Set up !ink environment.

Ink! is a Rust library developed by Parity, that explicitly targets smart contract development for Substrate’s pallet-contracts.

There are multiple reasons Rust are the best programming language for smart contracts; that's why ink! chooses not to invent a new programming language, but rather adapt a subset of Rust.

Complete detail of ink! is here

ink! CLI

The first tool we will be installing is cargo-contract, a CLI tool for helping setting up and managing WebAssembly smart contracts written with ink!.

You can find source code here on GitHub and here on crates.io.

Step 1: rustup component add rust-src

Step 2: cargo install cargo-contract --force --locked --version 3.0.1

Please note, our pallet-contracts support version <= 3.0.1