muta-sdk v0.10.1

Muta SDK(WIP)

The JS/TS SDK for Muta(a High performance Blockchain framework). Allow you interact with Muta node's GraphQL service.

Quick Start

npm install muta-sdk@next

Example

Suppose the AssetService is in use, the bellow code shows how to create UDT(user define token) and how to transfer

1. create an UDT call BTC
2. check the balance
3. transfer to another account
4. check the balance again

import { Muta, utils } from './src';
import { AssetService } from './src/builtin';

const muta = new Muta({
  endpoint: 'http://127.0.0.1:8000/graphql',
  chainId: '0xb6a4d7da21443f5e816e8700eea87610e6d769657d6b8ec73028457bf2ca4036'
});

const client = muta.client;
const account = muta.accountFromPrivateKey(
  '0x10000000000000000000000000000000000000000000000000000000000000000'
);

const service = new AssetService(client, account);

async function main() {
  const supply = 22000000;
  /* create an UDT call BTC */
  const txHash = await service.createAsset({
    name: 'BitCoin',
    supply,
    symbol: 'BTC'
  });
  const receipt = await client.getReceipt(toHex(txHash));
  const createdAsset = JSON.parse(receipt);
  console.log(utils.toHex(createdAsset.owner) === utils.toHex(account.address));

  /* check the balance */
  await client.waitForNextNEpoch(2);
  const assetId = createdAsset.id;
  const balance = await service.getBalance(assetId, account.address);
  console.log(balance === supply);

  /* transfer to another account */
  const to = '0x2000000000000000000000000000000000000000';
  const transferHash = await service.transfer({
    asset_id: assetId,
    to,
    value: 500
  });
  await client.getReceipt(transferHash);

  /* check the balance again */
  await client.waitForNextNEpoch(1);
  const balance2 = await service.getBalance(assetId, to);
  console.log(balance2 === 500);
}

Links

• API Documentation
• Muta

Development

• nodejs >= 10
• typescript >= 3.7
• yarn

git clone https://github.com/nervosnetwork/muta-sdk-js
cd muta-sdk-js
yarn
yarn start