# Custom Request and APIRoute class { #custom-request-and-apiroute-class }

In some cases, you may want to override the logic used by the `Request` and `APIRoute` classes.

In particular, this may be a good alternative to logic in a middleware.

For example, if you want to read or manipulate the request body before it is processed by your application.

/// danger

This is an "advanced" feature.

    @Test
    public void test_dataPersistedAfterCreateIndex() throws Exception {
        Suggester suggester = createSuggester();
        suggester.createIndexIfNothing();

        // Index some data
        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };

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			// Fresh setup, wait for other servers to come up.
			logger.Info("Waiting for all other servers to be online to format the drives (elapses %s)\n", getElapsedTime())
		case errors.Is(err, errErasureReadQuorum):
			// no quorum available continue to wait for minimum number of servers.
			logger.Info("Waiting for a minimum of %d drives to come online (elapsed %s)\n",
				len(endpoints)/2, getElapsedTime())

# Global Dependencies { #global-dependencies }

For some types of applications you might want to add dependencies to the whole application.

Similar to the way you can [add `dependencies` to the *path operation decorators*](dependencies-in-path-operation-decorators.md), you can add them to the `FastAPI` application.

In that case, they will be applied to all the *path operations* in the application:

{* ../../docs_src/dependencies/tutorial012_an_py310.py hl[17] *}

# This file specifies the Linux OS versions on which we can't build and
# test Docker images for some reason. These values correspond to ID and
# VERSION_ID from /etc/os-release, and a matching value will cause the
# Docker tests to be skipped on that OS. If /etc/os-release doesn't exist
# (as is the case on centos-6, for example) then that OS will again be
# excluded.
debian-8
opensuse-leap-15.1
ol-7.7
sles-12.3 # older version used in Vagrant image
sles-12.5

Foundation (http://www.apache.org/). This product includes software developed by ThoughtWorks (http://www.thoughtworks.com). This product includes software developed by javolution (http://javolution.org/). This product includes software developed by Rome (https://rome.dev.java.net/). about.html in archive lib/org.eclipse.sisu.inject-0.3.5.jar http://www.w3.org/1999/xhtml Content-Type text/html; charset=ISO-8859-1 About org.eclipse.sisu.inject EN-US About org.eclipse.sisu.inject November 5, 2013 License The...

	// ARNPrefix prefix for "arn:aws:kms"
	ARNPrefix = "arn:aws:kms:"
)

// IsMultiPart returns true if the object metadata indicates
// that it was uploaded using some form of server-side-encryption
// and the S3 multipart API.
func IsMultiPart(metadata map[string]string) bool {
	if _, ok := metadata[MetaMultipart]; ok {
		return true
	}
	return false
}

                pw.println("---------- Validation Report -----------");
                pw.println("Some API names were found that, when client code is generated for these APIS,");
                pw.println("could conflict with the reserved words in some programming languages. It may");
                pw.println("still be possible to use these API names, but you will need to verify whether");

    assertThat(cache.asMap().computeIfPresent(key, (k, v) -> "2")).isEqualTo("2");
  }

  public void testUpdates() {
    cache.put(key, "1");
    // simultaneous update for same key, some null, some non-null
    doParallelCacheOp(
        count, n -> cache.asMap().compute(key, (k, v) -> n % 2 == 0 ? v + delimiter + n : null));
    assertThat(cache.size()).isAtMost(1);
  }

  public void testCompute() {