我正在尝试设置一个 Node 应用程序,该应用程序使用 AWS cognito sdk 来注册/登录/确认/验证用户。
我目前无法从 signUp() 方法获得响应,因为代码似乎是异步运行的。
我已经尝试定义一个异步函数 register_user(...) 并将所需的参数传递给一个单独的 register(...) 函数以等待 signUp 响应,然后继续进入 register_user(...)。
进口声明
const AmazonCognitoIdentity = require('amazon-cognito-identity-js');
const CognitoUserPool = AmazonCognitoIdentity.CognitoUserPool;
const AWS = require('aws-sdk');
const request = require('request');
const jwkToPem = require('jwk-to-pem');
const jwt = require('jsonwebtoken');
global.fetch = require('node-fetch');
注册函数
function register(userPool, email, password, attribute_list){
let response;
userPool.signUp(email, password, attribute_list, null, function(err, result){
console.log("inside")
if (err){
console.log(err.message);
response = err.message;
return response;
}
cognitoUser = result.user;
});
return "User succesfully registered."
}
注册用户
var register_user = async function(reg_payload){
email = reg_payload['email']
password = reg_payload['password']
confirm_password = reg_payload['confirm_password']
// define pool data
var poolData = {
UserPoolId : cognitoUserPoolId,
ClientId : cognitoUserPoolClientId
};
var userPool = new AmazonCognitoIdentity.CognitoUserPool(poolData);
var attribute_list = [];
// define fields needed
var dataEmail = {
Name : 'email',
Value : email
};
var attributeEmail = new AmazonCognitoIdentity.CognitoUserAttribute(dataEmail);
attribute_list.push(attributeEmail);
if (password === confirm_password){
console.log("here")
var result = await register(userPool, email, password, attribute_list);
console.log(result)
console.log("here2")
} else {
return "Passwords do not match."
}
};
我发现即使我已经定义了指定要等待的注册函数,行为仍然是异步的。
有什么方法可以强制 signUp 方法在 register_user(...) 函数中同步运行?非常感谢。
最佳答案
如果你想在 register_user
函数中 await
它,你需要改变你的 register
函数来返回一个 Promise
function register(userPool, email, password, attribute_list) {
return new Promise((resolve, reject) => {
userPool.signUp(email, password, attribute_list, null, (err, result) => {
console.log('inside');
if (err) {
console.log(err.message);
reject(err);
return;
}
cognitoUser = result.user;
resolve(cognitoUser)
});
});
}
关于javascript - 如何强制 AWS Cognito : signUp() to execute synchronously (nodejs),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56007754/