54 lines
2.5 KiB
Python
54 lines
2.5 KiB
Python
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import json
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import httpx
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from typing import Optional, Dict, Any
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from mooc.core.config import settings
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class WeChatClient:
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def __init__(self, appid: str = None, appsecret: str = None):
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self.appid = appid or settings.WECHAT_APPID
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self.appsecret = appsecret or settings.WECHAT_APPSECRET
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self._access_token = ""
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async def _get(self, url: str) -> Dict[str, Any]:
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async with httpx.AsyncClient() as client:
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response = await client.get(url, verify=False)
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return response.json()
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async def _post(self, url: str, data: Dict[str, Any]) -> Dict[str, Any]:
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async with httpx.AsyncClient() as client:
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response = await client.post(url, json=data, verify=False)
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return response.json()
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async def get_access_token(self) -> str:
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"""获取access token"""
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url = f"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={self.appid}&secret={self.appsecret}"
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result = await self._get(url)
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if "access_token" in result:
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self._access_token = result["access_token"]
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return self._access_token
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raise Exception(f"Failed to get access token: {result}")
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async def code2session(self, code: str) -> Dict[str, Any]:
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"""小程序登录凭证校验"""
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url = f"https://api.weixin.qq.com/sns/jscode2session?appid={self.appid}&secret={self.appsecret}&js_code={code}&grant_type=authorization_code"
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result = await self._get(url)
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if "errcode" in result and result["errcode"] != 0:
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raise Exception(f"Code2Session failed: {result['errmsg']}")
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return result
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async def get_unlimited_qrcode(self, scene: str, access_token: str = None) -> bytes:
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"""获取小程序码"""
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if not access_token:
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access_token = await self.get_access_token()
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url = f"https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token={access_token}"
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data = {"scene": scene}
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async with httpx.AsyncClient() as client:
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response = await client.post(url, json=data, verify=False)
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return response.content
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async def send_template_message(self, data: Dict[str, Any], access_token: str = None) -> Dict[str, Any]:
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"""发送订阅消息"""
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if not access_token:
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access_token = await self.get_access_token()
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url = f"https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token={access_token}"
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return await self._post(url, data)
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