如何使用 MyAnimeList API 修复在 Python 中交易代币代码时出现的“无效请求”错误

解决方案 1：使用 Python 中的 MyAnimeList API 解决无效令牌交换问题

使用 requests 模块进行后端令牌交换和用户数据检索的 Python 脚本

# Import necessary modules
import requests
from django.conf import settings
from django.shortcuts import redirect
from django.contrib.auth import login
from .models import User, ExternalUser
# Callback function after MyAnimeList authorization
def mal_callback(request):
    # Retrieve authorization code from request
    code = request.GET.get('code')
    # Prepare data for token exchange
    token_data = {
        'client_id': settings.MAL_CLIENT_ID,
        'client_secret': settings.MAL_CLIENT_SECRET,
        'code': code,
        'grant_type': 'authorization_code',
        'redirect_uri': settings.REDIRECT_URI
    }
    # Exchange code for access token
    response = requests.post('https://myanimelist.net/v1/oauth2/token', data=token_data)
    token_response = response.json()
    # Check for access token in response
    if 'access_token' not in token_response:
        error_message = token_response.get('error', 'Unknown error')
        logger.error(f"Error exchanging code for token: {error_message}")
        return redirect('/error/')
    # Log token response for debugging
    access_token = token_response['access_token']
    # Fetch user data
    user_info_response = requests.get('https://api.myanimelist.net/v2/users/@me',
                                   headers={'Authorization': f'Bearer {access_token}'}).json()
    # Verify user information
    if 'name' not in user_info_response:
        error_message = user_info_response.get('error', 'Unknown error')
        logger.error(f"Error retrieving user info: {error_message}")
        return redirect('/error/')
    # Create or get the user in database
    username = user_info_response['name']
    user, created = User.objects.get_or_create(username=username)
    # Update or create ExternalUser model entry
    ExternalUser.objects.update_or_create(
        user=user,
        defaults={'provider': 'MAL', 'access_token': access_token,
                 'refresh_token': token_response.get('refresh_token'),
                 'token_expires_at': token_response.get('expires_at')})
    # Log user in and redirect to homepage
    login(request, user)
    return redirect('/') # Redirect to home

解决方案 2：使用具有错误处理和验证功能的请求的重构方法

改进了 Python 脚本，用于通过重试和验证处理令牌交换

import requests
from django.shortcuts import redirect
from django.conf import settings
from django.contrib.auth import login
from .models import User, ExternalUser
import logging
logger = logging.getLogger(__name__)
def mal_callback(request):
    code = request.GET.get('code')
    if not code:
        logger.error("No authorization code provided")
        return redirect('/error/')
    token_data = {
        'client_id': settings.MAL_CLIENT_ID,
        'client_secret': settings.MAL_CLIENT_SECRET,
        'code': code,
        'grant_type': 'authorization_code',
        'redirect_uri': settings.REDIRECT_URI
    }
    # Attempt to get token with retries
    try:
        response = requests.post('https://myanimelist.net/v1/oauth2/token', data=token_data)
        response.raise_for_status()
        token_response = response.json()
    except requests.exceptions.HTTPError as e:
        logger.error(f"HTTPError during token exchange: {e}")
        return redirect('/error/')
    if 'access_token' not in token_response:
        logger.error(f"Token error: {token_response.get('error', 'Unknown error')}")
        return redirect('/error/')
    access_token = token_response['access_token']
    # Retrieve user info
    user_info_response = requests.get('https://api.myanimelist.net/v2/users/@me',
                                   headers={'Authorization': f'Bearer {access_token}'})
    user_info = user_info_response.json()
    if 'name' not in user_info:
        logger.error("Failed to retrieve user info")
        return redirect('/error/')
    username = user_info['name']
    user, created = User.objects.get_or_create(username=username)
    ExternalUser.objects.update_or_create(user=user,
        defaults={'provider': 'MAL',
                 'access_token': access_token,
                 'refresh_token': token_response.get('refresh_token'),
                 'token_expires_at': token_response.get('expires_at')})
    login(request, user)
    return redirect('/') # Redirect to homepage

1. 详细的 MyAnimeList API 文档涵盖 OAuth2 身份验证流程、错误处理和用户数据检索： MyAnimeList API 文档
2. Python requests 库文档，包含有关发送 HTTP 请求、处理响应和管理错误的见解： Python 请求文档
3. 有关用户身份验证的 Django 文档，包括诸如 和 用于用户会话管理和数据库处理： Django 身份验证文档
4. OAuth2 最佳实践指南，涵盖令牌管理、安全性和身份验证过程中的常见错误： OAuth2 概述和最佳实践