init

.dockerignore

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+.git
+.venv
+__pycache__
+*.pyc
+.env

.env.example

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+TELEGRAM_BOT_TOKEN=
+TELEGRAM_CHAT_ID=
+TELEGRAM_MESSAGE_THREAD_ID=

.gitignore

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+.venv/
+__pycache__/
+*.py[cod]
+*$py.class
+.Python
+*.egg-info/
+.eggs/
+dist/
+build/
+.env
+.idea/
+.vscode/
+*.swp
+*.swo

Dockerfile

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+FROM python:3.12-slim-bookworm
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY main.py settings.py .
+
+EXPOSE 8000
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

docker-compose.yml

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+services:
+  app:
+    build: .
+    ports:
+      - '8000:8000'
+    env_file:
+      - .env
+    restart: unless-stopped

main.py

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+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI, HTTPException
+from httpx import AsyncClient
+from pydantic import BaseModel, EmailStr
+
+from settings import settings
+
+
+class NotifyBody(BaseModel):
+    name: str
+    email: EmailStr
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    app.state.http = AsyncClient(timeout=30.0)
+    yield
+    await app.state.http.aclose()
+
+
+
+app = FastAPI(lifespan=lifespan)
+
+
+async def send_telegram_message(client: AsyncClient, text: str) -> None:
+    url = f'https://api.telegram.org/bot{settings.telegram_bot_token}/sendMessage'
+    payload = {
+        'chat_id': settings.telegram_chat_id,
+        'message_thread_id': settings.telegram_message_thread_id,
+        'text': text,
+    }
+    resp = await client.post(url, json=payload)
+    data = resp.json()
+    if resp.status_code != 200 or not data.get('ok'):
+        detail = data.get('description', resp.text)
+        raise HTTPException(status_code=502, detail=detail)
+
+
+@app.post('/notify')
+async def notify(body: NotifyBody):
+    text = f'Новая заявка\nИмя: {body.name}\nПочта: {body.email}'
+    try:
+        await send_telegram_message(app.state.http, text)
+    except HTTPException:
+        raise
+    except Exception as exc:
+        raise HTTPException(status_code=502, detail=str(exc)) from exc
+    return {'ok': True}

requirements.txt

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+fastapi>=0.115.0
+uvicorn[standard]>=0.32.0
+pydantic-settings>=2.6.0
+httpx>=0.27.0
+email-validator>=2.2.0

settings.py

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+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_file='.env', env_file_encoding='utf-8')
+
+    telegram_bot_token: str
+    telegram_chat_id: str
+    telegram_message_thread_id: int
+
+
+settings = Settings()