环境需要参考之前的substrate学习进行，保证substrate可以直接运行后，对于需要的模块可以进行配置添加。
- 使用VSCode打开项目，在runtime中有一个Cargo.toml配置，将crate添加进入dependents中，并且在features中增加std依赖。
toml
……
pallet-nicks = { default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.17" }
[features]
default = ['std']
std = [
...
'pallet-aura/std',
'pallet-balances/std',
'pallet-nicks/std',
...
]
-
可以通过
cargo check -p node-template-runtime命令查看是否编写错误 -
每一个需要引入的pallet都可以在lib.rs中进行配置，这种配置是非入侵式的，需要配置在construct_runtime！()之前，如下代码所示。
```rust // Add my Nick pallet static final config parameter_types! { // Choose a fee that incentivizes desireable behavior. pub const NickReservationFee: u128 = 100; pub const MinNickLength: u32 = 8; // Maximum bounds on storage are important to secure your chain. pub const MaxNickLength: u32 = 32; }
impl pallet_nicks::Config for Runtime {
// The Balances pallet implements the ReservableCurrency trait.
// Balances is defined in construct_runtime! macro. See below.
// https://docs.substrate.io/rustdocs/latest/pallet_balances/index.html#implementations-2
type Currency = Balances;
// Use the NickReservationFee from the parameter_types block.
type ReservationFee = NickReservationFee;
// No action is taken when deposits are forfeited.
type Slashed = ();
// Configure the FRAME System Root origin as the Nick pallet admin.
// https://docs.substrate.io/rustdocs/latest/frame_system/enum.RawOrigin.html#variant.Root
type ForceOrigin = frame_system::EnsureRoot<AccountId>;
// Use the MinNickLength from the parameter_types block.
type MinLength = MinNickLength;
// Use the MaxNickLength from the parameter_types block.
type MaxLength = MaxNickLength;
// The ubiquitous event type.
type Event = Event;
}
// Create the runtime by composing the FRAME pallets that were previously configured. construct_runtime!( pub enum Runtime where Block = Block, NodeBlock = opaque::Block, UncheckedExtrinsic = UncheckedExtrinsic { System: frame_system, …… //这里需要添加pallet_nicks宏 // add my nicks pallet Nicks: pallet_nicks, } ); ```
-
使用
cargo build --release进行打包 -
重新运行项目
./target/release/node-template --dev -
启动前端
yarn start