Routing for GCF.

routed_cloud_function.py

# hack together router with werkzeug because google cloud functions does not
# support full flask apps
from werkzeug.routing import Map, Rule, NotFound
from werkzeug.exceptions import MethodNotAllowed, HTTPException

url_map = []


def route(path, methods=("GET",)):
    def decorator(fn):
        def endpoint(req):
            if methods:
                if req.method not in methods:
                    raise MethodNotAllowed(list(methods))

            return fn(req)

        url_map.append(Rule(path, endpoint=endpoint))

    return decorator


@route("/", ("GET",))
def helloWorld(req):
    return "hello world"


url_map = Map(url_map)

import logging


def entry(request):
    logging.info(f"{request.full_path}")
    logging.info(f"{request.path}")

    urls = url_map.bind("localhost", path_info=request.path)
    try:
        endpoint, args = urls.match()
        return endpoint(request)
    except HTTPException as e:
        raise e