AccessToken error in authorization code grant flow

[tixd70]

import requests

import base64

import urllib.parse

# Replace with your actual credentials

clientID = ''

clientSecret = ''

authorization_code = ''

redirect_uri = ''

# eBay sandbox OAuth token endpoint

token_url = 'https://api.ebay.com/identity/v1/oauth2/token'

# Request headers

headers = {

    'Content-Type': 'application/x-www-form-urlencoded',

    'Authorization': 'Basic ' + base64.b64encode((clientID + ':' + clientSecret).encode()).decode()

}

# Request body parameters

data = {

    'grant_type': 'authorization_code',

    'code': urllib.parse.quote(authorization_code),

    'redirect_uri': redirect_uri

}

# Send POST request to eBay OAuth token endpoint

try:

    response = requests.post(token_url, headers=headers, data=data)

    response.raise_for_status()  # Raise an exception for bad responses (4xx or 5xx)

    # Parse the JSON response

    response_data = response.json()

    # Extract the access token

    access_token = response_data.get('access_token')

    expires_in = response_data.get('expires_in')

    token_type = response_data.get('token_type')

    print(f"Access Token: {access_token}")

    print(f"Expires In: {expires_in} seconds")

    print(f"Token Type: {token_type}")

except requests.exceptions.HTTPError as http_err:

    print(f"HTTP error occurred: {http_err}")

    print(f"Response status code: {response.status_code}")

    print(f"Response text: {response.text}")

except Exception as err:

    print(f"Other error occurred: {err}")

-----------------------------------------------------

HTTP error occurred: 400 Client Error: Bad Request for url: https://api.ebay.com/identity/v1/oauth2/token
Response status code: 400
Response text: {"error":"invalid_grant","error_description":"the provided authorization grant code is invalid or was issued to another client"}

I tried to get access_token in authorization grant flow after get authoriztion_code.
But I can't get token.

[developer_support@ebay]

Hi @tixd70,

The authorization code returned from the authorization code grant is valid for 299 seconds. Use the authorization code before it expires to obtain a User access token.

Tip: The authorization code returned by eBay is URL-encoded. This value must be URL-encoded when you pass the value in the code parameter of the authorization code grant request. However, if the method you use to make the request URL-encodes the values you pass, then you must URL-decode the authorization code before using it the authorization code grant request.