auth = NoAuthMiddleware
	}

	metricsRouter.Handle(prometheusMetricsPathLegacy, auth(metricsHandler()))
	metricsRouter.Handle(prometheusMetricsV2ClusterPath, auth(metricsServerHandler()))
	metricsRouter.Handle(prometheusMetricsV2BucketPath, auth(metricsBucketHandler()))
	metricsRouter.Handle(prometheusMetricsV2NodePath, auth(metricsNodeHandler()))
	metricsRouter.Handle(prometheusMetricsV2ResourcePath, auth(metricsResourceHandler()))

If an incoming request does not validate correctly then a `400` response will be sent.

## `GZipMiddleware` { #gzipmiddleware }

Handles GZip responses for any request that includes `"gzip"` in the `Accept-Encoding` header.

The middleware will handle both standard and streaming responses.

{* ../../docs_src/advanced_middleware/tutorial003_py39.py hl[2,6] *}

The following arguments are supported:

                        "404": {
                            "description": "Not found if GraphiQL or query via GET are not enabled.",
                        },
                    },
                    "summary": "Handle Http Get",
                },
                "post": {
                    "operationId": "handle_http_post_graphql_post",
                    "responses": {
                        "200": {

        @Test
        @DisplayName("should handle missing POM gracefully")
        void shouldHandleMissingPomGracefully() throws Exception {
            // No POM file in the directory
            UpgradeContext context = TestUtils.createMockContext(tempDir);

            // Execute apply goal
            applyGoal.execute(context);

            // Should handle gracefully (exact behavior depends on implementation)

// When clients request content hosted on a particular source domain and that content make requests
// directed towards a domain other than its own, the remote domain needs to host a cross-domain
// policy file that grants access to the source domain, allowing the client to continue the transaction.
func setCrossDomainPolicyMiddleware(h http.Handler) http.Handler {

		for _, metric := range metrics {
			b.WriteString(metric.TableRow())
		}
		w.Write([]byte(b.String()))
	})
}

func (h *metricsV3Server) handle(path string, isListingRequest bool, buckets []string) http.Handler {
	var notFoundHandler http.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		http.Error(w, "Metrics Resource Not found", http.StatusNotFound)
	})

            assertEquals(0, merged.errorCount(), "Merged empty results should have no errors");
        }

        @Test
        @DisplayName("should handle merging results with overlapping POMs")
        void shouldHandleMergingResultsWithOverlappingPOMs() {
            Path pom1 = Paths.get("pom.xml");
            Path pom2 = Paths.get("module/pom.xml");

# Security { #security }

There are many ways to handle security, authentication and authorization.

And it normally is a complex and "difficult" topic.

In many frameworks and systems just handling security and authentication takes a big amount of effort and code (in many cases it can be 50% or more of all the code written).

## `Depends()`

Dependencies are handled mainly with the special function `Depends()` that takes a callable.

Here is the reference for it and its parameters.

You can import it directly from `fastapi`:

```python
from fastapi import Depends
```

::: fastapi.Depends

## `Security()`

        assertEquals("-", ConsoleIcon.DETAIL.getIcon(mockTerminal));
        assertEquals(">", ConsoleIcon.ACTION.getIcon(mockTerminal));
    }

    @Test
    @DisplayName("should handle null terminal gracefully")
    void shouldHandleNullTerminal() {
        // Should fall back to system default charset
        for (ConsoleIcon icon : ConsoleIcon.values()) {
            String result = icon.getIcon(null);