difftreelog
Add economic model POC
in: master
5 files changed
Cargo.lockdiffbeforeafterboth--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3085,10 +3085,12 @@
dependencies = [
"frame-support",
"frame-system",
+ "pallet-transaction-payment",
"parity-scale-codec",
"sp-core",
"sp-io",
"sp-runtime",
+ "sp-std",
]
[[package]]
doc/application_development.mddiffbeforeafterboth--- a/doc/application_development.md
+++ b/doc/application_development.md
@@ -16,6 +16,54 @@
+## Custom Types for JS API
+
+```
+{
+ "Schedule": {
+ "version": "u32",
+ "put_code_per_byte_cost": "Gas",
+ "grow_mem_cost": "Gas",
+ "regular_op_cost": "Gas",
+ "return_data_per_byte_cost": "Gas",
+ "event_data_per_byte_cost": "Gas",
+ "event_per_topic_cost": "Gas",
+ "event_base_cost": "Gas",
+ "call_base_cost": "Gas",
+ "instantiate_base_cost": "Gas",
+ "dispatch_base_cost": "Gas",
+ "sandbox_data_read_cost": "Gas",
+ "sandbox_data_write_cost": "Gas",
+ "transfer_cost": "Gas",
+ "instantiate_cost": "Gas",
+ "max_event_topics": "u32",
+ "max_stack_height": "u32",
+ "max_memory_pages": "u32",
+ "max_table_size": "u32",
+ "enable_println": "bool",
+ "max_subject_len": "u32"
+ },
+ "NftItemType": {
+ "Collection": "u64",
+ "Owner": "AccountId",
+ "Data": "Vec<u8>"
+ },
+ "CollectionType": {
+ "Owner": "AccountId",
+ "NextItemId": "u64",
+ "Name": "Vec<u16>",
+ "Description": "Vec<u16>",
+ "TokenPrefix": "Vec<u8>",
+ "CustomDataSize": "u32",
+ "Sponsor": "AccountId",
+ "UnconfirmedSponsor": "AccountId"
+ },
+ "Address": "AccountId",
+ "LookupSource": "AccountId",
+ "Weight": "u64"
+}
+```
+
## NFT Palette Methods
### Collection Management
pallets/nft/Cargo.tomldiffbeforeafterboth--- a/pallets/nft/Cargo.toml
+++ b/pallets/nft/Cargo.toml
@@ -33,6 +33,19 @@
branch = 'rc4_ext_dispatch_reenabled'
version = '2.0.0-rc4'
+[dependencies.sp-std]
+default-features = false
+git = 'https://github.com/usetech-llc/substrate.git'
+branch = 'rc4_ext_dispatch_reenabled'
+version = '2.0.0-rc4'
+
+[dependencies.transaction-payment]
+default-features = false
+git = 'https://github.com/usetech-llc/substrate.git'
+package = 'pallet-transaction-payment'
+branch = 'rc4_ext_dispatch_reenabled'
+version = '2.0.0-rc4'
+
[package]
authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>']
description = 'FRAME pallet nft'
@@ -52,4 +65,5 @@
'frame-support/std',
'frame-system/std',
'sp-runtime/std',
+ 'sp-std/std',
]
pallets/nft/src/lib.rsdiffbeforeafterboth--- a/pallets/nft/src/lib.rs
+++ b/pallets/nft/src/lib.rs
@@ -9,9 +9,32 @@
/// For more guidance on Substrate FRAME, see the example pallet
/// https://github.com/paritytech/substrate/blob/master/frame/example/src/lib.rs
-use frame_support::{decl_event, decl_module, decl_storage, dispatch::DispatchResult, ensure};
+pub use frame_support::{
+ decl_event, decl_module, decl_storage,
+ construct_runtime, parameter_types,
+ traits::{Currency, Get, ExistenceRequirement, KeyOwnerProofSystem, OnUnbalanced, Randomness, WithdrawReason, Imbalance},
+ weights::{
+ DispatchInfo, PostDispatchInfo, constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
+ IdentityFee, Weight, WeightToFeePolynomial, GetDispatchInfo, Pays,
+ },
+ StorageValue,
+ dispatch::DispatchResult,
+ IsSubType,
+ ensure
+};
+
use frame_system::{self as system, ensure_signed};
use sp_runtime::sp_std::prelude::Vec;
+use sp_std::prelude::*;
+use sp_runtime::{
+ FixedU128, FixedPointOperand,
+ transaction_validity::{
+ TransactionPriority, ValidTransaction, InvalidTransaction, TransactionValidityError, TransactionValidity
+ },
+ traits::{
+ Saturating, Dispatchable, DispatchInfoOf, PostDispatchInfoOf, SignedExtension, Zero, SaturatedConversion,
+ },
+};
#[cfg(test)]
mod mock;
@@ -28,6 +51,8 @@
pub description: Vec<u16>, // 256 include null escape char
pub token_prefix: Vec<u8>, // 16 include null escape char
pub custom_data_size: u32,
+ pub sponsor: AccountId, // Who pays fees. If set to default address, the fees are applied to the transaction sender
+ pub unconfirmed_sponsor: AccountId, // Sponsor address that has not yet confirmed sponsorship
}
#[derive(Encode, Decode, Default, Clone, PartialEq)]
@@ -51,6 +76,7 @@
/// The overarching event type.
type Event: From<Event<Self>> + Into<<Self as system::Trait>::Event>;
+
}
// This pallet's storage items.
