Andrew K. Choi
24c1a0c85c
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621 lines
25 KiB
Python
621 lines
25 KiB
Python
import asyncio
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import os
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import time
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from typing import Dict, Any, Optional, List
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import httpx
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from fastapi import Depends, FastAPI, HTTPException, Request
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import JSONResponse
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from fastapi.openapi.utils import get_openapi
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from pydantic import BaseModel, Field
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from shared.config import settings
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from services.user_service.schemas import UserCreate, UserLogin, UserResponse, UserUpdate, Token
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# Импортируем схемы для экстренных контактов
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class EmergencyContactBase(BaseModel):
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name: str = Field(..., min_length=1, max_length=100)
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phone_number: str = Field(..., min_length=5, max_length=20)
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relationship: Optional[str] = Field(None, max_length=50)
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notes: Optional[str] = Field(None, max_length=500)
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class EmergencyContactCreate(EmergencyContactBase):
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pass
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class EmergencyContactUpdate(BaseModel):
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name: Optional[str] = Field(None, min_length=1, max_length=100)
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phone_number: Optional[str] = Field(None, min_length=5, max_length=20)
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relationship: Optional[str] = Field(None, max_length=50)
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notes: Optional[str] = Field(None, max_length=500)
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class EmergencyContactResponse(EmergencyContactBase):
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id: int
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uuid: str
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user_id: int
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class Config:
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from_attributes = True
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app = FastAPI(title="API Gateway", version="1.0.0", openapi_url="/api/openapi.json")
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# CORS middleware
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app.add_middleware(
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CORSMiddleware,
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allow_origins=settings.CORS_ORIGINS,
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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# Service registry
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SERVICES = {
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"users": os.getenv("USER_SERVICE_URL", "http://localhost:8001"),
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"emergency": os.getenv("EMERGENCY_SERVICE_URL", "http://localhost:8002"),
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"location": os.getenv("LOCATION_SERVICE_URL", "http://localhost:8003"),
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"calendar": os.getenv("CALENDAR_SERVICE_URL", "http://localhost:8004"),
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"notifications": os.getenv("NOTIFICATION_SERVICE_URL", "http://localhost:8005"),
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}
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# Rate limiting (simple in-memory implementation)
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request_counts: Dict[str, Dict[str, int]] = {}
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RATE_LIMIT_REQUESTS = 100 # requests per minute
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RATE_LIMIT_WINDOW = 60 # seconds
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def get_client_ip(request: Request) -> str:
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"""Get client IP address"""
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x_forwarded_for = request.headers.get("X-Forwarded-For")
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if x_forwarded_for:
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return x_forwarded_for.split(",")[0].strip()
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return request.client.host if request.client else "127.0.0.1"
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def is_rate_limited(client_ip: str) -> bool:
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"""Check if client is rate limited"""
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current_time = int(time.time())
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window_start = current_time - RATE_LIMIT_WINDOW
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if client_ip not in request_counts:
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request_counts[client_ip] = {}
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# Clean old entries
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request_counts[client_ip] = {
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timestamp: count
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for timestamp, count in request_counts[client_ip].items()
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if int(timestamp) > window_start
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}
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# Count requests in current window
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total_requests = sum(request_counts[client_ip].values())
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if total_requests >= RATE_LIMIT_REQUESTS:
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return True
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# Add current request
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timestamp_key = str(current_time)
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request_counts[client_ip][timestamp_key] = (
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request_counts[client_ip].get(timestamp_key, 0) + 1
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)
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return False
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async def proxy_request(
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service_url: str,
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path: str,
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method: str,
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headers: dict,
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body: Optional[bytes] = None,
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params: Optional[dict] = None,
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user_create: Optional[UserCreate] = None,
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user_update: Optional[UserUpdate] = None,
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user_login: Optional[UserLogin] = None,
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emergency_contact_create: Optional[EmergencyContactCreate] = None,
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emergency_contact_update: Optional[EmergencyContactUpdate] = None
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):
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"""Proxy request to microservice"""
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url = f"{service_url}{path}"
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# Для отладки
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print(f"Proxy request to: {url}, method: {method}")
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if body:
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print(f"Request body: {body.decode('utf-8')[:100]}...")
