updates to work with api hosting changes

Procfile

@@ -1 +1 @@
-web: gunicorn apod.service:app --log-file=-
+web: waitress-serve --port=8000 application:app

application.py

@@ -27,8 +27,8 @@
 #### added by justin for EB
 #from wsgiref.simple_server import make_server
 
-application = Flask(__name__)
-CORS(application, resources={r"/*": {"expose_headers": ["X-RateLimit-Limit","X-RateLimit-Remaining"]} })
+app = Flask(__name__)
+CORS(app, resources={r"/*": {"expose_headers": ["X-RateLimit-Limit","X-RateLimit-Remaining"]} })
 
 LOG = logging.getLogger(__name__)
 # logging.basicConfig(level=logging.INFO)
@@ -253,24 +253,24 @@ def _get_json_for_date_range(start_date, end_date, use_concept_tags, thumbs):
 # Endpoints
 #
 
-@application.route('/')
+@app.route('/')
 def home():
     return render_template('home.html', version=SERVICE_VERSION,
                            service_url=request.host,
                            methodname=APOD_METHOD_NAME,
                            usage=_usage(joinstr='", "', prestr='"') + '"')
 
-@application.route('/static/<asset_path>')
+@app.route('/static/<asset_path>')
 def serve_static(asset_path):
     return current_app.send_static_file(asset_path)
 
 
-@application.route('/' + SERVICE_VERSION + '/' + APOD_METHOD_NAME + '/', methods=['GET'])
+@app.route('/' + SERVICE_VERSION + '/' + APOD_METHOD_NAME + '/', methods=['GET'])
 def apod():
     LOG.info('apod path called')
     try:
 
-        # application/json GET method
+        # app/json GET method
         args = request.args
 
         if not _validate(args):
@@ -309,7 +309,7 @@ def apod():
             return _abort(500, 'Internal Service Error', usage=False)
 
 
-@application.errorhandler(404)
+@app.errorhandler(404)
 def page_not_found(e):
     """
     Return a custom 404 error.
@@ -318,13 +318,13 @@ def page_not_found(e):
     return _abort(404, 'Sorry, Nothing at this URL.', usage=True)
 
 
-@application.errorhandler(500)
-def application_error(e):
+@app.errorhandler(500)
+def app_error(e):
     """
     Return a custom 500 error.
     """
     return _abort(500, 'Sorry, unexpected error: {}'.format(e), usage=False)
 
 
 if __name__ == '__main__':
-    application.run('0.0.0.0', port=5000)
+    app.run('0.0.0.0', port=8000)

requirements.txt

@@ -6,7 +6,6 @@
 # Note: The `lib` directory is added to `sys.path` by `appengine_config.py`.
 flask>=1.0.2
 flask-cors>=3.0.7
-gunicorn==19.5.0
 Jinja2>=2.8
 Werkzeug>=0.10.4
 beautifulsoup4==4.11.1
@@ -16,4 +15,5 @@ nose==1.3.7
 setupext-janitor==1.0.0
 bs4==0.0.1
 mock>=3.0.0
-Pillow>=9.3
+Pillow>=9.3
+waitress==2.1.2