@@ -138,6 +164,8 @@
token_prefix: prefix,
next_item_id: next_id,
custom_data_size: custom_data_sz,
+ sponsor: T::AccountId::default(),
+ unconfirmed_sponsor: T::AccountId::default(),
};
// Add new collection to map
@@ -237,6 +265,54 @@
}
#[weight = 0]
+ pub fn set_collection_sponsor(origin, collection_id: u64, new_sponsor: T::AccountId) -> DispatchResult {
+
+ let sender = ensure_signed(origin)?;
+ ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");
+
+ let mut target_collection = <Collection<T>>::get(collection_id);
+ ensure!(sender == target_collection.owner, "You do not own this collection");
+
+ target_collection.unconfirmed_sponsor = new_sponsor;
+ <Collection<T>>::insert(collection_id, target_collection);
+
+ Ok(())
+ }
+
+ #[weight = 0]
+ pub fn confirm_sponsorship(origin, collection_id: u64) -> DispatchResult {
+
+ let sender = ensure_signed(origin)?;
+ ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");
+
+ let mut target_collection = <Collection<T>>::get(collection_id);
+ ensure!(sender == target_collection.unconfirmed_sponsor, "This address is not set as sponsor, use setCollectionSponsor first");
+
+ target_collection.sponsor = target_collection.unconfirmed_sponsor;
+ target_collection.unconfirmed_sponsor = T::AccountId::default();
+ <Collection<T>>::insert(collection_id, target_collection);
+
+ Ok(())
+ }
+
+ #[weight = 0]
+ pub fn remove_collection_sponsor(origin, collection_id: u64) -> DispatchResult {
+
+ let sender = ensure_signed(origin)?;
+ ensure!(<Collection<T>>::contains_key(collection_id), "This collection does not exist");
+
+ let mut target_collection = <Collection<T>>::get(collection_id);
+ ensure!(sender == target_collection.owner, "You do not own this collection");
+
+ target_collection.sponsor = T::AccountId::default();
+ <Collection<T>>::insert(collection_id, target_collection);
+
+ Ok(())
+ }
+
+
+
+ #[weight = 0]
pub fn create_item(origin, collection_id: u64, properties: Vec<u8>) -> DispatchResult {
let sender = ensure_signed(origin)?;
@@ -490,3 +566,185 @@
Ok(())
}
}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Economic models
+
+/// Fee multiplier.
+pub type Multiplier = FixedU128;
+
+type BalanceOf<T> =
+ <<T as transaction_payment::Trait>::Currency as Currency<<T as system::Trait>::AccountId>>::Balance;
+type NegativeImbalanceOf<T> = <<T as transaction_payment::Trait>::Currency as Currency<
+ <T as system::Trait>::AccountId,>>::NegativeImbalance;
+
+
+
+/// Require the transactor pay for themselves and maybe include a tip to gain additional priority
+/// in the queue.
+#[derive(Encode, Decode, Clone, Eq, PartialEq)]
+pub struct ChargeTransactionPayment<T: transaction_payment::Trait + Send + Sync>(#[codec(compact)] BalanceOf<T>);
+
+impl<T:Trait + transaction_payment::Trait + Send + Sync> sp_std::fmt::Debug for ChargeTransactionPayment<T> {
+ #[cfg(feature = "std")]
+ fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
+ write!(f, "ChargeTransactionPayment<{:?}>", self.0)
+ }
+ #[cfg(not(feature = "std"))]
+ fn fmt(&self, _: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
+ Ok(())
+ }
+}
+
+impl<T:Trait + transaction_payment::Trait + Send + Sync> ChargeTransactionPayment<T> where
+ T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo> + IsSubType<Module<T>, T>,
+ BalanceOf<T>: Send + Sync + FixedPointOperand,
+{
+ /// utility constructor. Used only in client/factory code.
+ pub fn from(fee: BalanceOf<T>) -> Self {
+ Self(fee)
+ }
+
+ pub fn traditional_fee(
+ len: usize,
+ info: &DispatchInfoOf<T::Call>,
+ tip: BalanceOf<T>,
+ ) -> BalanceOf<T> where
+ T::Call: Dispatchable<Info=DispatchInfo>,
+ {
+ <transaction_payment::Module<T>>::compute_fee(len as u32, info, tip)
+ }
+
+ fn withdraw_fee(
+ &self,
+ who: &T::AccountId,
+ call: &T::Call,
+ info: &DispatchInfoOf<T::Call>,
+ len: usize,
+ ) -> Result<(BalanceOf<T>, Option<NegativeImbalanceOf<T>>), TransactionValidityError> {
+ let tip = self.0;
+
+ // Set fee based on call type. Creating collection costs 1 Unique.
+ // All other transactions have traditional fees so far
+ let fee = match call.is_sub_type() {
+ Some(Call::create_collection(..)) => <BalanceOf<T>>::from(1_000_000_000),
+ _ => Self::traditional_fee(len, info, tip)
+
+ // Flat fee model, use only for testing purposes
+ // _ => <BalanceOf<T>>::from(100)
+ };
+
+ // Determine who is paying transaction fee based on ecnomic model
+ // Parse call to extract collection ID and access collection sponsor
+ let sponsor: T::AccountId = match call.is_sub_type() {
+ Some(Call::create_item(collection_id, _properties)) => {
+ <Collection<T>>::get(collection_id).sponsor
+ },
+ Some(Call::transfer(collection_id, _item_id, _new_owner)) => {
+ <Collection<T>>::get(collection_id).sponsor
+ },
+
+ _ => T::AccountId::default()
+ };
+
+ let mut who_pays_fee: T::AccountId = sponsor.clone();
+ if sponsor == T::AccountId::default() {
+ who_pays_fee = who.clone();
+ }
+
+ // Only mess with balances if fee is not zero.
+ if fee.is_zero() {
+ return Ok((fee, None));
+ }
+
+ match <T as transaction_payment::Trait>::Currency::withdraw(
+ &who_pays_fee,
+ fee,
+ if tip.is_zero() {
+ WithdrawReason::TransactionPayment.into()
+ } else {
+ WithdrawReason::TransactionPayment | WithdrawReason::Tip
+ },
+ ExistenceRequirement::KeepAlive,
+ ) {
+ Ok(imbalance) => Ok((fee, Some(imbalance))),
+ Err(_) => Err(InvalidTransaction::Payment.into()),
+ }
+ }
+}
+
+impl<T:Trait + transaction_payment::Trait + Send + Sync> SignedExtension for ChargeTransactionPayment<T> where
+ BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,
+ T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo> + IsSubType<Module<T>, T>,
+{
+ const IDENTIFIER: &'static str = "ChargeTransactionPayment";
+ type AccountId = T::AccountId;
+ type Call = T::Call;
+ type AdditionalSigned = ();
+ type Pre = (BalanceOf<T>, Self::AccountId, Option<NegativeImbalanceOf<T>>, BalanceOf<T>);
+ fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> { Ok(()) }
+
+ fn validate(
+ &self,
+ who: &Self::AccountId,
+ call: &Self::Call,
+ info: &DispatchInfoOf<Self::Call>,
+ len: usize,
+ ) -> TransactionValidity {
+ let (fee, _) = self.withdraw_fee(who, call, info, len)?;
+
+ let mut r = ValidTransaction::default();
+ // NOTE: we probably want to maximize the _fee (of any type) per weight unit_ here, which
+ // will be a bit more than setting the priority to tip. For now, this is enough.