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# Remove hop-by-hop headers
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filtered_headers = {
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k: v
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for k, v in headers.items()
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if k.lower()
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not in [
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"host",
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"connection",
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"upgrade",
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"proxy-connection",
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"proxy-authenticate",
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"proxy-authorization",
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"te",
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"trailers",
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"transfer-encoding",
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]
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}
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async with httpx.AsyncClient(timeout=30.0) as client:
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try:
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response = await client.request(
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method=method,
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url=url,
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headers=filtered_headers,
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content=body,
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params=params,
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)
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# Для отладки
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print(f"Response status: {response.status_code}")
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if response.status_code >= 400:
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print(f"Error response: {response.text}")
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return response
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except httpx.TimeoutException:
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print(f"Timeout error for {url}")
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raise HTTPException(status_code=504, detail="Service timeout")
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except httpx.ConnectError:
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print(f"Connection error for {url}")
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raise HTTPException(status_code=503, detail="Service unavailable")
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except Exception as e:
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print(f"Proxy error for {url}: {str(e)}")
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raise HTTPException(status_code=500, detail=f"Proxy error: {str(e)}")
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@app.middleware("http")
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async def rate_limiting_middleware(request: Request, call_next):
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"""Rate limiting middleware"""
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client_ip = get_client_ip(request)
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# Skip rate limiting for health checks
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if request.url.path.endswith("/health"):
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return await call_next(request)
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if is_rate_limited(client_ip):
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return JSONResponse(status_code=429, content={"detail": "Rate limit exceeded"})
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return await call_next(request)
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# Authentication routes
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@app.post("/api/v1/auth/register", response_model=UserResponse, tags=["Authentication"], summary="Register a new user")
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async def register_user(user_create: UserCreate, request: Request):
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"""Register a new user"""
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async with httpx.AsyncClient(timeout=30.0) as client:
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try:
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response = await client.post(
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f"{SERVICES['users']}/api/v1/auth/register",
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json=user_create.model_dump(),
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headers={
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"Content-Type": "application/json",
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"Accept": "application/json"
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}
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)
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if response.status_code == 200:
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return response.json()
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elif response.status_code == 400:
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# Handle specific registration errors
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try:
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error_json = response.json()
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error_detail = error_json.get("detail", "Registration failed")
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if "Email already registered" in error_detail:
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raise HTTPException(
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status_code=400,
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detail=f"Email {user_create.email} is already registered. Please use a different email or try logging in."
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)
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elif "Username already taken" in error_detail:
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raise HTTPException(
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status_code=400,
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detail=f"Username {user_create.username} is already taken. Please choose a different username."
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)
