flask-minijson

An extension for Flask to allow clients to submit data using the minijson codec by providing a Content-Type header of application/minijson.

flask-json is required to be initialized before FlaskMiniJSON, in such a way:

from flask_minijson import FlaskMiniJSON

app = Flask(__name__)
FlaskJSON(app)
FlaskMiniJSON(app)

And you use it like this:

@app.route('/v1', methods=['POST'])
def endpoint():
    json = request.get_json()

if normal JSON is passed, it will be recognized. If minijson is sent by the client, it will be recognized as well.