+ r.priority = fee.saturated_into::<TransactionPriority>();
+ Ok(r)
+ }
+
+ fn pre_dispatch(
+ self,
+ who: &Self::AccountId,
+ call: &Self::Call,
+ info: &DispatchInfoOf<Self::Call>,
+ len: usize
+ ) -> Result<Self::Pre, TransactionValidityError> {
+ let (fee, imbalance) = self.withdraw_fee(who, call, info, len)?;
+ Ok((self.0, who.clone(), imbalance, fee))
+ }
+
+ fn post_dispatch(
+ pre: Self::Pre,
+ info: &DispatchInfoOf<Self::Call>,
+ post_info: &PostDispatchInfoOf<Self::Call>,
+ len: usize,
+ _result: &DispatchResult,
+ ) -> Result<(), TransactionValidityError> {
+ let (tip, who, imbalance, fee) = pre;
+ if let Some(payed) = imbalance {
+ let actual_fee = <transaction_payment::Module<T>>::compute_actual_fee(
+ len as u32,
+ info,
+ post_info,
+ tip,
+ );
+ let refund = fee.saturating_sub(actual_fee);
+ let actual_payment = match <T as transaction_payment::Trait>::Currency::deposit_into_existing(&who, refund) {
+ Ok(refund_imbalance) => {
+ // The refund cannot be larger than the up front payed max weight.
+ // `PostDispatchInfo::calc_unspent` guards against such a case.
+ match payed.offset(refund_imbalance) {
+ Ok(actual_payment) => actual_payment,
+ Err(_) => return Err(InvalidTransaction::Payment.into()),
+ }
+ }
+ // We do not recreate the account using the refund. The up front payment
+ // is gone in that case.
+ Err(_) => payed,
+ };
+ let imbalances = actual_payment.split(tip);
+ <T as transaction_payment::Trait>::OnTransactionPayment::on_unbalanceds(Some(imbalances.0).into_iter()
+ .chain(Some(imbalances.1)));
+ }
+ Ok(())
+ }
+}
runtime/src/lib.rsdiffbeforeafterboth1//! The Substrate Node Template runtime. This can be compiled with `#[no_std]`, ready for Wasm.23#![cfg_attr(not(feature = "std"), no_std)]4// `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.5#![recursion_limit = "256"]67// Make the WASM binary available.8#[cfg(feature = "std")]9include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));1011use contracts_rpc_runtime_api::ContractExecResult;12use grandpa::fg_primitives;13use grandpa::{AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};14use sp_api::impl_runtime_apis;15use sp_consensus_aura::sr25519::AuthorityId as AuraId;16use sp_core::{crypto::KeyTypeId, OpaqueMetadata};17use sp_runtime::traits::{18 BlakeTwo256, Block as BlockT, IdentifyAccount, IdentityLookup, NumberFor, Saturating, Verify,19};20use sp_runtime::{21 create_runtime_str, generic, impl_opaque_keys,22 transaction_validity::{TransactionSource, TransactionValidity},23 ApplyExtrinsicResult, MultiSignature,24};25use sp_std::prelude::*;26#[cfg(feature = "std")]27use sp_version::NativeVersion;28use sp_version::RuntimeVersion;2930// A few exports that help ease life for downstream crates.31pub use balances::Call as BalancesCall;32pub use contracts::Schedule as ContractsSchedule;33pub use frame_support::{34 construct_runtime, parameter_types,35 traits::{KeyOwnerProofSystem, Randomness},36 weights::{37 constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},38 IdentityFee, Weight,39 },40 StorageValue,41};42#[cfg(any(feature = "std", test))]43pub use sp_runtime::BuildStorage;44pub use sp_runtime::{Perbill, Permill};45pub use timestamp::Call as TimestampCall;4647/// Importing a nft pallet48pub use nft;4950/// An index to a block.51pub type BlockNumber = u32;5253/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.54pub type Signature = MultiSignature;5556/// Some way of identifying an account on the chain. We intentionally make it equivalent57/// to the public key of our transaction signing scheme.58pub type AccountId = <<Signature as Verify>::Signer as IdentifyAccount>::AccountId;5960/// The type for looking up accounts. We don't expect more than 4 billion of them, but you61/// never know...62pub type AccountIndex = u32;6364/// Balance of an account.65pub type Balance = u128;6667/// Index of a transaction in the chain.68pub type Index = u32;6970/// A hash of some data used by the chain.71pub type Hash = sp_core::H256;7273/// Digest item type.74pub type DigestItem = generic::DigestItem<Hash>;7576/// Opaque types. These are used by the CLI to instantiate machinery that don't need to know77/// the specifics of the runtime. They can then be made to be agnostic over specific formats78/// of data like extrinsics, allowing for them to continue syncing the network through upgrades79/// to even the core data structures.80pub mod opaque {81 use super::*;8283 pub use sp_runtime::OpaqueExtrinsic as UncheckedExtrinsic;8485 /// Opaque block header type.86 pub type Header = generic::Header<BlockNumber, BlakeTwo256>;87 /// Opaque block type.88 pub type Block = generic::Block<Header, UncheckedExtrinsic>;89 /// Opaque block identifier type.90 pub type BlockId = generic::BlockId<Block>;9192 impl_opaque_keys! {93 pub struct SessionKeys {94 pub aura: Aura,95 pub grandpa: Grandpa,96 }97 }98}99100/// This runtime version.101pub const VERSION: RuntimeVersion = RuntimeVersion {102 spec_name: create_runtime_str!("nft"),103 impl_name: create_runtime_str!