错误处理（自定义 API - 已过时）

{
  "success": false,
  "message": "错误描述信息",
  "error_code": "ERROR_CODE",
  "details": {
    "field": "具体错误字段",
    "reason": "错误原因",
    "suggestion": "解决建议"
  }
}

import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.retry import Retry

def create_session():
    session = requests.Session()
    retry = Retry(
        total=3,
        read=3,
        connect=3,
        backoff_factor=0.3,
        status_forcelist=(500, 502, 504)
    )
    adapter = HTTPAdapter(max_retries=retry)
    session.mount('http://', adapter)
    session.mount('https://', adapter)
    return session

# 使用带重试的会话
session = create_session()
response = session.post(url, json=data, headers=headers)

class VEOMonitor:
    def __init__(self):
        self.success_count = 0
        self.failure_count = 0
        self.total_duration = 0
        
    def record_success(self, duration):
        self.success_count += 1
        self.total_duration += duration
        
    def record_failure(self, error_code):
        self.failure_count += 1
        # 记录错误类型用于分析
        
    def get_success_rate(self):
        total = self.success_count + self.failure_count
        return self.success_count / total if total > 0 else 0
        
    def get_average_duration(self):
        return self.total_duration / self.success_count if self.success_count > 0 else 0