If you want to add custom response headers to GCE (Google Cloud Endpoints), you’re going to have to do some monkey patching.
import endpoints.util as util # Note: If someone imports send_wsgi_response before here, the function will NOT be decorated # and the original function will be used until this bit runs def add_headers(wsgi_func): def wrapper(status, headers, content, start_response, cors_handler=None): headers.append(('Some-Header', 'some-value')) return wsgi_func(status, headers, content, start_response, cors_handler) return wrapper util.send_wsgi_response = add_headers(util.send_wsgi_response)
I put this bit in my
__init__.py that takes care of loading up the service, since I want to make sure this runs first. This is specific example for my needs, so customize as you see fit.