("nft"),104 authoring_version: 1,105 spec_version: 1,106 impl_version: 1,107 apis: RUNTIME_API_VERSIONS,108 transaction_version: 1,109};110111pub const MILLISECS_PER_BLOCK: u64 = 6000;112113pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;114115// These time units are defined in number of blocks.116pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);117pub const HOURS: BlockNumber = MINUTES * 60;118pub const DAYS: BlockNumber = HOURS * 24;119120/// The version information used to identify this runtime when compiled natively.121#[cfg(feature = "std")]122pub fn native_version() -> NativeVersion {123 NativeVersion {124 runtime_version: VERSION,125 can_author_with: Default::default(),126 }127}128129parameter_types! {130 pub const BlockHashCount: BlockNumber = 2400;131 /// We allow for 2 seconds of compute with a 6 second average block time.132 pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;133 pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);134 /// Assume 10% of weight for average on_initialize calls.135 pub MaximumExtrinsicWeight: Weight = AvailableBlockRatio::get()136 .saturating_sub(Perbill::from_percent(10)) * MaximumBlockWeight::get();137 pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;138 pub const Version: RuntimeVersion = VERSION;139}140141impl system::Trait for Runtime {142 /// The basic call filter to use in dispatchable.143 type BaseCallFilter = ();144 /// The identifier used to distinguish between accounts.145 type AccountId = AccountId;146 /// The aggregated dispatch type that is available for extrinsics.147 type Call = Call;148 /// The lookup mechanism to get account ID from whatever is passed in dispatchers.149 type Lookup = IdentityLookup<AccountId>;150 /// The index type for storing how many extrinsics an account has signed.151 type Index = Index;152 /// The index type for blocks.153 type BlockNumber = BlockNumber;154 /// The type for hashing blocks and tries.155 type Hash = Hash;156 /// The hashing algorithm used.157 type Hashing = BlakeTwo256;158 /// The header type.159 type Header = generic::Header<BlockNumber, BlakeTwo256>;160 /// The ubiquitous event type.161 type Event = Event;162 /// The ubiquitous origin type.163 type Origin = Origin;164 /// Maximum number of block number to block hash mappings to keep (oldest pruned first).165 type BlockHashCount = BlockHashCount;166 /// Maximum weight of each block.167 type MaximumBlockWeight = MaximumBlockWeight;168 /// The weight of database operations that the runtime can invoke.169 type DbWeight = RocksDbWeight;170 /// The weight of the overhead invoked on the block import process, independent of the171 /// extrinsics included in that block.172 type BlockExecutionWeight = BlockExecutionWeight;173 /// The base weight of any extrinsic processed by the runtime, independent of the174 /// logic of that extrinsic. (Signature verification, nonce increment, fee, etc...)175 type ExtrinsicBaseWeight = ExtrinsicBaseWeight;176 /// The maximum weight that a single extrinsic of `Normal` dispatch class can have,177 /// idependent of the logic of that extrinsics. (Roughly max block weight - average on178 /// initialize cost).179 type MaximumExtrinsicWeight = MaximumExtrinsicWeight;180 /// Maximum size of all encoded transactions (in bytes) that are allowed in one block.181 type MaximumBlockLength = MaximumBlockLength;182 /// Portion of the block weight that is available to all normal transactions.183 type AvailableBlockRatio = AvailableBlockRatio;184 /// Version of the runtime.185 type Version = Version;186 /// Converts a module to the index of the module in `construct_runtime!`.187 ///188 /// This type is being generated by `construct_runtime!`.189 type ModuleToIndex = ModuleToIndex;190 /// What to do if a new account is created.191 type OnNewAccount = ();192 /// What to do if an account is fully reaped from the system.193 type OnKilledAccount = ();194 /// The data to be stored in an account.195 type AccountData = balances::AccountData<Balance>;196}197198impl aura::Trait for Runtime {199 type AuthorityId = AuraId;200}201202impl grandpa::Trait for Runtime {203 type Event = Event;204 type Call = Call;205206 type KeyOwnerProofSystem = ();207208 type KeyOwnerProof =209 <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(KeyTypeId, GrandpaId)>>::Proof;210211 type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(212 KeyTypeId,213 GrandpaId,214 )>>::IdentificationTuple;215216 type HandleEquivocation = ();217}218219parameter_types! {220 pub const MinimumPeriod: u64 = SLOT_DURATION / 2;221}222223impl timestamp::Trait for Runtime {224 /// A timestamp: milliseconds since the unix epoch.225 type Moment = u64;226 type OnTimestampSet = Aura;227 type MinimumPeriod = MinimumPeriod;228}229230parameter_types! {231 pub const ExistentialDeposit: u128 = 500;232}233234impl balances::Trait for Runtime {235 /// The type for recording an account's balance.236 type Balance = Balance;237 /// The ubiquitous event type.238 type Event = Event;239 type DustRemoval = ();240 type ExistentialDeposit = ExistentialDeposit;241 type AccountStore = System;242}243244pub const MILLICENTS: Balance = 1_000_000_000;245pub const CENTS: Balance = 1_000 * MILLICENTS;246pub const DOLLARS: Balance = 100 * CENTS;247248parameter_types! {249 pub const TombstoneDeposit: Balance = 16 * MILLICENTS;250 pub const RentByteFee: Balance = 4 * MILLICENTS;251 pub const RentDepositOffset: Balance = 1000 * MILLICENTS;252 pub const SurchargeReward: Balance = 150 * MILLICENTS;253}254255impl contracts::Trait for Runtime {256 type Call = Call;257 type Time = Timestamp;258 type Randomness = RandomnessCollectiveFlip;259 type Currency = Balances;260 type Event = Event;261 type DetermineContractAddress = contracts::SimpleAddressDeterminer<Runtime>;262 type TrieIdGenerator = contracts::TrieIdFromParentCounter<Runtime>;263 type RentPayment = ();264 type SignedClaimHandicap = contracts::DefaultSignedClaimHandicap;265 type TombstoneDeposit = TombstoneDeposit;266 type StorageSizeOffset = contracts::DefaultStorageSizeOffset;267 type RentByteFee = RentByteFee;268 type RentDepositOffset = RentDepositOffset;269 type SurchargeReward = SurchargeReward;270 type MaxDepth = contracts::DefaultMaxDepth;271 type MaxValueSize = contracts::DefaultMaxValueSize;272 type WeightPrice = transaction_payment::Module<Self>;273}274275parameter_types! {276 pub const TransactionByteFee: Balance = 1;277}278279impl transaction_payment::Trait for Runtime {280 type Currency = balances::Module<Runtime>;281 type OnTransactionPayment = ();282 type TransactionByteFee = TransactionByteFee;283 type WeightToFee = IdentityFee<Balance>;284 type FeeMultiplierUpdate = ();285}286287impl sudo::Trait for Runtime {288 type Event = Event;289 type Call = Call;290}291292/// Used for the module nft in `./nft.rs`293impl nft::Trait for Runtime {294 type Event = Event;295}296297construct_runtime!