Play Substrate

A few simple pallets for learning and demo the capability of Substrate blockchain framework.

Runtime Modules

Disclaimer: these modules are for learning purpose, you should never use them in production.

Template Pallet, A simple module to experience simple storage data type, error handling, test and benchmark structure.
Proof of Existence Pallet, A simple module to store a claim (BoundedVec<u8>), revoke it, and transfer the claim to someone else. This pallet includes,
- busisness logic to create/revoke/transfer a claim.
- unit test of logic
- benchmark of weights used for each dispatchables.
Data Type Pallet, It helps with better understanding what Rust types are supported in Substrate blockchain development.
Coin Flip Game Pallet, Outdated
Benchmark Demo, Deprecated, you can find similar code in Proof of Existence pallet.
Offchain Worker
- Offchain worker - send unsigned transaction (outdated)
- Offchain worker - send signed transaction (outdated)
Genesis Config Pallet, Outdated
Custome Weight, Outdated

Getting Started

Install Dependencies

Before you start developing with Substrate, you need to prepare your environment by following the doc.

Compile and Run

# compile the code into binary
cargo build --release

# start the compiled binary with local dev network
./target/release/node-template --dev

Connect with Front-end

Once the node template is running locally, you can connect it with Polkadot-JS Apps front-end to interact with your chain. Click here connecting the Apps to your local node template.

Test the code

# test only one pallet
cargo test -p pallet-poe

# test all the pallets
cargo test

Benchmark

Compile the node with runtime-benchmarks feature,

cargo build --release --features runtime-benchmarks

Run the benchmark for Proof of Existence pallet,

./target/release/node-template benchmark pallet --chain dev --execution wasm --wasm-execution compiled --pallet pallet_poe --extrinsic "*" --steps 20 --repeat 10 --output ./pallets/poe/src/weights.rs --template .maintain/frame-weight-template.hbs

Show all the available benchmarks,

./target/release/node-template benchmark pallet --chain dev --pallet "*" --extrinsic "*" --repeat 0

TomaszWaszczyk/play-substrate