我正在尝试向NodeJS应用程序验证Salesforce。我收到类似错误的错误：invalid_grant - authentication failure.这里我还遗漏了什么.我需要从salesforce端做任何配置吗？这是我的代码.有人能帮我吗？

app.js
 var nforce = require('nforce');

    const client_id = '**'
    const client_secret = '****'
    const redirect_uri = 'https://***.sandbox.my.salesforce.com/services/oauth2/success'
    const sfdc_user = '*****'
    const sfdc_pass = '***'

    const credentials = {
        client_id :client_id,
        client_secret:client_secret,
        grant_type:"password",
        username:sfdc_user,
        password:sfdc_pass
    }

    async function getConnection(){
        const loginUrl = "https://***.sandbox.my.salesforce.com/services/oauth2/token";

        var org = nforce.createConnection({
            clientId: credentials.client_id,
            clientSecret: credentials.client_secret,
            redirectUri: redirect_uri,
        });
        console.log('org >>'+JSON.stringify(org));
        let oauth= await org.authenticate({ username: credentials.username, password: credentials.password});
        console.log('oauth >>'+oauth); //Couldnt get this console
        const access_token = oauth.access_token;
        const sf_auth_url = oauth.instance_url + '/services/data/v48.0/'
        sf_auth = {
            'Authorization':'Bearer ' + access_token, 
            'Content-type': 'application/json',
            'Accept-Encoding': 'gzip'
        }
        return { sf_auth,sf_auth_url }
    }

    module.exports = { getConnection } 

main.js
const f = require('./app');
const https = require('https')
const fs = require('fs')
const port = 3000

const server = https.createServer(function(req,res){
res.writeHead(200,{'Content-Type': 'text/html'})

res.end();
})

server.listen(port,function(error){
    if(error){
        console.log('Something Went Wrong!')
    }else{
        console.log('Server is listening on port '+port)
        f.getConnection();
    }
})