Method handler

zappa/handler.py:687–996

An AWS Lambda function which parses specific API Gateway input into a WSGI request, feeds it to our WSGI app, processes the response, and returns that back to the API Gateway.

(self, event, context)

        return self.settings.COGNITO_TRIGGER_MAPPING.get(trigger)

    def handler(self, event, context):
        """
        An AWS Lambda function which parses specific API Gateway input into a
        WSGI request, feeds it to our WSGI app, processes the response, and returns
        that back to the API Gateway.

        """
        settings = self.settings
        # If in DEBUG mode, log all raw incoming events.
        if settings.DEBUG:
            logger.debug("Zappa Event: {}".format(event))

        # Set any API Gateway defined Stage Variables
        # as env vars
        if event.get("stageVariables"):
            for key in event["stageVariables"]:
                os.environ[key] = event["stageVariables"][key]

        # This is the result of a keep alive, recertify
        # or scheduled event.
        if event.get("detail-type") == "Scheduled Event":
            whole_function = event["resources"][0].split("/")[-1].split("-")[-1]

            # This is a scheduled function.
            if "." in whole_function:
                app_function = self.import_module_and_get_function(whole_function)

                # Execute the function!
                return self.run_function(app_function, event, context)

            # Else, let this execute as it were.

        # This is a direct command invocation.
        elif event.get("command", None):
            whole_function = event["command"]
            app_function = self.import_module_and_get_function(whole_function)
            result = self.run_function(app_function, event, context)
            print("Result of %s:" % whole_function)
            print(result)
            return result

        # This is a direct, raw python invocation.
        # It's _extremely_ important we don't allow this event source
        # to be overridden by unsanitized, non-admin user input.
        elif event.get("raw_command", None):
            raw_command = event["raw_command"]
            exec(raw_command)
            return

        # This is a Django management command invocation.
        elif event.get("manage", None):
            from django.core import management

            try:  # Support both for tests
                from zappa.ext.django_zappa import get_django_wsgi
            except ImportError:  # pragma: no cover
                from django_zappa_app import get_django_wsgi