CODEWITHSUNDEEP
jquerypythonajax
Strobe_
Strobe_

Reputation: 515

Flask, receive string from AJAX

I want to try and pass a string from AJAX to Flask, the request is being received, but there doesn't seem to be any data coming through

AJAX:

function scan(){
    var i = $(".btn.btn-default").attr("id");
    var id = i.toString();
    console.log(id);
   $.ajax({
     type: "GET",
     url: '/scan',
     data: id,
     success: function(data) {

     console.log(data);
   }
}); 
}

Python / Flask:

if request.method == 'GET':
    logger.log('request received') #this is printing out successfully
    a = request.data
    if a == 'mystring':
        return 'Successful'

What am I doing wrong? It must be something incredibly simple.

Upvotes: 0

Views: 1784

Answers (1)

A. Vidor
A. Vidor

Reputation: 2550

To quote the jQuery documentation:

data Type: PlainObject or String or Array Data to be sent to the server. It is converted to a query string, if not already a string. It's appended to the url for GET-requests. See processData option to prevent this automatic processing. Object must be Key/Value pairs. If value is an Array, jQuery serializes multiple values with same key based on the value of the traditional setting (described below).

Since you are not supplying a key/value pair to $.ajax, no data is being sent to the server. Instead, try data: {id: id}.

Then, in Flask, you can access this value: request.args['id'] (or request.args.get('id', None) to supply a default value of None).

(Here is the documentation for Request.args.)

Upvotes: 1

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