使用 AWS.CognitoIdentityCredentials 时接收 "Missing credentials in config"

Question

我正在尝试将 lex bot 集成到我的网络应用程序中，这是我编写的代码。我为未经身份验证的用户使用了身份池。这是我的代码

<!DOCTYPE html>
<html>

<head>
 <title>Amazon Lex for JavaScript - Sample Application (BookTrip)</title>
 <script src="https://sdk.amazonaws.com/js/aws-sdk-2.41.0.min.js"></script>
 
  // Initialize the Amazon Cognito credentials provider
  AWS.config.region = 'us-east-1'; // Region
  AWS.config.credentials = new AWS.CognitoIdentityCredentials({
  // Provide your Pool Id here
   IdentityPoolId: 'us-east-1:xxxxxxxxxxxxx',
   RoleArn: 'arn:aws:cognito-identity:us-east-1:xxxxxxxxxxxx',
   

  });

但每次我都会收到 "Missing credentials in config" 错误。我也尝试过为此使用 AWSCognito.config.credentials 但它仍然给出相同的错误。任何帮助将不胜感激。

Answer 1

您是否正在进行以下调用以获取凭据？

// Make the call to obtain credentials
AWS.config.credentials.get(function(){

    // Credentials will be available when this function is called.
    var accessKeyId = AWS.config.credentials.accessKeyId;
    var secretAccessKey = AWS.config.credentials.secretAccessKey;
    var sessionToken = AWS.config.credentials.sessionToken;

    // Add your code here that uses the credentials

});

// Do NOT assume that the credentials are valid here

注意：在调用回调函数之前，凭据不可用。一个常见的错误是在回调之外编写代码，假设在调用 AWS.config.credentials.get().

后凭据立即存在

使用 AWS.CognitoIdentityCredentials 时接收 "Missing credentials in config"

Receiving "Missing credentials in config" when using AWS.CognitoIdentityCredentials

amazon-web-services

aws-cognito