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else:
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raise HTTPException(status_code=400, detail=error_detail)
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except ValueError:
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# JSON parsing failed
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raise HTTPException(
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status_code=400,
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detail="Registration failed. Please check your input data."
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)
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else:
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error_detail = "Registration failed"
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try:
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error_json = response.json()
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error_detail = error_json.get("detail", error_detail)
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except:
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pass
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raise HTTPException(status_code=response.status_code, detail=error_detail)
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except HTTPException:
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raise
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except Exception as e:
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raise HTTPException(
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status_code=500,
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detail=f"Registration service error: {str(e)}"
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)
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@app.post("/api/v1/auth/login", response_model=Token, tags=["Authentication"], summary="Login user")
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async def login_user(user_login: UserLogin, request: Request):
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"""Login user"""
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async with httpx.AsyncClient(timeout=30.0) as client:
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try:
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response = await client.post(
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f"{SERVICES['users']}/api/v1/auth/login",
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json=user_login.model_dump(),
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headers={
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"Content-Type": "application/json",
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"Accept": "application/json"
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}
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)
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if response.status_code == 200:
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return response.json()
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else:
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error_detail = response.text
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try:
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error_json = response.json()
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error_detail = error_json.get("detail", error_detail)
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except:
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pass
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raise HTTPException(status_code=response.status_code, detail=error_detail)
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except HTTPException:
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raise
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Login error: {str(e)}")
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# Utility endpoints
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@app.get("/api/v1/auth/check-email", tags=["Authentication"], summary="Check if email is available")
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async def check_email_availability(email: str):
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"""Check if email is available for registration"""
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async with httpx.AsyncClient(timeout=10.0) as client:
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try:
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# Make request to user service to check if email exists
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response = await client.get(
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f"{SERVICES['users']}/api/v1/check-email",
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params={"email": email}
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)
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if response.status_code == 200:
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return response.json()
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else:
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return {"available": True, "message": "Email is available"}
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except Exception:
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return {"available": True, "message": "Unable to check availability"}
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@app.get("/api/v1/auth/generate-test-data", tags=["Development"], summary="Generate test user data")
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async def generate_test_user_data():
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"""Generate unique test user data for development"""
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import random
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import string
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# Generate unique email with timestamp
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from datetime import datetime
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timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
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random_suffix = ''.join(random.choices(string.ascii_lowercase + string.digits, k=4))
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return {
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"email": f"test_{timestamp}_{random_suffix}@example.com",
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"username": f"testuser_{timestamp}_{random_suffix}",
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"password": "TestPassword123!",