(298 pub enum Runtime where299 Block = Block,300 NodeBlock = opaque::Block,301 UncheckedExtrinsic = UncheckedExtrinsic302 {303 System: system::{Module, Call, Config, Storage, Event<T>},304 RandomnessCollectiveFlip: randomness_collective_flip::{Module, Call, Storage},305 Contracts: contracts::{Module, Call, Config, Storage, Event<T>},306 Timestamp: timestamp::{Module, Call, Storage, Inherent},307 Aura: aura::{Module, Config<T>, Inherent(Timestamp)},308 Grandpa: grandpa::{Module, Call, Storage, Config, Event},309 Balances: balances::{Module, Call, Storage, Config<T>, Event<T>},310 TransactionPayment: transaction_payment::{Module, Storage},311 Sudo: sudo::{Module, Call, Config<T>, Storage, Event<T>},312 Nft: nft::{Module, Call, Storage, Event<T>},313 }314);315316/// The address format for describing accounts.317pub type Address = AccountId;318/// Block header type as expected by this runtime.319pub type Header = generic::Header<BlockNumber, BlakeTwo256>;320/// Block type as expected by this runtime.321pub type Block = generic::Block<Header, UncheckedExtrinsic>;322/// A Block signed with a Justification323pub type SignedBlock = generic::SignedBlock<Block>;324/// BlockId type as expected by this runtime.325pub type BlockId = generic::BlockId<Block>;326/// The SignedExtension to the basic transaction logic.327pub type SignedExtra = (328 system::CheckSpecVersion<Runtime>,329 system::CheckTxVersion<Runtime>,330 system::CheckGenesis<Runtime>,331 system::CheckEra<Runtime>,332 system::CheckNonce<Runtime>,333 system::CheckWeight<Runtime>,334 transaction_payment::ChargeTransactionPayment<Runtime>,335);336/// Unchecked extrinsic type as expected by this runtime.337pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;338/// Extrinsic type that has already been checked.339pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;340/// Executive: handles dispatch to the various modules.341pub type Executive =342 frame_executive::Executive<Runtime, Block, system::ChainContext<Runtime>, Runtime, AllModules>;343344impl_runtime_apis! {345346 impl contracts_rpc_runtime_api::ContractsApi<Block, AccountId, Balance, BlockNumber>347 for Runtime348 {349 fn call(350 origin: AccountId,351 dest: AccountId,352 value: Balance,353 gas_limit: u64,354 input_data: Vec<u8>,355 ) -> ContractExecResult {356 let exec_result =357 Contracts::bare_call(origin, dest.into(), value, gas_limit, input_data);358 match exec_result {359 Ok(v) => ContractExecResult::Success {360 status: v.status,361 data: v.data,362 },363 Err(_) => ContractExecResult::Error,364 }365 }366367 fn get_storage(368 address: AccountId,369 key: [u8; 32],370 ) -> contracts_primitives::GetStorageResult {371 Contracts::get_storage(address, key)372 }373374 fn rent_projection(375 address: AccountId,376 ) -> contracts_primitives::RentProjectionResult<BlockNumber> {377 Contracts::rent_projection(address)378 }379 }380381 impl sp_api::Core<Block> for Runtime {382 fn version() -> RuntimeVersion {383 VERSION384 }385386 fn execute_block(block: Block) {387 Executive::execute_block(block)388 }389390 fn initialize_block(header: &<Block as BlockT>::Header) {391 Executive::initialize_block(header)392 }393 }394395 impl sp_api::Metadata<Block> for Runtime {396 fn metadata() -> OpaqueMetadata {397 Runtime::metadata().into()398 }399 }400401 impl sp_block_builder::BlockBuilder<Block> for Runtime {402 fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyExtrinsicResult {403 Executive::apply_extrinsic(extrinsic)404 }405406 fn finalize_block() -> <Block as BlockT>::Header {407 Executive::finalize_block()408 }409410 fn inherent_extrinsics(data: sp_inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {411 data.create_extrinsics()412 }413414 fn check_inherents(415 block: Block,416 data: sp_inherents::InherentData,417 ) -> sp_inherents::CheckInherentsResult {418 data.check_extrinsics(&block)419 }420421 fn random_seed() -> <Block as BlockT>::Hash {422 RandomnessCollectiveFlip::random_seed()423 }424 }425426 impl sp_transaction_pool::runtime_api::TaggedTransactionQueue<Block> for Runtime {427 fn validate_transaction(428 source: TransactionSource,429 tx: <Block as BlockT>::Extrinsic,430 ) -> TransactionValidity {431 Executive::validate_transaction(source, tx)432 }433 }434435 impl sp_offchain::OffchainWorkerApi<Block> for Runtime {436 fn offchain_worker(header: &<Block as BlockT>::Header) {437 Executive::offchain_worker(header)438 }439 }440441 impl sp_consensus_aura::AuraApi<Block, AuraId> for Runtime {442 fn slot_duration() -> u64 {443 Aura::slot_duration()444 }445446 fn authorities() -> Vec<AuraId> {447 Aura::authorities()448 }449 }450451 impl sp_session::SessionKeys<Block> for Runtime {452 fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {453 opaque::SessionKeys::generate(seed)454 }455456 fn decode_session_keys(457 encoded: Vec<u8>,458 ) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {459 opaque::SessionKeys::decode_into_raw_public_keys(&encoded)460 }461 }462463 impl fg_primitives::GrandpaApi<Block> for Runtime {464 fn grandpa_authorities() -> GrandpaAuthorityList {465 Grandpa::grandpa_authorities()466 }467468 fn submit_report_equivocation_extrinsic(469 _equivocation_proof: fg_primitives::EquivocationProof<470 <Block as BlockT>::Hash,471 NumberFor<Block>,472 >,473 _key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,474 ) -> Option<()> {475 None476 }477478 fn generate_key_ownership_proof(479 _set_id: fg_primitives::SetId,480 _authority_id: GrandpaId,481 ) -> Option<fg_primitives::OpaqueKeyOwnershipProof> {482 // NOTE: this is the only implementation possible since we've483 // defined our key owner proof type as a bottom type (i.e. a type484 // with no values).485 None486 }487 }488}1//! The Substrate Node Template runtime. This can be compiled with `#[no_std]`, ready for Wasm.23#![cfg_attr(not(feature = "std"), no_std)]4// `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.5#![recursion_limit = "256"]67// Make the WASM binary available.8#[cfg(feature = "std")]9include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));1011use contracts_rpc_runtime_api::ContractExecResult;12use grandpa::fg_primitives;13use grandpa::{AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};14use sp_api::impl_runtime_apis;15use sp_consensus_aura::sr25519::AuthorityId as AuraId;16use sp_core::{crypto::KeyTypeId, OpaqueMetadata};17use sp_runtime::{18 create_runtime_str, generic, impl_opaque_keys,19 transaction_validity::{TransactionSource, TransactionValidity},20 ApplyExtrinsicResult, MultiSignature,21 traits::{22 BlakeTwo256, Block as BlockT, IdentifyAccount, IdentityLookup, NumberFor, Saturating, Verify,23 },24};25use sp_std::prelude::*;26#[cfg(feature = "std")]27use sp_version::NativeVersion;28use sp_version::RuntimeVersion;2930// A few exports that help ease life for downstream crates.31pub use balances::Call as BalancesCall;32pub use contracts::Schedule as ContractsSchedule;33pub use frame_support::{34 construct_runtime, parameter_types,35 traits::{Currency, Get, ExistenceRequirement, KeyOwnerProofSystem, OnUnbalanced, Randomness, WithdrawReason},36 weights::{37 DispatchInfo, PostDispatchInfo, constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},38 IdentityFee, Weight, WeightToFeePolynomial, GetDispatchInfo, Pays,39 },40 StorageValue,41 dispatch::DispatchResult,42};43use system::{self as system};44#[cfg(any(feature = "std", test))]45pub use sp_runtime::BuildStorage;46use sp_runtime::{47 Perbill,48};495051pub use timestamp::Call as TimestampCall;5253/// Importing a nft pallet54pub use nft;5556/// An index to a block.57pub type BlockNumber = u32;5859/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.60pub type Signature = MultiSignature;6162/// Some way of identifying an account on the chain. We intentionally make it equivalent63/// to the public key of our transaction signing scheme.64pub type AccountId = <<Signature as Verify>::Signer as IdentifyAccount>::AccountId;6566/// The type for looking up accounts. We don't expect more than 4 billion of them, but you67/// never know...68pub type AccountIndex = u32;6970/// Balance of an account.71pub type Balance = u128;7273/// Index of a transaction in the chain.74pub type Index = u32;7576/// A hash of some data used by the chain.77pub type Hash = sp_core::H256;7879/// Digest item type.80pub type DigestItem = generic::DigestItem<Hash>;8182/// Opaque types. These are used by the CLI to instantiate machinery that don't need to know83/// the specifics of the runtime. They can then be made to be agnostic over specific formats84/// of data like extrinsics, allowing for them to continue syncing the network through upgrades85/// to even the core data structures.86pub mod opaque {87 use super::*;8889 pub use sp_runtime::OpaqueExtrinsic as UncheckedExtrinsic;9091 /// Opaque block header type.92 pub type Header = generic::Header<BlockNumber, BlakeTwo256>;93 /// Opaque block type.94 pub type Block = generic::Block<Header, UncheckedExtrinsic>;95 /// Opaque block identifier type.96 pub type BlockId = generic::BlockId<Block>;9798 impl_opaque_keys! {99 pub struct SessionKeys {100 pub aura: Aura,101 pub grandpa: Grandpa,102 }103 }104}105106/// This runtime version.107pub const VERSION: RuntimeVersion = RuntimeVersion {108 spec_name: create_runtime_str!("nft"),109 impl_name: create_runtime_str!("nft"),110 authoring_version: 1,111 spec_version: 1,112 impl_version: 1,113 apis: RUNTIME_API_VERSIONS,114 transaction_version: 1,115};116117pub const MILLISECS_PER_BLOCK: u64 = 6000;118119pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;120121// These time units are defined in number of blocks.122pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);123pub const HOURS: BlockNumber = MINUTES * 60;124pub const DAYS: BlockNumber = HOURS * 24;125126/// The version information used to identify this runtime when compiled natively.127#[cfg(feature = "std")]128pub fn native_version() -> NativeVersion {129 NativeVersion {130 runtime_version: VERSION,131 can_author_with: Default::default(),132 }133}134135parameter_types! {136 pub const BlockHashCount: BlockNumber = 2400;137 /// We allow for 2 seconds of compute with a 6 second average block time.138 pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;139 pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);140 /// Assume 10% of weight for average on_initialize calls.141 pub MaximumExtrinsicWeight: Weight = AvailableBlockRatio::get()142 .saturating_sub(Perbill::from_percent(10)) * MaximumBlockWeight::get();143 pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;144 pub const Version: RuntimeVersion = VERSION;145}146147impl system::Trait for Runtime {148 /// The