Chain-extension contracts

This repository contains crates of chain-extension that you can use in your contracts.

Purpose

In crates folder you will find the chain-extension struct that implements callable functions. In examples folder you will find full implementation of the chain-extension struct and its integration tests in tests folder

Versions

ink! v4.0.0
openbrush 3.0.0

Chain-Extensions

Pallet Assets

This crate exposes AssetsExtension struct that implement all functions of pallet-assets chain-extension.

Usage

1. add assets_extension in your Cargo.toml and to the std features

assets_extension = {  git = "https://github.com/swanky-dapps/chain-extension-contracts", default-features = false }

[features]
default = ["std"]
std = [
    "ink_metadata/std",
    "ink/std",
    "scale/std",
    "scale-info/std",
    "assets_extension/std",
]

2. Add use statement in your contract module

use assets_extension::*;

3. Use struct functions directly in your contract

AssetsExtension::create(Origin::Address, asset_id, contract, min_balance)

Note: For now only call as contract Origin::Address is supported

Dapps Staking

This crate exposes DappsStaking struct that implement all functions of dapps-staking chain extension.

Usage

1. add dapps_staking_extension in your Cargo.toml and to the std features

dapps_staking_extension = { git = "https://github.com/swanky-dapps/chain-extension-contracts", default-features = false }

[features]
default = ["std"]
std = [
    "ink_metadata/std",
    "ink/std",
    "scale/std",
    "scale-info/std",
    "dapps_staking_extension/std"
]

2. Add use statement in your contract module

pub mod staking_example {
    use dapps_staking_extension::*;
...

3. Use struct functions directly in your contract

DappsStaking::read_unbonding_period()

License

Apache 2.0

🏗️ How to use - Contracts

💫 Build

Use these instructions to set up your ink!/Rust environment
Run this command in the contract folder:

cargo contract build

💫 Deploy

First start your local node.
Deploy using contracts UI. Instructions on Astar docs

💫 Run integration test

First start your local node. This repo needs a node version of at least polkadot v0.9.37 Recommended swanky-node 1.4.0

yarn
yarn compile
yarn test