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"first_name": "Test",
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"last_name": "User",
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"phone": f"+123456{random.randint(1000, 9999)}"
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}
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# User Service routes
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@app.post("/api/v1/users/register", operation_id="user_register", response_model=UserResponse, tags=["Users"], summary="Register a new user")
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@app.get("/api/v1/users/me", operation_id="user_me_get", response_model=UserResponse, tags=["Users"], summary="Get current user profile")
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@app.patch("/api/v1/users/me", operation_id="user_me_patch", response_model=UserResponse, tags=["Users"], summary="Update user profile")
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@app.put("/api/v1/users/me", operation_id="user_me_put", response_model=UserResponse, tags=["Users"], summary="Update user profile")
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@app.get("/api/v1/users/me/emergency-contacts", operation_id="user_emergency_contacts_get", response_model=List[EmergencyContactResponse], tags=["Emergency Contacts"], summary="Get all emergency contacts")
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@app.post("/api/v1/users/me/emergency-contacts", operation_id="user_emergency_contacts_post", response_model=EmergencyContactResponse, tags=["Emergency Contacts"], summary="Create a new emergency contact")
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@app.get("/api/v1/users/me/emergency-contacts/{contact_id}", operation_id="user_emergency_contact_get", response_model=EmergencyContactResponse, tags=["Emergency Contacts"], summary="Get emergency contact by ID")
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@app.delete("/api/v1/users/me/emergency-contacts/{contact_id}", operation_id="user_emergency_contact_delete", tags=["Emergency Contacts"], summary="Delete emergency contact")
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@app.patch("/api/v1/users/me/emergency-contacts/{contact_id}", operation_id="user_emergency_contact_patch", response_model=EmergencyContactResponse, tags=["Emergency Contacts"], summary="Update emergency contact")
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@app.get("/api/v1/users/dashboard", operation_id="user_dashboard_get", tags=["Users"])
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@app.post("/api/v1/users/me/change-password", operation_id="user_change_password", tags=["Users"])
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@app.get("/api/v1/profile", operation_id="user_profile_get", response_model=UserResponse, tags=["Users"])
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@app.put("/api/v1/profile", operation_id="user_profile_update", response_model=UserResponse, tags=["Users"])
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async def user_service_proxy(
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request: Request,
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user_create: Optional[UserCreate] = None,
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user_login: Optional[UserLogin] = None,
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user_update: Optional[UserUpdate] = None,
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emergency_contact_create: Optional[EmergencyContactCreate] = None,
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emergency_contact_update: Optional[EmergencyContactUpdate] = None
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):
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"""Proxy requests to User Service"""
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body = await request.body()
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print(f"User service proxy: {request.url.path}, method: {request.method}")
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try:
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response = await proxy_request(
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SERVICES["users"],
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request.url.path,
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request.method,
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dict(request.headers),
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body,
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dict(request.query_params),
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user_create=user_create,
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user_login=user_login,
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user_update=user_update,
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emergency_contact_create=emergency_contact_create,
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emergency_contact_update=emergency_contact_update
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)
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try:
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response_json = response.json()
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return JSONResponse(
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status_code=response.status_code,
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content=response_json,
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headers={
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k: v
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for k, v in response.headers.items()
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if k.lower() not in ["content-length", "transfer-encoding"]
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},
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)
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except Exception as e:
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print(f"Error processing JSON response: {str(e)}")
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print(f"Response text: {response.text}")
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return JSONResponse(
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status_code=500,
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content={"detail": f"Error processing response: {str(e)}"},
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)
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except Exception as e:
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print(f"Error in user_service_proxy: {str(e)}")
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return JSONResponse(
