falconry/falcon

User guide/FAQ: Send JSON & URL-encoded requests to the App

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#1,636 opened on Jan 11, 2020

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Description

Hey, I'm trying to fetch out the data with JSON I've spent way too much time on google and tried every single solution with no success.. when I send the request it raises an json.decoder.JSONDecodeError Exception. maybe can you help?

class TextOcrRes:
    def on_post(self, req, resp):
        """Handles Text POST requests"""
        json_data = json.loads(req.bounded_stream.read().decode("utf-8")) # json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
        print(json_data)

What I'm sending:

r = requests.post("http://x.xx.xx.xx/translate", data={'image_data':'message'}) I'm on python 3.6.8

Contributor guide

Tech stack
python
Domain
backendapi
Issue type
documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic PythonHTTP requests understanding
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80
Research direction
The user is trying to send JSON data but uses the 'data' parameter in requests.post, which sends URL encoded form data. The server code expects JSON via json.loads on the raw stream. The solution is to either send JSON using the 'json' parameter in requests or change the server to handle form data. For documentation purposes, adding a FAQ entry on how to send JSON requests to Falcon apps would help. See Falcon documentation on request parsing: https://falcon.readthedocs.io/en/stable/api/request.html.
User guide/FAQ: Send JSON & URL-encoded requests to the App · falconry/falcon#1636 | Good First Issue