AccessDeniedException: User: arn:aws:sts::764717618004:assumed-role/cloudwatch_logs_events_putter/

Question

Hello, I have observed that the Lambda functions are working correctly on my local machine with my NextJS application. However, when I deployed my NextJS application on the server, I encountered an error in the network tab.

{"message":"AccessDeniedException: User: arn:aws:sts::764717618004:assumed-role/cloudwatch_logs_events_putter/uZUu4Ca7Slsek0AGRJnQtenJ-5c0c2554740d00c0e47b39b0106000bb2d9b492 is not authorized to perform: cognito-idp:AdminInitiateAuth on resource: arn:aws:cognito-idp:us-east-2:764717618004:userpool/us-east-2_Y93BT0AII because no identity-based policy allows the cognito-idp:AdminInitiateAuth action"}

Answer

Hi Shyam,

This error comes from the AWS Lambda function from not having the ability to execute the API action `cognito-idp:AdminInitiateAuth`.

You can correct this by adding an going to your lambda function, going to configuration, and selecting permissions. Under Execution Role, click on the role name and then edit the inline policy to allow the action.

AccessDeniedException: User: arn:aws:sts::764717618004:assumed-role/cloudwatch_logs_events_putter/

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