Returning header content - API Gateway + AWS Lambda

Question

I am developing a POST lambda function. I want to return "Location" in the header. So I configure API Gateway, like below:

when I call the API, I am receving the "Location" correct in the header, but I am still receiving it on return message. Look below:

[

My python code:

def os_create_subscription (event, context):
    customer_id = event["customer-id"]
    subscription_id = 12345
    header_location = ("/customers/%s/subscriptions/%d" % (customer_id, subscription_id))
    result = {"Location": header_location}
    return result

So i would like to have the Location just in the header. Is there anyway to do this?

Answer 1

Header mapping from response bodies was a recently added to API Gateway. You can see examples in our documentation .

Your mapping should be: integration.response.body.Location

Edit: Apologies for misreading. To remove the Location from the response body, you would need to have a mapping template with an empty JSON body.