How to get POSTed JSON in Flask?

Question

I\'m trying to build a simple API using Flask, in which I now want to read some POSTed JSON. I do the POST with the Postman Chrome extension, and the JSON I POST is simply <

Answer 1

Try to use force parameter...

request.get_json(force = True)

Answer 2

The following codes can be used：

@app.route('/api/add_message/<uuid>', methods=['GET', 'POST'])
def add_message(uuid):
  content = request.json['text']
  print content
  return uuid

Here is a screenshot of me getting the json data:

You can see that what is returned is a dictionary type of data.

Answer 3

Assuming that you have posted valid JSON,

@app.route('/api/add_message/<uuid>', methods=['GET', 'POST'])
def add_message(uuid):
    content = request.json
    print content['uuid']
    # Return data as JSON
    return jsonify(content)

Answer 4

You may note that request.json or request.get_json() works only when the "Content-type: application/json" has been added in the header of the request. If you are unable to change the client request configuration, so you can get the body as json like this:

data = json.loads(request.data)