Is it possible to make POST request in Flask?
For the record, here's general code to make a POST request from Python:
#make a POST request
import requests
dictToSend = {'question':'what is the answer?'}
res = requests.post('http://localhost:5000/tests/endpoint', json=dictToSend)
print 'response from server:',res.text
dictFromServer = res.json()
Notice that we are passing in a Python dict using the json=
option. This conveniently tells the requests library to do two things:
- serialize the dict to JSON
- write the correct MIME type ('application/json') in the HTTP header
And here's a Flask application that will receive and respond to that POST request:
#handle a POST request
from flask import Flask, render_template, request, url_for, jsonify
app = Flask(__name__)
@app.route('/tests/endpoint', methods=['POST'])
def my_test_endpoint():
input_json = request.get_json(force=True)
# force=True, above, is necessary if another developer
# forgot to set the MIME type to 'application/json'
print 'data from client:', input_json
dictToReturn = {'answer':42}
return jsonify(dictToReturn)
if __name__ == '__main__':
app.run(debug=True)
Yes, to make a POST request you can use urllib
, see the documentation.
I would however recommend to use the requests module instead.
EDIT:
I suggest you refactor your code to extract the common functionality:
@app.route("/test", methods=["POST"])
def test():
return _test(request.form["test"])
@app.route("/index")
def index():
return _test("My Test Data")
def _test(argument):
return "TEST: %s" % argument