将数据从javascript发送到python

Question

I use the below code to send data (GET) from python to javascript.

in javascript:

$.get('http://localhost:5000/api/scan').success(function(res) {
        obj = JSON.parse(res);
        if(obj['channel'] == "1"){
        document.getElementById("channelZero").innerHTML = "1";
        }});

in python:

channels_str =  channels.getvalue()
data['channel'] = channels_str
return dumps(data)

how can I send data from javascript to python?

Answer 1

In case

$.get('http://localhost:5000/api/scan').success(function(res) {
    //your code
}});

you request scan , but if you add "?who=Masha" you send a parameter who with a value "Masha" as get request parameter.

$.get('http://localhost:5000/api/scan?who=Masha').success(function(res) {
    //your code
}});

Then if your python get response (typically def do_GET(self): ) has:

data['channel'] = urlparse.parse_qs(urlparse.urlparse(self.path).query).get('who', None)

---

Note that you need to import urlparse (In Python3, you'd use urllib.parse)

import urlparse

From w3schools

The GET Method

Note that the query string (name/value pairs) is sent

in the URL of a GET request:

 /test/demo_form.asp?name1=value1&name2=value2 

Some other notes on GET requests:

• GET requests can be cached
• GET requests remain in the browser history
• GET requests can be bookmarked
• GET requests should never be used when dealing with sensitive data
• GET requests have length restrictions
• GET requests should be used only to retrieve data