[FIXED] How can I use flask routing on google cloud functions?

Issue

I want to make a simple serverless backend, so I'm trying to use google cloud functions with flask routing.

I'm trying to test a simple code, but it's not working. The following source always returns 404 errors.

from flask import Flask, make_response

class Services:
    pass

def create_app(test_config = None):
    app = Flask(__name__)

    services = Services

    create_endpoints(app, services)

    return app

def create_endpoints(app, services):

    @app.route("/test", methods=['GET'])
    def test():
        return make_response('Test worked!', 200)

function URL : ######.cloudfunctions.net/test1

I tried "######.cloudfunctions.net/test1" and "######.cloudfunctions.net/test1/test", but it always returns 404 error.

can I use flask routing ?

Solution

I think that it is a not fancy way to add a router to a cloud function, but it works.

I used the property "path" of the object "request"( this is a flask.request object) to read the path after the domain in the requested URL

from flask import abort

def coolrouter(request):
    path = (request.path)

    if (path == "/test"):
        return "test page"
    elif (path == "/home" or path =="/"):
        return "ḧome page"
    else:
        abort (404)

keep in mind that cloud functions are designed to be a one shot services, that means that is not possible to save session variables or other things since this is service is ephemeral.

If you want upload a complete site I recommend you to use App Engine, which is a Fully managed serverless application platform.

Answered By - Jan Hernandez