Admin at 07:20, 4 September 2019

2019-09-04T07:20:33Z

Admin: Created page with "== Structuring the Project == == Handling Requests == == File Upload ==

@ns.route('/') class Handle(Resource):     @ns.param('data', description='We will just return t..."

2017-02-09T12:02:41Z

Created page with "== Structuring the Project == == Handling Requests == == File Upload == <pre>@ns.route('/') class Handle(Resource): @ns.param('data', description='We will just return t..."

New page

== Structuring the Project ==

== Handling Requests ==

== File Upload ==

<pre>@ns.route('/')
class Handle(Resource):
@ns.param('data', description='We will just return this.', _in='formData', type='string', required=True)
@ns.param('file', description='We will save this as /tmp/test.jpg.', _in='formData', type='file', required=True)
def post(self):
with open('/tmp/test.jpg', 'wb') as f:
f.write(request.files['file'].read())
return {'data': request.form['data']}</pre>

← Older revision		Revision as of 07:20, 4 September 2019
Line 13:		Line 13:
	f.write(request.files['file'].read())		f.write(request.files['file'].read())
	return {'data': request.form['data']}</pre>		return {'data': request.form['data']}</pre>
		+
		+	== "MySQL server has gone away" with (Flask-)SQLAlchemy ==
		+
		+	On infrequently used connections, most cloud hosts kill unused DB connections after some time.
		+
		+	This is a problem if your SQLAlchemy connection pool is not recycled often enough.
		+
		+	You can just lower the recycle time to solve this. It is also good to increase the pool size to handle the case where your load increases (at times):
		+
		+	<pre>app.config['SQLALCHEMY_POOL_SIZE'] = 100
		+	app.config['SQLALCHEMY_POOL_RECYCLE'] = 240</pre>
		+
		+	Default is <code>size = 10, recycle = 7200</code>, but many cloud providers kill inactive connections after about 5 min, thus the 4 min period above.

Short Notes on Flask and Flask-RestPlus - Revision history

Admin at 07:20, 4 September 2019

Admin: Created page with "== Structuring the Project == == Handling Requests == == File Upload ==
@ns.route('/') class Handle(Resource): @ns.param('data', description='We will just return t..."