multicall-js

multicall for multicall contract, support complex type such as struct,bytes and so on.

step 1: create web3 client

const Web3 = require('web3');
function getEthClient(nodeUrl) {
  const web3 = new Web3(new Web3.providers.HttpProvider(nodeUrl));
  return web3;
}

step 2: multiCall function

const { MultiCall } = require("@gao623/multicall-js");

async function multiCall(client, config, multiCallType) {
  console.log("multiCallType", multiCallType)
  const {multiCallAddr, targetInfo} = config;
  const multiRequestResult = await MultiCall[multiCallType](client, multiCallAddr, targetInfo);
  const result = await MultiCall.decodeEthMultiCall(targetInfo, multiRequestResult);
  return result;
}

step 3: targetInfo

const targetInfo = [
  {
    address:process.env.testnetWanStoremanAdminAddr
    ,funcName:"getStoremanGroupInfo"
    ,inputTypes:["bytes32"]
    ,outputTypes:[{"components":[{"name":"groupId","type":"bytes32"},{"name":"status","type":"uint8"},{"name":"deposit","type":"uint256"},{"name":"depositWeight","type":"uint256"},{"name":"selectedCount","type":"uint256"},{"name":"memberCount","type":"uint256"},{"name":"whiteCount","type":"uint256"},{"name":"whiteCountAll","type":"uint256"},{"name":"startTime","type":"uint256"},{"name":"endTime","type":"uint256"},{"name":"registerTime","type":"uint256"},{"name":"registerDuration","type":"uint256"},{"name":"memberCountDesign","type":"uint256"},{"name":"threshold","type":"uint256"},{"name":"chain1","type":"uint256"},{"name":"chain2","type":"uint256"},{"name":"curve1","type":"uint256"},{"name":"curve2","type":"uint256"},{"name":"tickedCount","type":"uint256"},{"name":"minStakeIn","type":"uint256"},{"name":"minDelegateIn","type":"uint256"},{"name":"minPartIn","type":"uint256"},{"name":"crossIncoming","type":"uint256"},{"name":"gpk1","type":"bytes"},{"name":"gpk2","type":"bytes"},{"name":"delegateFee","type":"uint256"}],"name":"info","type":"tuple"}]
    ,outputNames:["storemanGroupInfo"]
    ,args:["0x000000000000000000000000000000000000000000000000006465765f303833"]
  }
  ,{
    address:process.env.testnetWanMultiCallAddr
    ,funcName:"getEthBalance"
    ,inputTypes:["address"]
    ,outputTypes:["uint256"]
    ,outputNames:["balance"]
    ,args:["0x14095a721Dddb892D6350a777c75396D634A7d97"]
  }
];

step 4: test function

async function test() {
    const client = getEthClient(process.env.testnetWanRpc);
    const result = await multiCall(client, {multiCallAddr: process.env.testnetWanMultiCallAddr, targetInfo}, "ethMultiCall");
    console.log("final result:", JSON.stringify(result));
    return result;
}

test();

step 5: test result

{
  blockNumber: '21634472',
  result: [
    {
      storemanGroupInfo: [
        '0x000000000000000000000000000000000000000000000000006465765f303833',
        '7',
        '1422099999999999999934000',
        '1568549999999999999901000',
        '29',
        '29',
        '1',
        '10',
        '1658895420',
        '1659500220',
        '1658809035',
        '1799',
        '29',
        '21',
        '2153201998',
        '2147483708',
        '1',
        '0',
        '0',
        '10000000000000000000000',
        '100000000000000000000',
        '10000000000000000000000',
        '0',
        '0x18bb7db1cfb22a18f7d49bcbc05388cdaf83519d63b8ebd3f3352d9255c85b442c2b2c4ccc4518429d2a4bc8eb65c2efcc538616b89195a624082dd84a5d5c41',
        '0x931c58032cce3939ede8914307b7e50b303281bc239b1b02e4daff3511e77a374094fb4c16729f29bb6f4fd38a77d0f47b0ee23a091e9e167158abc394713905',
        '1000',
        groupId: '0x000000000000000000000000000000000000000000000000006465765f303833',
        status: '7',
        deposit: '1422099999999999999934000',
        depositWeight: '1568549999999999999901000',
        selectedCount: '29',
        memberCount: '29',
        whiteCount: '1',
        whiteCountAll: '10',
        startTime: '1658895420',
        endTime: '1659500220',
        registerTime: '1658809035',
        registerDuration: '1799',
        memberCountDesign: '29',
        threshold: '21',
        chain1: '2153201998',
        chain2: '2147483708',
        curve1: '1',
        curve2: '0',
        tickedCount: '0',
        minStakeIn: '10000000000000000000000',
        minDelegateIn: '100000000000000000000',
        minPartIn: '10000000000000000000000',
        crossIncoming: '0',
        gpk1: '0x18bb7db1cfb22a18f7d49bcbc05388cdaf83519d63b8ebd3f3352d9255c85b442c2b2c4ccc4518429d2a4bc8eb65c2efcc538616b89195a624082dd84a5d5c41',
        gpk2: '0x931c58032cce3939ede8914307b7e50b303281bc239b1b02e4daff3511e77a374094fb4c16729f29bb6f4fd38a77d0f47b0ee23a091e9e167158abc394713905',
        delegateFee: '1000'
      ]
    },
    { balance: '0' }
  ]
}