Files
AutoMarket/backend/ozon_api/client.py

69 lines
2.8 KiB
Python

import os
import requests
import time
from typing import Dict, Any, Optional
from .exceptions import OzonAPIError, OzonAuthError, OzonRateLimitError, OzonBadRequestError
class OzonClient:
"""Base client for interacting with Ozon API."""
BASE_URL = "https://api-seller.ozon.ru"
def __init__(self, client_id: Optional[str] = None, api_key: Optional[str] = None):
# Fetch from env if not provided
self.client_id = client_id or os.getenv('OZON_CLIENT_ID')
self.api_key = api_key or os.getenv('OZON_API_KEY')
if not self.client_id or not self.api_key:
raise ValueError("OZON_CLIENT_ID and OZON_API_KEY must be provided")
self.session = requests.Session()
self.session.headers.update({
"Client-Id": self.client_id,
"Api-Key": self.api_key,
"Content-Type": "application/json"
})
def request(self, method: str, path: str, data: Optional[Dict[str, Any]] = None, params: Optional[Dict[str, Any]] = None, retries: int = 3) -> Dict[str, Any]:
"""Perform HTTP request to Ozon API with automatic retries."""
url = f"{self.BASE_URL}{path}"
for attempt in range(retries):
try:
response = self.session.request(method, url, json=data, params=params)
# Check rate limiting
if response.status_code == 429:
if attempt < retries - 1:
time.sleep(2 ** attempt) # Exponential backoff
continue
raise OzonRateLimitError("Rate limit exceeded")
if response.status_code in (401, 403):
raise OzonAuthError(f"Authentication failed: {response.text}")
if response.status_code == 400:
raise OzonBadRequestError(f"Bad Request: {response.text}")
response.raise_for_status()
# Ozon usually wraps responses in "result" key, but not always.
# We return the whole JSON parsed response.
if response.content:
return response.json()
return {}
except requests.exceptions.RequestException as e:
if attempt < retries - 1:
time.sleep(2 ** attempt)
continue
raise OzonAPIError(f"Request failed: {str(e)}")
raise OzonAPIError("Request failed after max retries")
def post(self, path: str, data: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
return self.request("POST", path, data=data)
def get(self, path: str, params: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
return self.request("GET", path, params=params)