feat: Semaine 8

2026-05-11 09:25:19 +02:00
parent 606e43e53f
commit 3315cb2336
123 changed files with 5748 additions and 0 deletions
@@ -0,0 +1,66 @@
+import httpx
+from fastapi import FastAPI, Request, Response
+
+app = FastAPI()
+
+SERVICES = {
+    "users":         "http://user-service:8000",
+    "products":      "http://catalog-service:8000",
+    "orders":        "http://order-service:8000",
+    "notifications": "http://notif-service:8000",
+}
+
+TIMEOUT = 5.0
+
+@app.get("/health")
+def health():
+    return {"status": "ok", "service": "api-gateway"}
+
+@app.api_route("/{full_path:path}", methods=["GET", "POST", "PUT", "DELETE", "PATCH"])
+async def gateway(full_path: str, request: Request):
+    # Extraire le nom du service depuis le début du chemin
+    # ex: "users/1" → service="users", "orders" → service="orders"
+    parts = full_path.split("/", 1)
+    service_key = parts[0]
+
+    base_url = SERVICES.get(service_key)
+    if not base_url:
+        return Response(
+            content=f'{{"detail": "Service \'{service_key}\' inconnu"}}',
+            status_code=404,
+            media_type="application/json",
+        )
+
+    target_url = f"{base_url}/{full_path}"
+    if request.url.query:
+        target_url += f"?{request.url.query}"
+
+    body = await request.body()
+
+    async with httpx.AsyncClient() as client:
+        try:
+            response = await client.request(
+                method=request.method,
+                url=target_url,
+                content=body,
+                headers={"Content-Type": request.headers.get("Content-Type", "application/json")},
+                timeout=TIMEOUT,
+            )
+        except httpx.TimeoutException:
+            return Response(
+                content='{"detail": "Service timeout"}',
+                status_code=504,
+                media_type="application/json",
+            )
+        except Exception as e:
+            return Response(
+                content=f'{{"detail": "Gateway error: {str(e)}"}}',
+                status_code=502,
+                media_type="application/json",
+            )
+
+    return Response(
+        content=response.content,
+        status_code=response.status_code,
+        media_type=response.headers.get("content-type"),
+    )