Initial project commit

server/app/api/v1/endpoints/map_proxy.py

@@ -0,0 +1,80 @@
+import hashlib
+
+import httpx
+from fastapi import APIRouter, Query, Request
+
+from app.core.config import settings
+
+router = APIRouter()
+
+CACHE_TTL = 3600
+
+
+def _cache_key(prefix: str, **kwargs: str) -> str:
+    raw = "&".join(f"{k}={v}" for k, v in sorted(kwargs.items()) if v)
+    return f"map:{prefix}:{hashlib.md5(raw.encode()).hexdigest()}"
+
+
+@router.get("/geocoder/reverse")
+async def reverse_geocode(
+    request: Request,
+    location: str = Query(..., description="lat,lng"),
+):
+    redis = request.app.state.redis
+    ck = _cache_key("rev", location=location)
+    if redis:
+        cached = await redis.get(ck)
+        if cached:
+            import json
+            return json.loads(cached)
+
+    async with httpx.AsyncClient(timeout=5) as client:
+        resp = await client.get(
+            "https://apis.map.qq.com/ws/geocoder/v1/",
+            params={
+                "location": location,
+                "key": settings.TENCENT_MAP_KEY,
+                "get_poi": 1,
+            },
+        )
+        data = resp.json()
+
+    if redis and data.get("status") == 0:
+        import json
+        await redis.set(ck, json.dumps(data), ex=CACHE_TTL)
+
+    return data
+
+
+@router.get("/place/search")
+async def place_search(
+    request: Request,
+    keyword: str = Query(...),
+    boundary: str = Query(...),
+):
+    redis = request.app.state.redis
+    ck = _cache_key("place", keyword=keyword, boundary=boundary)
+    if redis:
+        cached = await redis.get(ck)
+        if cached:
+            import json
+            return json.loads(cached)
+
+    async with httpx.AsyncClient(timeout=5) as client:
+        resp = await client.get(
+            "https://apis.map.qq.com/ws/place/v1/search",
+            params={
+                "keyword": keyword,
+                "boundary": boundary,
+                "page_size": 10,
+                "page_index": 1,
+                "key": settings.TENCENT_MAP_KEY,
+            },
+        )
+        data = resp.json()
+
+    if redis and data.get("status") == 0:
+        import json
+        await redis.set(ck, json.dumps(data), ex=CACHE_TTL)
+
+    return data