signer, {collectionId: this.collectionId, tokenId}, toTokenObj);2130  }21312132  async unnestToken(signer: TSigner, tokenId: number, fromTokenObj: IToken, toAddressObj: ICrossAccountId) {2133    return await this.helper.nft.unnestToken(signer, {collectionId: this.collectionId, tokenId}, fromTokenObj, toAddressObj);2134  }2135}213621372138class UniqueRFTCollection extends UniqueCollectionBase {2139  getTokenObject(tokenId: number) {2140    return new UniqueRFTToken(tokenId, this);2141  }21422143  async getTokensByAddress(addressObj: ICrossAccountId) {2144    return await this.helper.rft.getTokensByAddress(this.collectionId, addressObj);2145  }21462147  async getTop10TokenOwners(tokenId: number) {2148    return await this.helper.rft.getTokenTop10Owners(this.collectionId, tokenId);2149  }21502151  async getTokenBalance(tokenId: number, addressObj: ICrossAccountId) {2152    return await this.helper.rft.getTokenBalance(this.collectionId, tokenId, addressObj);2153  }21542155  async getTokenTotalPieces(tokenId: number) {2156    return await this.helper.rft.getTokenTotalPieces(this.collectionId, tokenId);2157  }21582159  async transferToken(signer: TSigner, tokenId: number, addressObj: ICrossAccountId, amount=1n) {2160    return await this.helper.rft.transferToken(signer, this.collectionId, tokenId, addressObj, amount);2161  }21622163  async transferTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2164    return await this.helper.rft.transferTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, toAddressObj, amount);2165  }21662167  async approveToken(signer: TSigner, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {2168    return await this.helper.rft.approveToken(signer, this.collectionId, tokenId, toAddressObj, amount);2169  }21702171  async getTokenApprovedPieces(tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2172    return await this.helper.rft.getTokenApprovedPieces(this.collectionId, tokenId, toAddressObj, fromAddressObj);2173  }21742175  async repartitionToken(signer: TSigner, tokenId: number, amount: bigint) {2176    return await this.helper.rft.repartitionToken(signer, this.collectionId, tokenId, amount);2177  }21782179  async mintToken(signer: TSigner, owner: ICrossAccountId, pieces=100n, properties?: IProperty[]) {2180    return await this.helper.rft.mintToken(signer, {collectionId: this.collectionId, owner, pieces, properties});2181  }21822183  async mintMultipleTokens(signer: TSigner, tokens: {owner: ICrossAccountId, pieces: bigint, properties?: IProperty[]}[]) {2184    return await this.helper.rft.mintMultipleTokens(signer, this.collectionId, tokens);2185  }21862187  async burnToken(signer: TSigner, tokenId: number, amount=1n) {2188    return await this.helper.rft.burnToken(signer, this.collectionId, tokenId, amount);2189  }21902191  async setTokenProperties(signer: TSigner, tokenId: number, properties: IProperty[]) {2192    return await this.helper.rft.setTokenProperties(signer, this.collectionId, tokenId, properties);2193  }21942195  async deleteTokenProperties(signer: TSigner, tokenId: number, propertyKeys: string[]) {2196    return await this.helper.rft.deleteTokenProperties(signer, this.collectionId, tokenId, propertyKeys);2197  }21982199  async setTokenPropertyPermissions(signer: TSigner, permissions: ITokenPropertyPermission[]) {2200    return await this.helper.rft.setTokenPropertyPermissions(signer, this.collectionId, permissions);2201  }2202}220322042205class UniqueFTCollection extends UniqueCollectionBase {2206  async mint(signer: TSigner, owner: ICrossAccountId, amount: bigint) {2207    return await this.helper.ft.mintTokens(signer, this.collectionId, owner, amount);2208  }22092210  async mintWithOneOwner(signer: TSigner, owner: ICrossAccountId, tokens: {value: bigint}[]) {2211    return await this.helper.ft.mintMultipleTokensWithOneOwner(signer, this.collectionId, owner, tokens);2212  }22132214  async getBalance(addressObj: ICrossAccountId) {2215    return await this.helper.ft.getBalance(this.collectionId, addressObj);2216  }22172218  async getTop10Owners() {2219    return await this.helper.ft.getTop10Owners(this.collectionId);2220  }22212222  async transfer(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2223    return await this.helper.ft.transfer(signer, this.collectionId, toAddressObj, amount);2224  }22252226  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2227    return await this.helper.ft.transferFrom(signer, this.collectionId, fromAddressObj, toAddressObj, amount);2228  }22292230  async burnTokens(signer: TSigner, amount=1n) {2231    return await this.helper.ft.burnTokens(signer, this.collectionId, amount);2232  }22332234  async burnTokensFrom(signer: TSigner, fromAddressObj: ICrossAccountId, amount=1n) {2235    return await this.helper.ft.burnTokensFrom(signer, this.collectionId, fromAddressObj, amount);2236  }22372238  async getTotalPieces() {2239    return await