Sending JSON request with Python

Question

I'm new to web services and am trying to send the following JSON based request using a python script:

http://myserver/emoncms2/api/post?apikey=xxxxxxxxxxxxx&json={power:290.4,temperature:19.4} 

If I paste the above into a browser, it works as expected. However, I am struggling to send the request from Python. The following is what I am trying:

import json import urllib2 data = {'temperature':'24.3'} data_json = json.dumps(data) host = "http://myserver/emoncms2/api/post" req = urllib2.Request(host, 'GET', data_json, {'content-type': 'application/json'}) response_stream = urllib2.urlopen(req) json_response = response_stream.read() 

How do I add the apikey data into the request?

Thank you!

Answer 1

Instead of using urllib2, you can use requests. This new python lib is really well written and it's easier and more intuitive to use.

To send your json data you can use something like the following code:

import json import requests data = {'temperature':'24.3'} data_json = json.dumps(data) payload = {'json_payload': data_json, 'apikey': 'YOUR_API_KEY_HERE'} r = requests.get('http://myserver/emoncms2/api/post', data=payload) 

You can then inspect r to obtain an http status code, content, etc