import org.opensearch.core.common.text.Text;
import org.opensearch.search.fetch.subphase.highlight.HighlightField;

import com.github.jknack.handlebars.Context;
import com.github.jknack.handlebars.Handlebars;
import com.github.jknack.handlebars.Template;
import com.github.jknack.handlebars.io.FileTemplateLoader;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.ibm.icu.text.SimpleDateFormat;

///

## Override the default exception handlers { #override-the-default-exception-handlers }

**FastAPI** has some default exception handlers.

These handlers are in charge of returning the default JSON responses when you `raise` an `HTTPException` and when the request has invalid data.

You can override these exception handlers with your own.

You can probably skip this part.

///

There's an alternative way to define this logic to be executed during *startup* and during *shutdown*.

        assert client.app_state == {"router": True}


@pytest.mark.filterwarnings(
    r"ignore:\s*on_event is deprecated, use lifespan event handlers instead.*:DeprecationWarning"
)
def test_router_async_shutdown_handler(state: State) -> None:
    """Test that async on_shutdown event handlers are called correctly, for coverage."""
    app = FastAPI()

    @app.get("/")
    def main() -> dict[str, str]:

Але якщо вам знадобиться це для складного сценарію, ви можете додати власні заголовки:

{* ../../docs_src/handling_errors/tutorial002_py310.py hl[14] *}

## Встановлення власних обробників виключень { #install-custom-exception-handlers }

Ви можете додати власні обробники виключень за допомогою [тих самих утиліт для виключень зі Starlette](https://www.starlette.dev/exceptions/).

Ama ileri seviye bir senaryo için ihtiyaç duyarsanız, özel header’lar ekleyebilirsiniz:

{* ../../docs_src/handling_errors/tutorial002_py310.py hl[14] *}

## Özel Exception Handler’ları Kurmak { #install-custom-exception-handlers }

[Starlette’in aynı exception yardımcı araçlarıyla](https://www.starlette.dev/exceptions/) özel exception handler’lar ekleyebilirsiniz.

        }
    }

    /**
     * Loads protocol handlers from the specified base package by scanning for
     * Handler classes in subpackages and registering them as web or file protocols
     * based on their PROTOCOL_TYPE field.
     *
     * @param basePackage the base package to scan for protocol handlers
     */
    protected void loadProtocols(final String basePackage) {

Before FastAPI 0.106.0, raising exceptions after `yield` was not possible, the exit code in dependencies with `yield` was executed *after* the response was sent, so [Exception Handlers](../tutorial/handling-errors.md#install-custom-exception-handlers) would have already run.

{* ../../docs_src/handling_errors/tutorial002_py310.py hl[14] *}

## Instalar manejadores de excepciones personalizados { #install-custom-exception-handlers }

Puedes agregar manejadores de excepciones personalizados con [las mismas utilidades de excepciones de Starlette](https://www.starlette.dev/exceptions/).

{* ../../docs_src/handling_errors/tutorial002_py310.py hl[14] *}

## Instale manipuladores de exceções customizados { #install-custom-exception-handlers }

Você pode adicionar manipuladores de exceção customizados com [a mesma seção de utilidade de exceções presentes no Starlette](https://www.starlette.dev/exceptions/).