how to get return response from AWS Lambda function

Question

I have a simple lambda function that returns a dict response and another lambda function invokes that function and prints the response.

lambda function A

Answer 1

A 202 response means Accepted. It is a successful response but is telling you that the action you have requested has been initiated but has not yet completed. The reason you are getting a 202 is because you invoked the Lambda function asynchronously. Your InvocationType parameter is set to Event. If you want to make a synchronous call, change this to RequestResponse.

Once you do that, you can get the returned data like this:

data = invoke_response['Payload'].read()

Answer 2

try: data = invoke_response['Payload'].read() read() because it is a StreamingBody object

<botocore.response.StreamingBody object at 0x110b91c50>

It is in the boto3 docs. You can find more details about this here: https://boto3.amazonaws.com/v1/documentation/api/latest/guide/resources.html#actions