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Web3js method to obtain account information and balance

2022-07-02 20:23:00 【JackieDYH】

web3js file

web3 Browser check

       
        if (typeof window.ethereum !== 'undefined') {
        
  console.log('MetaMask is installed!');
        
}
       
       
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Get account information

       
        //  introduce 
        
//<script src="./node_modules/web3/dist/web3.min.js"></script>
        
async function get(){
        
    //  Instantiation web3
        
    window.web3 = new Web3(ethereum);
        
    var web3 = window.web3;
        
    //  Request user authorization   solve web3js Cannot be aroused directly Meta Mask Get user identity 
        
    const enable = await ethereum.enable();
        
    console.log(enable,11)
        
    //  Authorize access to accounts 
        
    var accounts = await web3.eth.getAccounts();
        
    // web3.eth.getAccounts().then((e)=>{console.log(e)})
        
    //  Take the first account 
        
    var myAccount = accounts[0];
        
    console.log(myAccount, 1);
        
    //  Returns the balance of the account at the specified address 
        
    var balance = await web3.eth.getBalance(myAccount);
        
    console.log(balance, 2)
        
}
       
       
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