feat: Add PREFIX_PATH config

docs/settings.md

@@ -62,3 +62,4 @@ In version `6.0.0` we've renamed the PG configuration variable to match the offi
 - `CORS_METHODS`: A list of HTTP methods that should be allowed for cross-origin requests. Defaults to `"GET,POST,OPTIONS"`
 - `USE_API_HYDRATE`: perform hydration of stac items within stac-fastapi
 - `INVALID_ID_CHARS`: list of characters that are not allowed in item or collection ids (used in Transaction endpoints)
+- `PREFIX_PATH`: An optional path prefix for the underlying FastAPI router.

stac_fastapi/pgstac/app.py

@@ -9,7 +9,7 @@
 from contextlib import asynccontextmanager
 
 from brotli_asgi import BrotliMiddleware
-from fastapi import FastAPI
+from fastapi import APIRouter, FastAPI
 from stac_fastapi.api.app import StacApi
 from stac_fastapi.api.middleware import CORSMiddleware, ProxyHeaderMiddleware
 from stac_fastapi.api.models import (
@@ -171,6 +171,7 @@ async def lifespan(app: FastAPI):
         description=settings.stac_fastapi_description,
         lifespan=lifespan,
     ),
+    router=APIRouter(prefix=settings.prefix_path),
     settings=settings,
     extensions=application_extensions,
     client=CoreCrudClient(pgstac_search_model=post_request_model),

stac_fastapi/pgstac/config.py

@@ -159,11 +159,13 @@ class Settings(ApiSettings):
     """API settings.
 
     Attributes:
+        prefix_path: An optional path prefix for the underyling FastAPI router.
         use_api_hydrate: perform hydration of stac items within stac-fastapi.
         invalid_id_chars: list of characters that are not allowed in item or collection ids.
 
     """
 
+    prefix_path: str = ""
     use_api_hydrate: bool = False
     invalid_id_chars: List[str] = DEFAULT_INVALID_ID_CHARS
     base_item_cache: Type[BaseItemCache] = DefaultBaseItemCache