GAE app.yaml routing with Flask-Restless - angularjs

Question

I am developing an app with AngularJS frontend + GAE backend (Python and Flask). I am having troubles to setting app.yaml for routing my API endpoints created with Flask-Restless extention. My app.yaml file looks like this:
application: myAppID
version: 1
runtime: python27
threadsafe: true
api_version: 1
handlers:
# handler 1
- url: /favicon\.ico
static_files: favicon.ico
upload: favicon\.ico
# handler 2
- url: /api/.*
script: main.app
# handler 3
- url: /test
script: main.app
# handler 4
- url: (.*)/
static_files: app\1/index.html
upload: app #this is the frontend folder for Angular
# handler 5
- url: (.*)
static_files: app\1
upload: app #this is the frontend folder for Angular
In Angular, the routes configuration looks like this:
App.config(['$stateProvider', '$locationProvider', '$urlRouterProvider', 'RouteHelpersProvider',
function ($stateProvider, $locationProvider, $urlRouterProvider, helper) {
'use strict';
$locationProvider.html5Mode(false);
// default route
$urlRouterProvider.otherwise('/app/dashboard');
// other routes ...
}]);
The main.py file looks like this:
from flask import Flask
import os
from werkzeug import debug
from flask import jsonify
from google.appengine.ext.webapp.util import run_wsgi_app
app = Flask('myApp')
if os.getenv('SERVER_SOFTWARE') and os.getenv('SERVER_SOFTWARE').startswith('Google App Engine/'):
app.debug = False
else:
app.debug = True
if app.debug:
app.wsgi_app = debug.DebuggedApplication(app.wsgi_app, True)
#app.route('/test')
def test():
return jsonify(test={"json": "test"})
import models
run_wsgi_app(app)
models is the file that contains Flask-SQLAlchemy models and Flask-Restless endpoints.
The Angular part loads correctly, for example this URL works fine:
A) http://localhost:8080/#/app/dashboard
But the GAE backend part responses with a 500 error for URLs like these:
B) http://localhost:8080/api/person
C) http://localhost:8080/test
If I remove the handler 4 and handler 5 then B and C URLs works fine but Angular frontend stop working.
What I'm doing wrong?

Answer 1

Im on the go, so writing from my phone isn't that fun...
Any way, what i did in my app is that i have only one handler that triggers the flask app.
In the flask app usually the / route will return the angular web app as a static file.
You need to configure your Flask app , that it will know about the statics (HTML, JS etc.) Folder.
EDITED:
app.yaml should look like this:
handlers:
- url: .* # This regex directs all routes to main.app
script: main.app
main.app is the flask app..
now lets see how to serve the angular app from the route '/'
from flask import Flask, render_template
app = Flask(__name__, static_folder='/templates') # This sets /templates to be the folder for all JS HTML CSS files
#app.route('/')
def wellcomePage():
return app.send_static_file('index.html')
angular routing configuration in your app.js file:
app.config(['$routeProvider', '$locationProvider',
function($routeProvider, $locationProvider) {
$routeProvider
.when('/', {
templateUrl: 'templates/views/home.html'
}).... Some More Routes..
Note that templateUrl: 'templates/...'
Please take a look at my app. I think it will help you understand what I'm trying to say here...
SE Hub at github
Ill edit this answer when i get to a freaking keyboard :)
Let me know if this helps.