From fec6e82d52e43bce554aea12cf52f30d3ae8504e Mon Sep 17 00:00:00 2001
From: Fernando Vargas <usuario.frndvrgs@gmail.com>
Date: Mon, 12 Aug 2024 08:12:24 -0300
Subject: [PATCH 1/2] feat(fastify): updates interface adding opts to the
 listen method

---
 .../nest-fastify-application.interface.ts     | 29 +++++++++++++++++--
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts b/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts
index c52d804a640..2d6baca5661 100644
--- a/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts
+++ b/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts
@@ -2,6 +2,7 @@ import { INestApplication, HttpServer } from '@nestjs/common';
 import {
   FastifyBodyParser,
   FastifyInstance,
+  FastifyListenOptions,
   FastifyPluginAsync,
   FastifyPluginCallback,
   FastifyPluginOptions,
@@ -93,19 +94,41 @@ export interface NestFastifyApplication<
    * Starts the application.
    * @returns A Promise that, when resolved, is a reference to the underlying HttpServer.
    */
+  listen(
+    opts: FastifyListenOptions,
+    callback?: (err: Error | null, address: string) => void,
+  ): Promise<TServer>;
+  listen(
+    opts: FastifyListenOptions,
+  ): Promise<TServer>;
+  listen(
+    callback?: (err: Error | null, address: string) => void,
+  ): Promise<TServer>;
+  /**
+   * @deprecated Variadic listen method is deprecated. Please use `.listen(optionsObject, callback)` instead. The variadic signature will be removed in `fastify@5`
+   * @see https://github.com/fastify/fastify/pull/3712
+   */
   listen(
     port: number | string,
-    callback?: (err: Error, address: string) => void,
+    callback?: (err: Error | null, address: string) => void,
   ): Promise<TServer>;
+  /**
+   * @deprecated Variadic listen method is deprecated. Please use `.listen(optionsObject, callback)` instead. The variadic signature will be removed in `fastify@5`
+   * @see https://github.com/fastify/fastify/pull/3712
+   */
   listen(
     port: number | string,
     address: string,
-    callback?: (err: Error, address: string) => void,
+    callback?: (err: Error | null, address: string) => void,
   ): Promise<TServer>;
+  /**
+   * @deprecated Variadic listen method is deprecated. Please use `.listen(optionsObject, callback)` instead. The variadic signature will be removed in `fastify@5`
+   * @see https://github.com/fastify/fastify/pull/3712
+   */
   listen(
     port: number | string,
     address: string,
     backlog: number,
-    callback?: (err: Error, address: string) => void,
+    callback?: (err: Error | null, address: string) => void,
   ): Promise<TServer>;
 }

From aaebb6f278efcbee22fa1f6c074f84ae5c2c43b8 Mon Sep 17 00:00:00 2001
From: Fernando Vargas <usuario.frndvrgs@gmail.com>
Date: Mon, 12 Aug 2024 08:43:07 -0300
Subject: [PATCH 2/2] feat(fastify): setting opts object optional variation

---
 .../interfaces/nest-fastify-application.interface.ts            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts b/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts
index 2d6baca5661..4ce780d0a28 100644
--- a/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts
+++ b/packages/platform-fastify/interfaces/nest-fastify-application.interface.ts
@@ -99,7 +99,7 @@ export interface NestFastifyApplication<
     callback?: (err: Error | null, address: string) => void,
   ): Promise<TServer>;
   listen(
-    opts: FastifyListenOptions,
+    opts?: FastifyListenOptions,
   ): Promise<TServer>;
   listen(
     callback?: (err: Error | null, address: string) => void,