Answers for "call smart contract function web3"

call smart contract function web3

import React, { Component } from 'react'
import Web3 from 'web3'
export class App extends Component {
    constructor(props) {
        super(props)
        this.state = {}
    }
    async componentDidMount() {
        const web3 = new Web3("http://localhost:7545")
        const accounts = await web3.eth.getAccounts()
        this.setState({ account: accounts[0] })
        const networkId = await web3.eth.net.getId()
        const networkData = require('./abi.json').networks[networkId]
        if (networkData) {
            const test = new web3.eth.Contract(require('./abi.json').abi, networkData.address)
            this.setState({ test })
            const sms = await test.methods.appName().call()
            return console.log(sms)
        }
    }
    render() {
        return (
            <div>
                <h2>Network</h2>
            </div>
        )
    }
}

export default App