AssemblyScript Smart Contracts Development Kit

Contract Example

import {
    Name,
    Contract,
    print,
} from "asm-chain";

@table("counter")
class Counter {
    public key: u64;
    public count: u64;
    constructor(count: u64=0) {
        this.count = count;
        this.key = Name.fromString("counter").N;
    }

    @primary
    get primary(): u64 {
        return this.key;
    }
}

@contract
class MyContract extends Contract {
    constructor(receiver: Name, firstReceiver: Name, action: Name) {
        super(receiver, firstReceiver, action);
    }

    @action("inc")
    inc(): void {
        let mi = Counter.new(this.receiver);
        let it = mi.find(Name.fromString("counter").N);
        let count: u64 = 0;
        let payer: Name = this.receiver;

        if (it.isOk()) {
            let counter = mi.get(it);
            counter.count += 1;
            mi.update(it, counter, payer);
            count = counter.count;
        } else {
            let counter = new Counter(1);
            mi.store(counter, payer);
            count = 1;
        }
        print(`++++++++count:${count}`);
    }
}

AssemblyScript Smart Contracts Template

There is a smart contracts template for quick starting your smart contracts project:

as-template

Boilerplate

Boilerplate to build your own contract + testing: https://github.com/ProtonProtocol/typescript-smart-contracts

Installation

npm i asm-contract

Tests

Install python packages

python3 -m venv ~/env                                                                               
source ~/env/bin/activate

python3 -m pip install --upgrade pip
python3 -m pip install ipyeos

Run HelloWorld example test

cd examples
npm run test:hello

transform is based on patractlabs/ask-lang