外观就像您需要更改您的 AWSCognito.config.credentials b一样。

Looks like you need to change your AWSCognito.config.credentials From what you have to this:

// Add the Facebook access token to the Cognito credentials login map.
AWS.config.credentials = new AWS.CognitoIdentityCredentials({
  IdentityPoolId: 'IDENTITY_POOL_ID',
  Logins: {
    'graph.facebook.com': response.authResponse.accessToken
  }
});

// Obtain AWS credentials
AWS.config.credentials.get(function(){
    // Access AWS resources here.
});

注意： IdentityPoolId： IDENTITY_POOL_ID，而不是 IdentityPoolId：'<％= process.env.AWS_USERPOOLGUID％>'，//您的身份池ID在此处

看起来像您正在尝试访问您的 USER POOL ，而不是您的 IDENTITY POOL 。

Looks like you are trying to access your USER POOL and not your IDENTITY POOL.

Facebook用户位于身份池中因为他们是来自Facebook服务器的联合用户。

Facebook users live in the Identity Pool because they are a federated user from the Facebook server.