this.helper.ft.getTotalPieces(this.collectionId);2240  }22412242  async approveTokens(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2243    return await this.helper.ft.approveTokens(signer, this.collectionId, toAddressObj, amount);2244  }22452246  async getApprovedTokens(fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2247    return await this.helper.ft.getApprovedTokens(this.collectionId, fromAddressObj, toAddressObj);2248  }2249}225022512252class UniqueTokenBase implements IToken {2253  collection: UniqueNFTCollection | UniqueRFTCollection;2254  collectionId: number;2255  tokenId: number;22562257  constructor(tokenId: number, collection: UniqueNFTCollection | UniqueRFTCollection) {2258    this.collection = collection;2259    this.collectionId = collection.collectionId;2260    this.tokenId = tokenId;2261  }22622263  async getNextSponsored(addressObj: ICrossAccountId) {2264    return await this.collection.getTokenNextSponsored(this.tokenId, addressObj);2265  }22662267  async setProperties(signer: TSigner, properties: IProperty[]) {2268    return await this.collection.setTokenProperties(signer, this.tokenId, properties);2269  }22702271  async deleteProperties(signer: TSigner, propertyKeys: string[]) {2272    return await this.collection.deleteTokenProperties(signer, this.tokenId, propertyKeys);2273  }2274}227522762277class UniqueNFTToken extends UniqueTokenBase {2278  collection: UniqueNFTCollection;22792280  constructor(tokenId: number, collection: UniqueNFTCollection) {2281    super(tokenId, collection);2282    this.collection = collection;2283  }22842285  async getData(blockHashAt?: string) {2286    return await this.collection.getToken(this.tokenId, blockHashAt);2287  }22882289  async getOwner(blockHashAt?: string) {2290    return await this.collection.getTokenOwner(this.tokenId, blockHashAt);2291  }22922293  async getTopmostOwner(blockHashAt?: string) {2294    return await this.collection.getTokenTopmostOwner(this.tokenId, blockHashAt);2295  }22962297  async getChildren(blockHashAt?: string) {2298    return await this.collection.getTokenChildren(this.tokenId, blockHashAt);2299  }23002301  async nest(signer: TSigner, toTokenObj: IToken) {2302    return await this.collection.nestToken(signer, this.tokenId, toTokenObj);2303  }23042305  async unnest(signer: TSigner, fromTokenObj: IToken, toAddressObj: ICrossAccountId) {2306    return await this.collection.unnestToken(signer, this.tokenId, fromTokenObj, toAddressObj);2307  }23082309  async transfer(signer: TSigner, addressObj: ICrossAccountId) {2310    return await this.collection.transferToken(signer, this.tokenId, addressObj);2311  }23122313  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2314    return await this.collection.transferTokenFrom(signer, this.tokenId, fromAddressObj, toAddressObj);2315  }23162317  async approve(signer: TSigner, toAddressObj: ICrossAccountId) {2318    return await this.collection.approveToken(signer, this.tokenId, toAddressObj);2319  }23202321  async isApproved(toAddressObj: ICrossAccountId) {2322    return await this.collection.isTokenApproved(this.tokenId, toAddressObj);2323  }23242325  async burn(signer: TSigner) {2326    return await this.collection.burnToken(signer, this.tokenId);2327  }2328}23292330class UniqueRFTToken extends UniqueTokenBase {2331  collection: UniqueRFTCollection;23322333  constructor(tokenId: number, collection: UniqueRFTCollection) {2334    super(tokenId, collection);2335    this.collection = collection;2336  }23372338  async getTop10Owners() {2339    return await this.collection.getTop10TokenOwners(this.tokenId);2340  }23412342  async getBalance(addressObj: ICrossAccountId) {2343    return await this.collection.getTokenBalance(this.tokenId, addressObj);2344  }23452346  async getTotalPieces() {2347    return await this.collection.getTokenTotalPieces(this.tokenId);2348  }23492350  async transfer(signer: TSigner, addressObj: ICrossAccountId, amount=1n) {2351    return await this.collection.transferToken(signer, this.tokenId, addressObj, amount);2352  }23532354  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2355    return await this.collection.transferTokenFrom(signer, this.tokenId, fromAddressObj, toAddressObj, amount);2356  }23572358  async approve(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2359    return await this.collection.approveToken(signer, this.tokenId, toAddressObj, amount);2360  }23612362  async getApprovedPieces(fromAddressObj: ICrossAccountId, toAccountObj: ICrossAccountId) {2363    return await this.collection.getTokenApprovedPieces(this.tokenId, fromAddressObj, toAccountObj);2364  }23652366  async repartition(signer: TSigner, amount: bigint) {2367    return await this.collection.repartitionToken(signer, this.tokenId, amount);2368  }23692370  async burn(signer: TSigner, amount=1n) {2371    return await this.collection.burnToken(signer, this.tokenId, amount);2372  }2373}