aiogram/aiogram/api/client/session/aiohttp.py

62 lines
2 KiB
Python

from __future__ import annotations
import copy
from typing import Any, Callable, Dict, Optional, TypeVar, cast
from aiohttp import ClientSession, FormData
from aiogram.api.methods import Request, TelegramMethod
from .base import PRODUCTION, BaseSession, TelegramAPIServer
T = TypeVar("T")
class AiohttpSession(BaseSession):
def __init__(
self,
api: TelegramAPIServer = PRODUCTION,
json_loads: Optional[Callable] = None,
json_dumps: Optional[Callable] = None,
):
super(AiohttpSession, self).__init__(api=api, json_loads=json_loads, json_dumps=json_dumps)
self._session: Optional[ClientSession] = None
async def create_session(self) -> ClientSession:
if self._session is None or self._session.closed:
self._session = ClientSession()
return self._session
async def close(self):
if self._session is not None and not self._session.closed:
await self._session.close()
def build_form_data(self, request: Request):
form = FormData(quote_fields=False)
for key, value in request.data.items():
if value is None:
continue
form.add_field(key, self.prepare_value(value))
if request.files:
for key, value in request.files.items():
form.add_field(key, value, filename=value.filename or key)
return form
async def make_request(self, token: str, call: TelegramMethod[T]) -> T:
session = await self.create_session()
request = call.build_request()
url = self.api.api_url(token=token, method=request.method)
form = self.build_form_data(request)
async with session.post(url, data=form) as resp:
raw_result = await resp.json(loads=self.json_loads)
response = call.build_response(raw_result)
self.raise_for_status(response)
return cast(T, response.result)
async def __aenter__(self) -> AiohttpSession:
await self.create_session()
return self