system module with flask app factory, db, commands, blueprints and routes

Author: ProgrammingLanguageLeader

system/__init__.py

@@ -1,8 +0,0 @@
-from flask import Flask
-
-from system.routes import routes_blueprint
-
-
-app = Flask(__name__)
-app.config.from_object('system.config')
-app.register_blueprint(routes_blueprint)

system/app.py

@@ -0,0 +1,19 @@
+from flask import Flask
+
+from system.db import db, migrate
+from system.blueprints import register_blueprints
+from system.commands import register_commands
+
+
+def create_app():
+    app = Flask(__name__)
+    app.url_map.strict_slashes = False
+    app.config.from_object('system.config')
+
+    db.app = app
+    db.init_app(app)
+    migrate.init_app(app, db)
+    register_blueprints(app)
+    register_commands(app)
+
+    return app

system/blueprints.py

@@ -0,0 +1,9 @@
+from system.routes import system_blueprint
+
+
+def register_blueprints(app):
+    with app.app_context():
+        app.register_blueprint(system_blueprint)
+
+        from telegram_bot.routes import telegram_blueprint
+        app.register_blueprint(telegram_blueprint, url_prefix='/telegram')

system/commands.py

@@ -0,0 +1,23 @@
+import click
+
+from flask.cli import with_appcontext
+
+import telegram_bot.polling
+import telegram_bot.webhook
+
+
+@click.command('polling')
+@with_appcontext
+def start_polling():
+    telegram_bot.polling.start_polling()
+
+
+@click.command('webhook')
+@with_appcontext
+def start_webhook():
+    telegram_bot.webhook.set_webhook()
+
+
+def register_commands(app):
+    app.cli.add_command(start_polling)
+    app.cli.add_command(start_webhook)

system/db.py

@@ -0,0 +1,6 @@
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+
+
+db = SQLAlchemy()
+migrate = Migrate()

system/routes.py

@@ -1,9 +1,9 @@
-from flask import Blueprint, current_app
+from flask import Blueprint
 
 
-routes_blueprint = Blueprint('system_routes', __name__)
+system_blueprint = Blueprint('system_routes', __name__)
 
 
-@routes_blueprint.route('/')
+@system_blueprint.route('/')
 def index():
     return 'It works'