FRAMEWORK » FLASK

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Reference:flask.palletsprojects.com

Request ​

Usage ​

The import bellow is required:

python
from flask import request

Arguments access ​

URL arguments (usually on GET requests):

python
request.args.get('arg_name')
request.args.getlist('status')

Form parameters (usually on POST requests):

python
request.form.get('param_name')

JSON data (usually on POST, PUT or Ajax requests):

python
request.get_json()
request.json.get('arg_name')

Response ​

Common imports:

python
from flask import jsonify, Response

Status code ​

python
return Response('', status=204)
return jsonify({}), 204

Headers ​

Setting mimetype also changes the value of the header Content-Type.

python
@app.route('/', methods=['GET'])
def index():
    return Response('<?xml version="1.0" encoding="UTF-8"?>\n<html></html>', mimetype='text/xml')

Return file ​

python
from flask import send_from_directory

@app.route('/', methods=['GET'])
def index():
    return send_from_directory(directory=app.root_path, filename='sound.mp3')