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status_code=500,
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content={"detail": f"Proxy error: {str(e)}"},
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)
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# Emergency Service routes
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@app.api_route("/api/v1/emergency/alerts", methods=["POST"], operation_id="emergency_alerts_post")
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@app.api_route("/api/v1/emergency/alerts", methods=["GET"], operation_id="emergency_alerts_get")
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@app.api_route("/api/v1/emergency/alerts/my", methods=["GET"], operation_id="emergency_alerts_my_get")
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@app.api_route("/api/v1/emergency/alerts/nearby", methods=["GET"], operation_id="emergency_alerts_nearby_get")
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@app.api_route("/api/v1/emergency/alerts/{alert_id}", methods=["GET"], operation_id="emergency_alert_get")
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@app.api_route("/api/v1/emergency/alerts/{alert_id}", methods=["PATCH"], operation_id="emergency_alert_patch")
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@app.api_route("/api/v1/emergency/alerts/{alert_id}", methods=["DELETE"], operation_id="emergency_alert_delete")
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@app.api_route("/api/v1/emergency/alerts/{alert_id}/cancel", methods=["PATCH"], operation_id="emergency_alert_cancel")
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@app.api_route("/api/v1/emergency/reports", methods=["POST"], operation_id="emergency_reports_post")
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@app.api_route("/api/v1/emergency/reports", methods=["GET"], operation_id="emergency_reports_get")
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@app.api_route("/api/v1/emergency/reports/nearby", methods=["GET"], operation_id="emergency_reports_nearby_get")
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@app.api_route("/api/v1/emergency/reports/{report_id}", methods=["GET"], operation_id="emergency_report_get")
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@app.api_route("/api/v1/emergency/reports/{report_id}", methods=["PATCH"], operation_id="emergency_report_patch")
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@app.api_route("/api/v1/emergency/reports/{report_id}", methods=["DELETE"], operation_id="emergency_report_delete")
|
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async def emergency_service_proxy(request: Request):
|
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"""Proxy requests to Emergency Service"""
|
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body = await request.body()
|
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response = await proxy_request(
|
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SERVICES["emergency"],
|
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request.url.path,
|
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request.method,
|
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dict(request.headers),
|
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body,
|
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dict(request.query_params),
|
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)
|
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return JSONResponse(
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status_code=response.status_code,
|
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content=response.json(),
|
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headers={
|
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k: v
|
||
for k, v in response.headers.items()
|
||
if k.lower() not in ["content-length", "transfer-encoding"]
|
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},
|
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)
|
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|
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|
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# Location Service routes
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@app.api_route("/api/v1/locations/update", methods=["POST"], operation_id="location_update_post")
|
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@app.api_route("/api/v1/locations/last", methods=["GET"], operation_id="location_last_get")
|
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@app.api_route("/api/v1/locations/history", methods=["GET"], operation_id="location_history_get")
|
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@app.api_route("/api/v1/locations/users/nearby", methods=["GET"], operation_id="location_users_nearby_get")
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@app.api_route("/api/v1/locations/safe-places", methods=["GET"], operation_id="location_safe_places_get")
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@app.api_route("/api/v1/locations/safe-places", methods=["POST"], operation_id="location_safe_places_post")
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@app.api_route("/api/v1/locations/safe-places/{place_id}", methods=["GET"], operation_id="location_safe_place_get")
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@app.api_route("/api/v1/locations/safe-places/{place_id}", methods=["PATCH"], operation_id="location_safe_place_patch")
|
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@app.api_route("/api/v1/locations/safe-places/{place_id}", methods=["DELETE"], operation_id="location_safe_place_delete")
|
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async def location_service_proxy(request: Request):
|
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"""Proxy requests to Location Service"""
|
||
body = await request.body()
|
||
response = await proxy_request(
|
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SERVICES["location"],
|
||
request.url.path,
|
||
request.method,
|
||
dict(request.headers),
|
||
body,
|
||
dict(request.query_params),
|
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)
|
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return JSONResponse(
|
||
status_code=response.status_code,
|
||
content=response.json(),
|
||
headers={
|
||
k: v
|
||
for k, v in response.headers.items()
|
||
if k.lower() not in ["content-length", "transfer-encoding"]
|
||
},
|
||
)
|
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|
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|
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# Calendar Service routes
|
||
