wemix-web3

Web3 wrapper for ERC721, 725, 735 and governance

Install

npm i wemix-web3

Components

1. Registry
2. AttestationAgencyRegistry
3. Identity
4. IdentityManager
5. TopicRegistry
6. AchievementManager
7. BallotStorage
8. EnvStorage
9. Governance
10. Staking

Usage

import React, { Component } from "react";

// Web3
import Web3 from "web3";
import web3config from "./web3-config.json";

// Contracts
import {
  constants,
  contracts,
  getContractsAddresses,
  initContracts,
  TopicRegistry,
} from "wemix-web3";

class Example extends Component {
  state = {
    initDone: false,
  };

  async init() {
    initContracts({
      web3: new Web3(new Web3.providers.HttpProvider(web3config.url)),
      branch: constants.branch.TESTNET,
      identity: web3config.identity,
      privkey: web3config.privkey,
    }).then(async () => {
      // All contracts are initialized
      this.result = {
        getLengthOfAchievements:
          await contracts.achievementManager.getLengthOfAchievements(),
        getAttestationAgencyNum:
          await contracts.aaRegistry.getAttestationAgencyNum(),
        getTotal: await contracts.topicRegistry.getTotal(),
      };
      this.setState({ initDone: true });
    });
  }

  async initDirectly() {
    // If you want to initialize each contract directly
    getContractsAddresses().then(async () => {
      let topicRegistry = new TopicRegistry();
      topicRegistry
        .init({
          web3: new Web3(new Web3.providers.HttpProvider(web3config.url)),
        })
        .then(async () => {
          let total = await topicRegistry.getTotal();
          console.log("total", total);
        });
    });
  }

  componentWillMount() {
    this.init();
  }

  render() {
    return (
      <div>
        {this.state.initDone &&
          Object.keys(this.result).map((k) => (
            <p key={k}>{k + ": " + this.result[k]}</p>
          ))}
      </div>
    );
  }
}

Test

cd wemix-web3
npm start
[Ctrl+C]
cd example
npm start

Reference

• ERC721 spec.
• ERC725 spec.
• ERC735 spec.
• ERC725-735 imp.
• OpenZeppelin imp.