use titiler custom JSONResponse to handle NaN values (#659)

Author: vincentsarago

CHANGES.md

@@ -1,5 +1,11 @@
 # Release Notes
 
+## Next (TDB)
+
+### titiler.extensions
+
+* use TiTiler's custom JSONResponse for the `/validate` endpoint to avoid issue when COG has `NaN` nodata value
+
 ## 0.11.7 (2023-05-18)
 
 ### titiler.core

src/titiler/extensions/titiler/extensions/cogeo.py

@@ -5,6 +5,7 @@
 from fastapi import Depends, Query
 
 from titiler.core.factory import BaseTilerFactory, FactoryExtension
+from titiler.core.resources.responses import JSONResponse
 
 try:
     from rio_cogeo.cogeo import cog_info
@@ -25,7 +26,11 @@ def register(self, factory: BaseTilerFactory):
             cog_info is not None
         ), "'rio_cogeo' must be installed to use CogValidateExtension"
 
-        @factory.router.get("/validate", response_model=Info)
+        @factory.router.get(
+            "/validate",
+            response_model=Info,
+            response_class=JSONResponse,
+        )
         def validate(
             src_path: str = Depends(factory.path_dependency),
             strict: bool = Query(False, description="Treat warnings as errors"),