Get json from request flask
Solution 1
You are sending form encoded data, not JSON. Just setting the content-type doesn't turn your request into JSON. Use json=
to send JSON data.
response = requests.post(url, json={"user": user,"pass": password})
Retrieve the data in Flask with:
data = request.get_json()
Solution 2
I tried executing the same code that you have posted and I was able to fetch values for username
and password
instead of None
.
Solution 3
My initial guess is that since you aren't setting the Content-Type header in your request Flask doesn't understand that it should be able to parse the data. Try adding Content-Type header with the value application/json
and see if that gets you where you want.
Another thing to note is when I hit my login page the browser sets the Content-Type header to
application/x-www-form-urlencoded
and encodes the data as user=asdf&passwd=asdf
lads
Updated on July 12, 2022Comments
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lads almost 2 years
Client code:
import requests import json url = 'http://127.0.0.1:5050/login' user = "newUser" password = "password" headers = {'content-type': 'application/json'} response = requests.post(url, data={"user": user,"pass": password}, headers = headers)
Server code:
from flask import Flask, request, make_response app = Flask(__name__) @app.route('/login', methods=['GET','POST']) def login(): if request.method == 'POST': username = request.form.get("user") password = request.form.get("pass") //more code return make_response("",200) if __name__ == "__main__": app.run(host = "127.0.0.1", port = 5050)
The problem is that my username and password are always None.
I also tried using:
content = request.get_json(force = True) password = content['pass']
and
request.form['user']
When I print the content I have: < Request 'http://127.0.0.1:5050/login' [POST]> .So I cannot find the json send from the client.
EDIT:
I did add json.dumps and used request.get_json() and it worked
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lads about 7 yearsDid you use Python3?
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Afaq about 7 yearsYes, Python 3.4.4
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lads about 7 yearsI added
headers = {'content-type': 'application/json'}
but it is still not working -
Afaq about 7 yearsWhat version of python are you using ?
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lads about 7 yearsI was using Python 2.7.10. Now I tried with Python 3.5.1 but I still get None for username
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Gerad Bottorff about 7 yearsAre you still dumping the dict to a string with json.dumps()?
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user5305519 almost 4 yearsPlease share your code instead of an image of it the next time!