Merge branch 'main' into CAT-1522

Author: YuriZmytrakov

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 
 - Added environment variables `HIDE_PRIVATE_DATA` and `PRIVATE_DATA_FIELD` to control visibility of private technical data fields in SFEOS responses. [#518](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/518)
+- Added validator for `REDIS_MAX_CONNECTIONS` to handle empty or null-like values ("", "null", None) and return None instead. [#519](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/519)
 
 ### Changed
 

stac_fastapi/core/stac_fastapi/core/redis_utils.py

@@ -36,6 +36,14 @@ def validate_db_sentinel(cls, v: int) -> int:
             raise ValueError("REDIS_DB must be a positive integer")
         return v
 
+    @field_validator("REDIS_MAX_CONNECTIONS", mode="before")
+    @classmethod
+    def validate_max_connections(cls, v):
+        """Handle empty/None values for REDIS_MAX_CONNECTIONS."""
+        if v in ["", "null", "Null", "NULL", "none", "None", "NONE", None]:
+            return None
+        return v
+
     @field_validator("REDIS_SELF_LINK_TTL")
     @classmethod
     def validate_self_link_ttl_sentinel(cls, v: int) -> int:
@@ -118,6 +126,15 @@ def validate_db_standalone(cls, v: int) -> int:
             raise ValueError("REDIS_DB must be a positive integer")
         return v
 
+
+    @field_validator("REDIS_MAX_CONNECTIONS", mode="before")
+    @classmethod
+    def validate_max_connections(cls, v):
+        """Handle empty/None values for REDIS_MAX_CONNECTIONS."""
+        if v in ["", "null", "Null", "NULL", "none", "None", "NONE", None]:
+            return None
+        return v
+
     @field_validator("REDIS_SELF_LINK_TTL")
     @classmethod
     def validate_self_link_ttl_standalone(cls, v: int) -> int: