git.delta.rocks / unique-network / refs/commits / 8e8f09e20e76

1![Docker build](https://github.com/usetech-llc/nft_parachain/workflows/Docker%20build/badge.svg)23# NFT Parachain45## Project Description67The NFT Pallet is the core of NFT functionality. Like ERC-721 standard in Ethereum ecosystem, this pallet provides the basement for creating collections of unique non-divisible things, also called Non Fungible Tokens (NFTs), minting NFT of a given Collection, and managing their ownership.89The pallet also enables storing NFT properties. Though (according to ERC-721) NFT properties belong to logic of a concrete application that operates a Collection, so purposefully the NFT Tracking Module does not have any knowledge about properties except their byte size leaving application logic out to be controlled by Smart Contracts.1011The NFT Chain also provides:1213* Smart Contracts Pallet and example smart contract that interacts with NFT Runtime14* ERC-1155 Functionality (currently PoC as Re-Fungible tokens, i.e. items that are still unique, but that can be split between multiple users)15* Variety of economic options for dapp producers to choose from to create freemium games and other ways to attract users. As a step one, we implemented an economic model when a collection sponsor can be set to pay for collection Transfer transactions.1617Wider NFT Ecosystem (most of it was developed during Hackusama):18* [SubstraPunks Game hosted on IPFS](https://github.com/usetech-llc/substrapunks)19* [NFT Wallet and UI](https://uniqueapps.usetech.com/#/nft)20* [NFT Asset for Unity Framework](https://github.com/usetech-llc/nft_unity)2122Please see our [walk-thorugh instructions](doc/hackusama_walk_through.md) to try everything out!2324## Hackusama Update2526During the Kusama Hackaphon the following changes were made:27* Enabled Smart Contracts Pallet28* Enabled integration between Smart Contracts and NFT Pallet (required special edition of RC4 Substrate version)29* Fixed misc. bugs in NFT Pallet30* Deployed NFT TestNet. Public node available at wss://unique.usetech.com, custom UI types - see below in this README.31* New Features:32  * Re-Fungible Token Mode33  * Off-Chain Schema to store token image URLs34  * Alternative economic model35  * White Lists and Public Mint Permission36* Use example: [SubstraPunks Game](https://github.com/usetech-llc/substrapunks), fully hosted on IPFS and NFT Testnet Blockchain.3738## Application Development3940If you are building an application that operates NFT tokens, use [this document](doc/application_development.md).4142## Building4344Building NFT chain requires special versions of Rust and toolchain. We don't use the most recent versions of everything so that we can keep the builds stable.45461. Install Rust:4748```bash49curl https://sh.rustup.rs -sSf | sh50sudo apt-get install libssl-dev pkg-config libclang-dev clang51```52532. Remove all installed toolchains with `rustup toolchain list` and `rustup toolchain uninstall <toolchain>`.54553. Install Rust Toolchain 1.44.0:5657```bash58rustup install 1.44.059```60614. Make it default (actual toochain version may be different, so do a `rustup toolchain list` first)62```bash63rustup toolchain list64rustup default 1.44.0-x86_64-unknown-linux-gnu65```66675. Install nightly toolchain and add wasm target for it:6869```bash70rustup toolchain install nightly-2020-05-0171rustup target add wasm32-unknown-unknown --toolchain nightly-2020-05-01-x86_64-unknown-linux-gnu72```73746. Build:75```bash76cargo build77```7879## Run8081You can start a development chain with:8283```bash84cargo run -- --dev85```8687Detailed logs may be shown by running the node with the following environment variables set: `RUST_LOG=debug RUST_BACKTRACE=1 cargo run -- --dev`.8889If you want to see the multi-node consensus algorithm in action locally, then you can create a local testnet with two validator nodes for Alice and Bob, who are the initial authorities of the genesis chain that have been endowed with testnet