Method setErrorHandler

types/instance.d.ts:472–472

* Set a function that will be invoked whenever an exception is thrown during the request lifecycle.

(
    handler: (this: FastifyInstance<RawServer, RawRequest, RawReply, Logger, TypeProvider>, error: TError, request: FastifyRequest<RouteGeneric, RawServer, RawRequest, SchemaCompiler, TypeProvider>, reply: FastifyReply<RouteGeneric, RawServer, RawRequest, RawReply, ContextConfigDefault, SchemaCompiler, TypeProvider>) => any | Promise<any>
  )

   * Set a function that will be invoked whenever an exception is thrown during the request lifecycle.
   */
  setErrorHandler<TError = unknown, RouteGeneric extends RouteGenericInterface = RouteGenericInterface, SchemaCompiler extends FastifySchema = FastifySchema, TypeProvider extends FastifyTypeProvider = FastifyTypeProviderDefault>(
    handler: (this: FastifyInstance<RawServer, RawRequest, RawReply, Logger, TypeProvider>, error: TError, request: FastifyRequest<RouteGeneric, RawServer, RawRequest, SchemaCompiler, TypeProvider>, reply: FastifyReply<RouteGeneric, RawServer, RawRequest, RawReply, ContextConfigDefault, SchemaCompiler, TypeProvider>) => any | Promise<any>
  ): FastifyInstance<RawServer, RawRequest, RawReply, Logger, TypeProvider>;