basic call filter to use in dispatchable.149 type BaseCallFilter = ();150 /// The identifier used to distinguish between accounts.151 type AccountId = AccountId;152 /// The aggregated dispatch type that is available for extrinsics.153 type Call = Call;154 /// The lookup mechanism to get account ID from whatever is passed in dispatchers.155 type Lookup = IdentityLookup<AccountId>;156 /// The index type for storing how many extrinsics an account has signed.157 type Index = Index;158 /// The index type for blocks.159 type BlockNumber = BlockNumber;160 /// The type for hashing blocks and tries.161 type Hash = Hash;162 /// The hashing algorithm used.163 type Hashing = BlakeTwo256;164 /// The header type.165 type Header = generic::Header<BlockNumber, BlakeTwo256>;166 /// The ubiquitous event type.167 type Event = Event;168 /// The ubiquitous origin type.169 type Origin = Origin;170 /// Maximum number of block number to block hash mappings to keep (oldest pruned first).171 type BlockHashCount = BlockHashCount;172 /// Maximum weight of each block.173 type MaximumBlockWeight = MaximumBlockWeight;174 /// The weight of database operations that the runtime can invoke.175 type DbWeight = RocksDbWeight;176 /// The weight of the overhead invoked on the block import process, independent of the177 /// extrinsics included in that block.178 type BlockExecutionWeight = BlockExecutionWeight;179 /// The base weight of any extrinsic processed by the runtime, independent of the180 /// logic of that extrinsic. (Signature verification, nonce increment, fee, etc...)181 type ExtrinsicBaseWeight = ExtrinsicBaseWeight;182 /// The maximum weight that a single extrinsic of `Normal` dispatch class can have,183 /// idependent of the logic of that extrinsics. (Roughly max block weight - average on184 /// initialize cost).185 type MaximumExtrinsicWeight = MaximumExtrinsicWeight;186 /// Maximum size of all encoded transactions (in bytes) that are allowed in one block.187 type MaximumBlockLength = MaximumBlockLength;188 /// Portion of the block weight that is available to all normal transactions.189 type AvailableBlockRatio = AvailableBlockRatio;190 /// Version of the runtime.191 type Version = Version;192 /// Converts a module to the index of the module in `construct_runtime!`.193 ///194 /// This type is being generated by `construct_runtime!`.195 type ModuleToIndex = ModuleToIndex;196 /// What to do if a new account is created.197 type OnNewAccount = ();198 /// What to do if an account is fully reaped from the system.199 type OnKilledAccount = ();200 /// The data to be stored in an account.201 type AccountData = balances::AccountData<Balance>;202}203204impl aura::Trait for Runtime {205 type AuthorityId = AuraId;206}207208impl grandpa::Trait for Runtime {209 type Event = Event;210 type Call = Call;211212 type KeyOwnerProofSystem = ();213214 type KeyOwnerProof =215 <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(KeyTypeId, GrandpaId)>>::Proof;216217 type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(218 KeyTypeId,219 GrandpaId,220 )>>::IdentificationTuple;221222 type HandleEquivocation = ();223}224225parameter_types! {226 pub const MinimumPeriod: u64 = SLOT_DURATION / 2;227}228229impl timestamp::Trait for Runtime {230 /// A timestamp: milliseconds since the unix epoch.231 type Moment = u64;232 type OnTimestampSet = Aura;233 type MinimumPeriod = MinimumPeriod;234}235236parameter_types! {237 // pub const ExistentialDeposit: u128 = 500;238 pub const ExistentialDeposit: u128 = 0;239}240241impl balances::Trait for Runtime {242 /// The type for recording an account's balance.243 type Balance = Balance;244 /// The ubiquitous event type.245 type Event = Event;246 type DustRemoval = ();247 type ExistentialDeposit = ExistentialDeposit;248 type AccountStore = System;249}250251pub const MILLICENTS: Balance = 1_000_000_000;252pub const CENTS: Balance = 1_000 * MILLICENTS;253pub const DOLLARS: Balance = 100 * CENTS;254255parameter_types! {256 pub const TombstoneDeposit: Balance = 16 * MILLICENTS;257 pub const RentByteFee: Balance = 4 * MILLICENTS;258 pub const RentDepositOffset: Balance = 1000 * MILLICENTS;259 pub const SurchargeReward: Balance = 150 * MILLICENTS;260}261262impl contracts::Trait for Runtime {263 type Call = Call;264 type Time = Timestamp;265 type Randomness = RandomnessCollectiveFlip;266 type Currency = Balances;267 type Event = Event;268 type DetermineContractAddress = contracts::SimpleAddressDeterminer<Runtime>;269 type TrieIdGenerator = contracts::TrieIdFromParentCounter<Runtime>;270 type RentPayment = ();271 type SignedClaimHandicap = contracts::DefaultSignedClaimHandicap;272 type TombstoneDeposit = TombstoneDeposit;273 type StorageSizeOffset = contracts::DefaultStorageSizeOffset;274 type RentByteFee = RentByteFee;275 type RentDepositOffset = RentDepositOffset;276 type SurchargeReward = SurchargeReward;277 type MaxDepth = contracts::DefaultMaxDepth;278 type MaxValueSize = contracts::DefaultMaxValueSize;279 type WeightPrice = transaction_payment::Module<Self>;280}281282parameter_types! {283 pub const TransactionByteFee: Balance = 1;284}285286impl transaction_payment::Trait for Runtime {287 type Currency = balances::Module<Runtime>;288 type OnTransactionPayment = ();289 type TransactionByteFee = TransactionByteFee;290 type WeightToFee = IdentityFee<Balance>;291 type FeeMultiplierUpdate = ();292}293294impl sudo::Trait for Runtime {295 type Event = Event;296 type Call = Call;297}298299/// Used for the module nft in `./nft.rs`300impl nft::Trait for Runtime {301 type Event = Event;302}303304construct_runtime!