units. Give each node a name and expose them so they are listed on the Polkadot [telemetry site](https://telemetry.polkadot.io/#/Local%20Testnet). You'll need two terminal windows open.9091We'll start Alice's substrate node first on default TCP port 30333 with her chain database stored locally at `/tmp/alice`. The bootnode ID of her node is `QmQZ8TjTqeDj3ciwr93EJ95hxfDsb9pEYDizUAbWpigtQN`, which is generated from the `--node-key` value that we specify below:9293```bash94cargo run -- \95  --base-path /tmp/alice \96  --chain=local \97  --alice \98  --node-key 0000000000000000000000000000000000000000000000000000000000000001 \99  --telemetry-url ws://telemetry.polkadot.io:1024 \100  --validator101```102103In the second terminal, we'll start Bob's substrate node on a different TCP port of 30334, and with his chain database stored locally at `/tmp/bob`. We'll specify a value for the `--bootnodes` option that will connect his node to Alice's bootnode ID on TCP port 30333:104105```bash106cargo run -- \107  --base-path /tmp/bob \108  --bootnodes /ip4/127.0.0.1/tcp/30333/p2p/QmQZ8TjTqeDj3ciwr93EJ95hxfDsb9pEYDizUAbWpigtQN \109  --chain=local \110  --bob \111  --port 30334 \112  --telemetry-url ws://telemetry.polkadot.io:1024 \113  --validator114```115116Additional CLI usage options are available and may be shown by running `cargo run -- --help`.117118## Benchmarks119120First of all, add rust toolchain and make it default.121rustup target add wasm32-unknown-unknown --toolchain nightly-2020-10-01122123Then in "/node/src" run build command below124cargo +nightly-2020-10-01 build --release --features runtime-benchmarks125126Run benchmark127target/release/nft benchmark --chain dev --pallet "pallet_nft" --extrinsic "*" --repeat 1128129## UI custom types130```131{132  "Schedule": {133    "version": "u32",134    "put_code_per_byte_cost": "Gas",135    "grow_mem_cost": "Gas",136    "regular_op_cost": "Gas",137    "return_data_per_byte_cost": "Gas",138    "event_data_per_byte_cost": "Gas",139    "event_per_topic_cost": "Gas",140    "event_base_cost": "Gas",141    "call_base_cost": "Gas",142    "instantiate_base_cost": "Gas",143    "dispatch_base_cost": "Gas",144    "sandbox_data_read_cost": "Gas",145    "sandbox_data_write_cost": "Gas",146    "transfer_cost": "Gas",147    "instantiate_cost": "Gas",148    "max_event_topics": "u32",149    "max_stack_height": "u32",150    "max_memory_pages": "u32",151    "max_table_size": "u32",152    "enable_println": "bool",153    "max_subject_len": "u32"154  },155  "AccessMode": {156    "_enum": [157      "Normal",158      "WhiteList"159    ]160  },161  "CollectionMode": {162    "_enum": {163      "Invalid": null,164      "NFT": "u32",165      "Fungible": "u32",166      "ReFungible": "(u32, u32)"167    }168  },169  "Ownership": {170    "Owner": "AccountId",171    "Fraction": "u128"172  },173  "FungibleItemType": {174    "Collection": "u64",175    "Owner": "AccountId",176    "Value": "u128"177  },178  "ReFungibleItemType": {179    "Collection": "u64",180    "Owner": "Vec<Ownership>",181    "Data": "Vec<u8>"182  },183  "NftItemType": {184    "Collection": "u64",185    "Owner": "AccountId",186    "Data": "Vec<u8>"187  },188  "Ownership": {189    "owner": "AccountId",190    "fraction": "u128"191  },192  "ReFungibleItemType": {193    "Collection": "u64",194    "Owner": "Vec<Ownership<AccountId>>",195    "Data": "Vec<u8>"196  },197  "CollectionType": {198    "Owner": "AccountId",199    "Mode": "CollectionMode",200    "Access": "AccessMode",201    "DecimalPoints": "u32",202    "Name": "Vec<u16>",203    "Description": "Vec<u16>",204    "TokenPrefix": "Vec<u8>",205    "CustomDataSize": "u32",206    "MintMode": "bool",207    "OffchainSchema": "Vec<u8>",208    "Sponsor": "AccountId",209    "UnconfirmedSponsor": "AccountId"210  },211  "ApprovePermissions": {212    "Approved": "AccountId",213    "Amount": "u64"214  },215  "RawData": "Vec<u8>",216  "Address": "AccountId",217  "LookupSource": "AccountId",218  "Weight": "u64"219}220221```