feat: add health check route (#1822)

letta/schemas/health.py

@@ -0,0 +1,10 @@
+from pydantic import BaseModel
+
+
+class Health(BaseModel):
+    """
+    Health check response body
+    """
+
+    version: str
+    status: str

letta/server/rest_api/routers/v1/__init__.py

@@ -1,5 +1,6 @@
 from letta.server.rest_api.routers.v1.agents import router as agents_router
 from letta.server.rest_api.routers.v1.blocks import router as blocks_router
+from letta.server.rest_api.routers.v1.health import router as health_router
 from letta.server.rest_api.routers.v1.jobs import router as jobs_router
 from letta.server.rest_api.routers.v1.llms import router as llm_router
 from letta.server.rest_api.routers.v1.sources import router as sources_router
@@ -12,4 +13,5 @@
     llm_router,
     blocks_router,
     jobs_router,
+    health_router,
 ]

letta/server/rest_api/routers/v1/health.py

@@ -0,0 +1,20 @@
+from typing import TYPE_CHECKING
+
+from fastapi import APIRouter
+
+from letta.cli.cli import version
+from letta.schemas.health import Health
+
+if TYPE_CHECKING:
+    pass
+
+router = APIRouter(prefix="/health", tags=["health"])
+
+
+# Health check
+@router.get("/", response_model=Health, operation_id="health_check")
+def health_check():
+    return Health(
+        version=version(),
+        status="ok",
+    )