*    thread's [uncaught exception handler][Thread.UncaughtExceptionHandler]. By default this
 *    crashes the application on Android and prints a stacktrace on the JVM. (Crash reporting
 *    libraries may customize this behavior.)
 *
 * A good way to signal a failure is with a synthetic HTTP response:
 *
 * ```kotlin
 *   @Throws(IOException::class)
 *   override fun intercept(chain: Interceptor.Chain): Response {

        viewHelper.getActionHook().godHandEpilogue(runtime, super::godHandEpilogue);
    }

    // #app_customize you can customize the action hook
    /**
     * Hook method called before action processing.
     * This method can be overridden by subclasses to customize behavior.
     *
     * @param runtime the action runtime context
     * @return the action response, or null to continue with normal processing

## OpenAPI Custom URL { #openapi-custom-url }

To customize the OpenAPI URL (or remove it), read the docs for [Tutorial - Metadata and Docs URLs](../tutorial/metadata.md#openapi-url){.internal-link target=_blank}.

## OpenAPI Docs URLs { #openapi-docs-urls }

    t: Throwable?,
  ) {
    if (level == WARN) {
      Log.w(Tag, message, t)
    } else {
      Log.i(Tag, message, t)
    }
  }

  /**
   * A trust manager for Android applications that customize the trust manager.
   *
   * This class exploits knowledge of Android implementation details. This class is potentially
   * much faster to initialize than [BasicTrustRootIndex] because it doesn't need to load and

# Metadata and Docs URLs { #metadata-and-docs-urls }

You can customize several metadata configurations in your **FastAPI** application.

## Metadata for API { #metadata-for-api }

You can set the following fields that are used in the OpenAPI specification and the automatic API docs UIs:

| Parameter | Type | Description |
|------------|------|-------------|
| `title` | `str` | The title of the API. |

         * or environment variables. They are evaluated during the build process and represent the primary
         * way for users to customize Maven's behavior at runtime.
         */
        USER_PROPERTIES,
        /**
         * Project model properties. These properties are defined in the project's POM file (pom.xml) and

```java
okHttpClient.setSslSocketFactory(HttpsURLConnection.getDefaultSSLSocketFactory());
```

A simpler solution is to avoid the shared default SSL socket factory. Instead, if you
need to customize SSL, do so for your specific OkHttpClient instance only.

##### Synthetic headers have changed

Previously OkHttp added a synthetic response header, `OkHttp-Selected-Transport`. It

      fun run() {
        val request = Request.Builder()
            .url("http://httpbin.org/delay/1") // This URL is served with a 1 second delay.
            .build()

        // Copy to customize OkHttp for this request.
        val client1 = client.newBuilder()
            .readTimeout(500, TimeUnit.MILLISECONDS)
            .build()
        try {
          client1.newCall(request).execute().use { response ->

   *
   * In order to support preemptive authentication we pass a fake "Auth Failed" response to the
   * authenticator. This gives the authenticator the option to customize the CONNECT request. It can
   * decline to do so by returning null, in which case OkHttp will use it as-is.
   */
  @Throws(IOException::class)
  private fun createTunnelRequest(route: Route): Request {

But it's possible to customize it, you can set a specific CDN, or serve the files yourself.

## Custom CDN for JavaScript and CSS { #custom-cdn-for-javascript-and-css }