Amazon Lambda function 和 Cognito：使用 lambda ZC1C4254268E68384F1AAB1C44425268E68384F1A1B1C1C42542068E68384F111000000000000000000000000000000000000000的新用户在现有用户池中添加新用户。

Question

I would know if we can create a lambda function to add a new user to a specific user pool, if yes have you any example that explain which role to create for this lambda function using nodeJs?.

Answer 1

If i understood your question correctly follow these steps:

• In your aws console navigate to "Identity and Access Management (IAM)"
• Select "Roles" and look for your lambda function, click on it.
• Under "Permissions" click on "Attach Policies" and look for "AmazonCognitoPowerUser", this policy will give your lambda full access to Cognito User Pools.

Create new user code example:

const aws = require('aws-sdk');
const cognito = new aws.CognitoIdentityServiceProvider();
const params = {
    ClientId: "The ID of the client associated with the user pool",
    Username: "My Username",
    Password: "My Password",
};
cognito.signUp(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Take a look at this api documentation