Commits on Apr 22, 2025

1. Enable direct response, stac-fastapi 5.2.0, deprecation warnings (#359) …

   **Related Issue(s):**-#347 **Description:**#### v4.0.0a2 release #### Added- Added support for high-performance direct response mode for bothElasticsearch and Opensearch backends, controlled by the`ENABLE_DIRECT_RESPONSE` environment variable. When enabled(`ENABLE_DIRECT_RESPONSE=true`), endpoints return Starlette Responseobjects directly, bypassing FastAPI's jsonable_encoder and Pydanticserialization for significantly improved performance on large searchresponses. **Note:** In this mode, all FastAPI dependencies (includingauthentication, custom status codes, and validation) are disabled forall routes. Default is `false` for safety. A warning is logged atstartup if enabled. See [issue#347](#347)#### Changed- Updated test suite to use `httpx.ASGITransport(app=...)` for FastAPIapp testing (removes deprecation warning).- Updated stac-fastapi parent libraries to 5.2.0. - Migrated Elasticsearch index template creation from legacy`put_template` to composable `put_index_template` API in`database_logic.py`. This resolves deprecation warnings and ensurescompatibility with Elasticsearch 7.x and 8.x.- Updated all Pydantic models to use `ConfigDict` instead of class-based`Config` for Pydantic v2 compatibility. This resolves deprecationwarnings and prepares for Pydantic v3.- Migrated all Pydantic `@root_validator` validators to`@model_validator` for Pydantic v2 compatibility.- Migrated startup event handling from deprecated`@app.on_event("startup")` to FastAPI's recommended lifespan contextmanager. This removes deprecation warnings and ensures compatibilitywith future FastAPI versions.**PR Checklist:**- [x] Code is formatted and linted (run `pre-commit run --all-files`)- [x] Tests pass (run `make test`)- [x] Documentation has been updated to reflect changes, if applicable- [x] Changes are added to the changelog

   

   jonhealy1 authoredApr 22, 2025
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