Method Not Allowed flask error 405

This is because you only allow POST requests when defining your route.

When you visit /registrazione in your browser, it will do a GET request first. Only once you submit the form your browser will do a POST. So for a self-submitting form like yours, you need to handle both.

Using

@app.route('/registrazione', methods=['GET', 'POST']) 

should work.

Just for people reading on it now.You have to render the /registrazione first, befor you can access the form data. Just write.

@app.route("/registrazione")    def render_registrazione() -> "html":        return render_template("registrazione.html")

before you define def registration(). Sequence is key. You can't access data before the even are available. This is my understanding of the problem.

Example of a flask app using wsgi with JQuery, Ajax and json:

activecalls.py

from flask import Flask, jsonifyapplication = Flask(__name__, static_url_path='')@application.route('/')def activecalls():    return application.send_static_file('activecalls/active_calls_map.html')@application.route('/_getData', methods=['GET', 'POST'])def getData():    #hit the data, package it, put it into json.    #ajax would have to hit this every so often to get latest data.    arr = {}    arr["blah"] = []    arr["blah"].append("stuff");    return jsonify(response=arr)if __name__ == '__main__':    application.run()

Javascript json, /static/activecalls/active_calls_map.html:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script><script>$.ajax({    //url : "http://dev.consumerunited.com/wsgi/activecalls.py/_getData",    url : "activecalls.py/_getData",    type: "POST",    data : formData,    datatype : "jsonp",    success: function(data, textStatus, jqXHR)    {        //data - response from server         alert("'" + data.response.blah + "'");    },    error: function (jqXHR, textStatus, errorThrown)    {         alert("error: " + errorThrown);    }});</script>

When you run this. The alert box prints: "stuff".