IBFT.js

const providers = require('hyperledger-besu-ethers').providers;
const provider = new providers.BesuProvider('http://localhost:20000');

async function example() {
    // List validators for a block number
    let validators = await provider.ibftGetValidatorsByBlockNumber('latest');
    console.log(validators);
    // [ "0x42d4287eac8078828cf5f3486cfe601a275a49a5", "0xb1b2bc9582d2901afdc579f528a35ca41403fa85", "0xef1bfb6a12794615c9b0b5a21e6741f01e570185" ]

    // List validators for a block
    validators = await provider.ibftGetValidatorsByBlockHash(
        '0xbae7d3feafd743343b9a4c578cab5e5d65eb735f6855fb845c00cab356331256',
    );
    console.log(validators);
    // [ "0x42d4287eac8078828cf5f3486cfe601a275a49a5", "0xb1b2bc9582d2901afdc579f528a35ca41403fa85", "0xef1bfb6a12794615c9b0b5a21e6741f01e570185" ]

    // Proposal to add a new validator
    let success = await provider.ibftProposeValidatorVote('0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73', true);
    console.log(success); // true

    // Proposal to remove a existing validator
    success = await provider.ibftProposeValidatorVote('0x42eb768f2244c8811c63729a21a3569731535f06', false);
    console.log(success); // true

    // List outstanding validator votes
    const validatorVotes = await provider.ibftGetPendingVotes();
    console.log(validatorVotes);
    /*
  {
    "0x42eb768f2244c8811c63729a21a3569731535f07": false,
    "0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73": true
  }
  */

    // Remove the proposals to add a new validator
    success = await provider.ibftDiscardValidatorVote('0xFE3B557E8Fb62b89F4916B721be55cEb828dBd73');
    console.log(success); // true

    // Remove the proposals to remove an existing validator
    success = await provider.ibftDiscardValidatorVote('0x42eb768f2244c8811c63729a21a3569731535f07');
    console.log(success); // true
}

example();