lost-theory · February 9, 2022 16:58 · Feb 25, 2015 · Feb 25, 2015 · Feb 24, 2015
diff --git a/app_factory.py b/app_factory.py
@@ -2,7 +2,6 @@
 
 from flask import Flask, Blueprint, g
 
-app = Flask(__name__)
 api = Blueprint('api', __name__)
 
 class Server(object):

diff --git a/app_factory.py b/app_factory.py
@@ -0,0 +1,35 @@
+import os
+
+from flask import Flask, Blueprint, g
+
+app = Flask(__name__)
+api = Blueprint('api', __name__)
+
+class Server(object):
+   def __init__(self, data):
+       self.data = data
+
+@api.route("/api_method", methods=['GET', 'POST'])
+def api_method():
+    return g.server.data
+
+def make_app():
+    '''
+    Application factory: http://flask.pocoo.org/docs/0.10/patterns/appfactories/
+    '''
+    app = Flask(__name__)
+    app.register_blueprint(api)
+
+    with open(os.environ['SERVER_FILE']) as f:
+        server = Server(f.read())
+
+    @app.before_request
+    def add_server_to_globals():
+        g.server = server
+
+    return app
+
+if __name__ == '__main__':
+    app = make_app()
+    app.config['DEBUG'] = True
+    app.run(use_debugger=True, use_reloader=True)
diff --git a/app_gunicorn.py b/app_gunicorn.py
@@ -0,0 +1,2 @@
+from app_factory import make_app
+app = make_app()
diff --git a/app.py → app_simple.py b/app.py → app_simple.py
@@ -12,7 +12,7 @@ def __init__(self, data):
 def api_method():
     return g.server.data
 
-@app.before_first_request
+@app.before_request
 def add_server_to_globals():
     with open(os.environ['SERVER_FILE']) as f:
         g.server = Server(f.read())

diff --git a/output.txt b/output.txt
@@ -1,10 +1,16 @@
-$ SERVER_FILE=app.py bin/gunicorn app:app
+$ SERVER_FILE=app.py bin/gunicorn app_simple:app
 [2015-02-24 10:10:20 -0800] [3217] [INFO] Starting gunicorn 19.2.1
 [2015-02-24 10:10:20 -0800] [3217] [INFO] Listening at: http://127.0.0.1:8000 (3217)
 [2015-02-24 10:10:20 -0800] [3217] [INFO] Using worker: sync
 [2015-02-24 10:10:20 -0800] [3220] [INFO] Booting worker with pid: 3220
 ...
 
+OR if you use the application factory:
+
+$ SERVER_FILE=app.py bin/gunicorn app_gunicorn:app
+[2015-02-25 09:52:29 -0800] [5613] [INFO] Starting gunicorn 19.2.1
+...
+
 $ curl http://127.0.0.1:8000/api_method
 import os
 

diff --git a/app.py b/app.py
@@ -0,0 +1,21 @@
+import os
+
+from flask import Flask, g
+
+app = Flask(__name__)
+
+class Server(object):
+   def __init__(self, data):
+       self.data = data
+
+@app.route("/api_method", methods=['GET', 'POST'])
+def api_method():
+    return g.server.data
+
+@app.before_first_request
+def add_server_to_globals():
+    with open(os.environ['SERVER_FILE']) as f:
+        g.server = Server(f.read())
+
+if __name__ == '__main__':
+    app.run()
diff --git a/output.txt b/output.txt
@@ -0,0 +1,14 @@
+$ SERVER_FILE=app.py bin/gunicorn app:app
+[2015-02-24 10:10:20 -0800] [3217] [INFO] Starting gunicorn 19.2.1
+[2015-02-24 10:10:20 -0800] [3217] [INFO] Listening at: http://127.0.0.1:8000 (3217)
+[2015-02-24 10:10:20 -0800] [3217] [INFO] Using worker: sync
+[2015-02-24 10:10:20 -0800] [3220] [INFO] Booting worker with pid: 3220
+...
+
+$ curl http://127.0.0.1:8000/api_method
+import os
+
+from flask import Flask, g
+
+app = Flask(__name__)
+...
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		from app_factory import make_app
		app = make_app()
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