Reputation:

"invalid_grant error processing request" while making a reddit bot

Im making a reddit bot that replies something to a specific comment.

But Im getting this error : invalid_grant error processing request

and I can't find the solution.

here is my code, Im using Python.

import praw
import time
import config

def login():
    r = praw.Reddit(user_agent = "test bot",
                username = config.username,
                password = config.password,
                client_id = config.client_id,
                client_secret = config.client_secret)
    print("logged in")
    return r


cache = []

def run_bot(r):
    subreddit = r.subreddit("Test")
    comments = subreddit.get_comments(limit=25)
    for comment in comments:
        comment_text = comment.body.lower()
        if "xD" in comment_text and comment.id not in cache:
            comment.reply("xD")
            cache.append(comment.id)

while True:
    r = login()
    run_bot(r)
    time.sleep(5)

traceback:

    logged in
Traceback (most recent call last):
  File "xdbot.py", line 28, in <module>
    run_bot(r)
  File "xdbot.py", line 19, in run_bot
    comments = subreddit.get_comments(limit=25)
  File "D:\Programming\Phyton\lib\site-packages\praw\models\reddit\base.py", line 31, in __getattr__
    self._fetch()
  File "D:\Programming\Phyton\lib\site-packages\praw\models\reddit\base.py", line 66, in _fetch
    params=self._info_params)
  File "D:\Programming\Phyton\lib\site-packages\praw\reddit.py", line 367, in get
    data = self.request('GET', path, params=params)
  File "D:\Programming\Phyton\lib\site-packages\praw\reddit.py", line 451, in request
    params=params)
  File "D:\Programming\Phyton\lib\site-packages\prawcore\sessions.py", line 174, in request
    params=params, url=url)
  File "D:\Programming\Phyton\lib\site-packages\prawcore\sessions.py", line 108, in _request_with_retries
    data, files, json, method, params, retries, url)
  File "D:\Programming\Phyton\lib\site-packages\prawcore\sessions.py", line 93, in _make_request
    params=params)
  File "D:\Programming\Phyton\lib\site-packages\prawcore\rate_limit.py", line 32, in call
    kwargs['headers'] = set_header_callback()
  File "D:\Programming\Phyton\lib\site-packages\prawcore\sessions.py", line 134, in _set_header_callback
    self._authorizer.refresh()
  File "D:\Programming\Phyton\lib\site-packages\prawcore\auth.py", line 328, in refresh
    password=self._password)
  File "D:\Programming\Phyton\lib\site-packages\prawcore\auth.py", line 142, in _request_token
    payload.get('error_description'))
prawcore.exceptions.OAuthException: invalid_grant error processing request

Upvotes: 11

Answers (6)

tobahhh

Reputation: 381

This error seems to pop up sometimes if you're using a Reddit account created using OAuth with a 3rd party service ("Sign in with Google" or "Sign in with Apple").

You may need to create a Reddit password (separate from your 3rd party service) or disconnect those services entirely. Both can be done on the Reddit website here.

Upvotes: 0

user1465073

Reputation: 325

I encountered this error today, the reason being is that I enabled two-factor authentication with my Reddit account.

Removing the two-factor authentication made my bot/ app progress again.

You can also address it with the suggestion above: https://stackoverflow.com/a/71905094/1465073

Upvotes: 1

Abd Alhade Ahmad

Reputation: 21

You might be using two-factor authentication with this account. You have to disable it, or pass the 2FA code with the password in one stiring separated by a colon, like this:

r = praw.Reddit(user_agent = "test bot",
    username = config.username,
    password = f"{config.password}:{2FA-Code}",
    client_id = config.client_id,
    client_secret = config.client_secret)

See this in the docs: https://praw.readthedocs.io/en/latest/getting_started/authentication.html#two-factor-authentication

Upvotes: 2