@app.api_route("/api/v1/calendar/entries", methods=["GET"], operation_id="calendar_entries_get")
|
||
@app.api_route("/api/v1/calendar/entries", methods=["POST"], operation_id="calendar_entries_post")
|
||
@app.api_route("/api/v1/calendar/entries/{entry_id}", methods=["GET"], operation_id="calendar_entry_get")
|
||
@app.api_route("/api/v1/calendar/entries/{entry_id}", methods=["PUT"], operation_id="calendar_entry_put")
|
||
@app.api_route("/api/v1/calendar/entries/{entry_id}", methods=["DELETE"], operation_id="calendar_entry_delete")
|
||
@app.api_route("/api/v1/calendar/cycle-overview", methods=["GET"], operation_id="calendar_cycle_overview_get")
|
||
@app.api_route("/api/v1/calendar/insights", methods=["GET"], operation_id="calendar_insights_get")
|
||
@app.api_route("/api/v1/calendar/reminders", methods=["GET"], operation_id="calendar_reminders_get")
|
||
@app.api_route("/api/v1/calendar/reminders", methods=["POST"], operation_id="calendar_reminders_post")
|
||
@app.api_route("/api/v1/calendar/settings", methods=["GET"], operation_id="calendar_settings_get")
|
||
@app.api_route("/api/v1/calendar/settings", methods=["PUT"], operation_id="calendar_settings_put")
|
||
async def calendar_service_proxy(request: Request):
|
||
"""Proxy requests to Calendar Service"""
|
||
body = await request.body()
|
||
response = await proxy_request(
|
||
SERVICES["calendar"],
|
||
request.url.path,
|
||
request.method,
|
||
dict(request.headers),
|
||
body,
|
||
dict(request.query_params),
|
||
)
|
||
return JSONResponse(
|
||
status_code=response.status_code,
|
||
content=response.json(),
|
||
headers={
|
||
k: v
|
||
for k, v in response.headers.items()
|
||
if k.lower() not in ["content-length", "transfer-encoding"]
|
||
},
|
||
)
|
||
|
||
|
||
# Notification Service routes
|
||
@app.api_route("/api/v1/notifications/devices", methods=["GET"], operation_id="notifications_devices_get")
|
||
@app.api_route("/api/v1/notifications/devices", methods=["POST"], operation_id="notifications_devices_post")
|
||
@app.api_route("/api/v1/notifications/devices/{device_id}", methods=["DELETE"], operation_id="notifications_device_delete")
|
||
@app.api_route("/api/v1/notifications/devices/{device_id}", methods=["GET"], operation_id="notifications_device_get")
|
||
@app.api_route("/api/v1/notifications/preferences", methods=["GET"], operation_id="notifications_preferences_get")
|
||
@app.api_route("/api/v1/notifications/preferences", methods=["POST"], operation_id="notifications_preferences_post")
|
||
@app.api_route("/api/v1/notifications/test", methods=["POST"], operation_id="notifications_test_post")
|
||
@app.api_route("/api/v1/notifications/history", methods=["GET"], operation_id="notifications_history_get")
|
||
async def notification_service_proxy(request: Request):
|
||
"""Proxy requests to Notification Service"""
|
||
body = await request.body()
|
||
response = await proxy_request(
|
||
SERVICES["notifications"],
|
||
request.url.path,
|
||
request.method,
|
||
dict(request.headers),
|
||
body,
|
||
dict(request.query_params),
|
||
)
|
||
return JSONResponse(
|
||
status_code=response.status_code,
|
||
content=response.json(),
|
||
headers={
|
||
k: v
|
||
for k, v in response.headers.items()
|
||
if k.lower() not in ["content-length", "transfer-encoding"]
|
||
},
|
||
)
|
||
|
||
|
||
@app.get("/api/v1/health")
|
||
async def gateway_health_check():
|
||
"""Gateway health check"""
|
||
return {"status": "healthy", "service": "api-gateway"}
|
||
|
||
|
||
@app.get("/api/v1/services-status")
|
||
async def check_services_status():
|
||
"""Check status of all microservices"""
|
||
service_status = {}
|
||
|
||
async def check_service(name: str, url: str):
|
||
try:
|
||
async with httpx.AsyncClient(timeout=5.0) as client:
|
||
response = await client.get(f"{url}/api/v1/health")
|
||
service_status[name] = {
|
||
"status": "healthy" if response.status_code == 200 else "unhealthy",
|
||
"response_time_ms": response.elapsed.total_seconds() * 1000,
|
||
"url": url,
|
||
}
|
||
except Exception as e:
|
||
service_status[name] = {"status": "unhealthy", "error": str(e), "url": url}
|
||
|
||
# Check all services concurrently
|
||
tasks = [check_service(name, url) for name, url in SERVICES.items()]
|
||
await asyncio.gather(*tasks)
|
||
|
||
all_healthy = all(
|
||
status["status"] == "healthy" for status in service_status.values()
|
||
)
|
||
|
||
return {
|
||
"gateway_status": "healthy",
|
||
"all_services_healthy": all_healthy,
|
||
"services": service_status,
|
||
}
|
||
|
||
|
||
@app.get("/")
|
||
async def root():
|
||
"""Root endpoint with API information"""
|
||
return {
|
||
"service": "Women Safety App API Gateway",
|
||
"version": "1.0.0",
|
||
"status": "running",
|
||
"endpoints": {
|
||
"auth": "/api/v1/auth/register, /api/v1/auth/login",
|
||
"users": "/api/v1/users/me, /api/v1/users/dashboard",
|
||
"emergency": "/api/v1/emergency/alerts, /api/v1/emergency/reports",
|
||
"location": "/api/v1/locations/update, /api/v1/locations/safe-places",
|
||
"calendar": "/api/v1/calendar/entries, /api/v1/calendar/cycle-overview",
|
||
"notifications": "/api/v1/notifications/devices, /api/v1/notifications/history",
|
||
},
|
||
"docs": "/docs",
|
||
}
|
||
|
||
|
||
# Переопределение схемы OpenAPI
|
||
def custom_openapi():
|
||
if app.openapi_schema:
|
||
return app.openapi_schema
|
||
|
||
openapi_schema = get_openapi(
|
||
title="Women's Safety App API Gateway",
|
||
version="1.0.0",
|
||
description="API Gateway для Women's Safety App с поддержкой микросервисной архитектуры",
|
||
routes=app.routes,
|
||
)
|
||
|
||
# Добавление примеров запросов для маршрутов
|
||
if "paths" in openapi_schema:
|
||
if "/api/v1/auth/register" in openapi_schema["paths"]:
|
||
request_example = {
|
||
"username": "user123",
|
||
"email": "user@example.com",
|
||
"password": "Password123!",
|
||
"full_name": "John Doe",
|
||
"phone_number": "+7123456789"
|
||
}
|
||
path_item = openapi_schema["paths"]["/api/v1/auth/register"]
|
||
for method in path_item:
|
||
if "requestBody" in path_item[method]:
|
||
path_item[method]["requestBody"]["content"]["application/json"]["example"] = request_example
|
||
|
||
if "/api/v1/auth/login" in openapi_schema["paths"]:
|
||
login_example = {
|
||
"username": "user123",
|
||
"password": "Password123!"
|
||
}
|
||
path_item = openapi_schema["paths"]["/api/v1/auth/login"]
|
||
for method in path_item:
|
||
if "requestBody" in path_item[method]:
|
||
path_item[method]["requestBody"]["content"]["application/json"]["example"] = login_example
|
||
|
||
app.openapi_schema = openapi_schema
|
||
return app.openapi_schema
|
||
|
||
app.openapi = custom_openapi
|
||
|
||
if __name__ == "__main__":
|
||
import uvicorn
|
||
|
||
uvicorn.run(app, host="0.0.0.0", port=8000)
|