(305 pub enum Runtime where306 Block = Block,307 NodeBlock = opaque::Block,308 UncheckedExtrinsic = UncheckedExtrinsic309 {310 System: system::{Module, Call, Config, Storage, Event<T>},311 RandomnessCollectiveFlip: randomness_collective_flip::{Module, Call, Storage},312 Contracts: contracts::{Module, Call, Config, Storage, Event<T>},313 Timestamp: timestamp::{Module, Call, Storage, Inherent},314 Aura: aura::{Module, Config<T>, Inherent(Timestamp)},315 Grandpa: grandpa::{Module, Call, Storage, Config, Event},316 Balances: balances::{Module, Call, Storage, Config<T>, Event<T>},317 TransactionPayment: transaction_payment::{Module, Storage},318 Sudo: sudo::{Module, Call, Config<T>, Storage, Event<T>},319 Nft: nft::{Module, Call, Storage, Event<T>},320 }321);322323/// The address format for describing accounts.324pub type Address = AccountId;325/// Block header type as expected by this runtime.326pub type Header = generic::Header<BlockNumber, BlakeTwo256>;327/// Block type as expected by this runtime.328pub type Block = generic::Block<Header, UncheckedExtrinsic>;329/// A Block signed with a Justification330pub type SignedBlock = generic::SignedBlock<Block>;331/// BlockId type as expected by this runtime.332pub type BlockId = generic::BlockId<Block>;333/// The SignedExtension to the basic transaction logic.334pub type SignedExtra = (335 system::CheckSpecVersion<Runtime>,336 system::CheckTxVersion<Runtime>,337 system::CheckGenesis<Runtime>,338 system::CheckEra<Runtime>,339 system::CheckNonce<Runtime>,340 system::CheckWeight<Runtime>,341 nft::ChargeTransactionPayment<Runtime>,342);343/// Unchecked extrinsic type as expected by this runtime.344pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;345/// Extrinsic type that has already been checked.346pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;347/// Executive: handles dispatch to the various modules.348pub type Executive =349 frame_executive::Executive<Runtime, Block, system::ChainContext<Runtime>, Runtime, AllModules>;350351impl_runtime_apis! {352353 impl contracts_rpc_runtime_api::ContractsApi<Block, AccountId, Balance, BlockNumber>354 for Runtime355 {356 fn call(357 origin: AccountId,358 dest: AccountId,359 value: Balance,360 gas_limit: u64,361 input_data: Vec<u8>,362 ) -> ContractExecResult {363 let exec_result =364 Contracts::bare_call(origin, dest.into(), value, gas_limit, input_data);365 match exec_result {366 Ok(v) => ContractExecResult::Success {367 status: v.status,368 data: v.data,369 },370 Err(_) => ContractExecResult::Error,371 }372 }373374 fn get_storage(375 address: AccountId,376 key: [u8; 32],377 ) -> contracts_primitives::GetStorageResult {378 Contracts::get_storage(address, key)379 }380381 fn rent_projection(382 address: AccountId,383 ) -> contracts_primitives::RentProjectionResult<BlockNumber> {384 Contracts::rent_projection(address)385 }386 }387388 impl sp_api::Core<Block> for Runtime {389 fn version() -> RuntimeVersion {390 VERSION391 }392393 fn execute_block(block: Block) {394 Executive::execute_block(block)395 }396397 fn initialize_block(header: &<Block as BlockT>::Header) {398 Executive::initialize_block(header)399 }400 }401402 impl sp_api::Metadata<Block> for Runtime {403 fn metadata() -> OpaqueMetadata {404 Runtime::metadata().into()405 }406 }407408 impl sp_block_builder::BlockBuilder<Block> for Runtime {409 fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyExtrinsicResult {410 Executive::apply_extrinsic(extrinsic)411 }412413 fn finalize_block() -> <Block as BlockT>::Header {414 Executive::finalize_block()415 }416417 fn inherent_extrinsics(data: sp_inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {418 data.create_extrinsics()419 }420421 fn check_inherents(422 block: Block,423 data: sp_inherents::InherentData,424 ) -> sp_inherents::CheckInherentsResult {425 data.check_extrinsics(&block)426 }427428 fn random_seed() -> <Block as BlockT>::Hash {429 RandomnessCollectiveFlip::random_seed()430 }431 }432433 impl sp_transaction_pool::runtime_api::TaggedTransactionQueue<Block> for Runtime {434 fn validate_transaction(435 source: TransactionSource,436 tx: <Block as BlockT>::Extrinsic,437 ) -> TransactionValidity {438 Executive::validate_transaction(source, tx)439 }440 }441442 impl sp_offchain::OffchainWorkerApi<Block> for Runtime {443 fn offchain_worker(header: &<Block as BlockT>::Header) {444 Executive::offchain_worker(header)445 }446 }447448 impl sp_consensus_aura::AuraApi<Block, AuraId> for Runtime {449 fn slot_duration() -> u64 {450 Aura::slot_duration()451 }452453 fn authorities() -> Vec<AuraId> {454 Aura::authorities()455 }456 }457458 impl sp_session::SessionKeys<Block> for Runtime {459 fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {460 opaque::SessionKeys::generate(seed)461 }462463 fn decode_session_keys(464 encoded: Vec<u8>,465 ) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {466 opaque::SessionKeys::decode_into_raw_public_keys(&encoded)467 }468 }469470 impl fg_primitives::GrandpaApi<Block> for Runtime {471 fn grandpa_authorities() -> GrandpaAuthorityList {472 Grandpa::grandpa_authorities()473 }474475 fn submit_report_equivocation_extrinsic(476 _equivocation_proof: fg_primitives::EquivocationProof<477 <Block as BlockT>::Hash,478 NumberFor<Block>,479 >,480 _key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,481 ) -> Option<()> {482 None483 }484485 fn generate_key_ownership_proof(486 _set_id: fg_primitives::SetId,487 _authority_id: GrandpaId,488 ) -> Option<fg_primitives::OpaqueKeyOwnershipProof> {489 // NOTE: this is the only implementation possible since we've490 // defined our key owner proof type as a bottom type (i.e. a type491 // with no values).492 None493 }494 }495}496