javascript - AWS Cognito AdminGetUser 返回 undefined object

Question

我正在尝试为站点管理员设置页内用户属性查看器，以便他们可以查看和设置不同的用户变量。当我向我的用户池发出请求时，我没有返回用户对象或 HTTP 错误对象，而是收到以下错误:

TypeError: Cannot read property 'byteLength' of undefined
    at Object.isEmptyData (browserHashUtils.js?a069:41)
    at Hmac.update (browserHmac.js?f8e2:34)
    at Object.hmac (util.js?05a3:423)
    at Object.getSigningKey (v4_credentials.js?146b:62)
    at V4.signature (v4.js?2886:98)
    at V4.authorization (v4.js?2886:93)
    at V4.addAuthorization (v4.js?2886:35)
    at eval (event_listeners.js?b7ab:236)
    at finish (config.js?6e76:379)
    at eval (config.js?6e76:397) "TypeError: Cannot read property 'byteLength' of undefined
    at Object.isEmptyData (webpack-internal:///./node_modules/aws-sdk/lib/browserHashUtils.js:41:17)
    at Hmac.update (webpack-internal:///./node_modules/aws-sdk/lib/browserHmac.js:34:19)
    at Object.hmac (webpack-internal:///./node_modules/aws-sdk/lib/util.js:423:50)
    at Object.getSigningKey (webpack-internal:///./node_modules/aws-sdk/lib/signers/v4_credentials.js:62:8)
    at V4.signature (webpack-internal:///./node_modules/aws-sdk/lib/signers/v4.js:98:36)
    at V4.authorization (webpack-internal:///./node_modules/aws-sdk/lib/signers/v4.js:93:36)
    at V4.addAuthorization (webpack-internal:///./node_modules/aws-sdk/lib/signers/v4.js:35:12)
    at eval (webpack-internal:///./node_modules/aws-sdk/lib/event_listeners.js:236:18)
    at finish (webpack-internal:///./node_modules/aws-sdk/lib/config.js:379:7)
    at eval (webpack-internal:///./node_modules/aws-sdk/lib/config.js:397:9)"

现在显然它正在返回一个空对象。我想知道的是为什么它返回 null 而不是任何其他错误，例如“UserNotFound”或发现的任何其他 400 错误 here ，而是一个空对象。我传入的内容似乎有问题，但与插入 AdminGetUser 的参数无关，因为值是否有效是相同的，但是缺少它们将引发 400 错误。

我目前的代码如下:

import  AWS  from 'aws-sdk'
        AWS.config.region = 'us-west-2'; // Region
        AWS.config.credentials = new AWS.CognitoIdentityCredentials({
            IdentityPoolId: 'us-west-2:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
        });
        AWS.config.accessKeyId = "xxxxxxxxxxxxxxxxxx"
        AWS.config.secretAccessKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
        var cognitoidentityserviceprovider = new AWS.CognitoIdentityServiceProvider();
        var params = {
          Username: 'xxxxxxxxx',
          UserPoolId: 'us-west-xxxxxxxx'
        }
        cognitoidentityserviceprovider.adminGetUser(params, function(err,data){
          if(err) console.log( err, err.stack);
          else    {
            console.log(data)
          };
        });

到目前为止我有:

• 更新了 aws-sdk 模块
• 通过生成新 key 和复制粘贴来确保访问 key 和 secret 访问 key 有效
• 确保身份池 ID、用户池 ID 和区域准确无误
• 通过用有效用户名替换无效用户名来尝试获取错误 400:未找到用户以达到相同的效果进行了测试
• 使用无效/有效的用户池 ID 与上面的操作相同以达到相同的效果
• 在 AWS CLI 中测试命令为 aws cognito-idp --user-pool-id id iiusername validusername 并得到正确的响应

有没有人遇到过同样的事情，你是如何解决的？

Answer 1

原因是我只更新了 AWS.config，这意味着 AWS.config.credentials.accessKeyId 和 AWS.config.credentials.secretAccessKey 是未定义的。当 Admin API 尝试读取这些时，它会抛出“未定义”，因为根本没有任何数据。通过将与 AWS.config 对应项完全相同的值添加到上述字段，我得到了我的数据。

async adminGetUser(_, {username}){
        AWS.config.region = 'us-west-2'; // Region
        AWS.config.credentials = new AWS.CognitoIdentityCredentials({
            IdentityPoolId: 'us-west-2:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
        });
        AWS.config.accessKeyId = "xxxxxxxxxxxxxxxxxxx"
        AWS.config.secretAccessKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
        AWS.config.credentials.accessKeyId = "xxxxxxxxxxxxxxxxxx"
        AWS.config.credentials.secretAccessKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxx"
        AWS.config.apiVersion = 'latest'
        AWS.config.maxRetries = 100
        var cognitoidentityserviceprovider = new AWS.CognitoIdentityServiceProvider();
        var params = {
          Username: username,
          UserPoolId: 'us-west-xxxxxxxxx'
        }
        cognitoidentityserviceprovider.adminGetUser(params, function(err,data){
          if(err) console.log( err, err.stack);
          else    {
            console.log(data)
            return data
          };
        });

    },

调用它的函数:

let params = {
            username: this.USERNAME
        }
        console.log("getting user")
        let user = await this.$store.dispatch('adminGetUser', params);
        console.log(user)

并输出:

getting user

undefined

{userdata}