From 44780ceb3bdb37342499bd2257341b8eab741e0a Mon Sep 17 00:00:00 2001
From: shaenchen <shaenchen@users.noreply.github.com>
Date: Mon, 3 Dec 2018 15:34:31 -0700
Subject: [PATCH] Add type support for error in next callback (#52)

---
 fastify-plugin.d.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fastify-plugin.d.ts b/fastify-plugin.d.ts
index 52f0b22..9a438e7 100644
--- a/fastify-plugin.d.ts
+++ b/fastify-plugin.d.ts
@@ -18,7 +18,7 @@ declare function fastifyPlugin<HttpServer, HttpRequest, HttpResponse, T>(
 ): fastify.Plugin<HttpServer, HttpRequest, HttpResponse, T>;
 
 declare namespace fastifyPlugin {
-  type nextCallback = () => void;
+  type nextCallback = (err?: Error) => void;
   interface PluginOptions {
     /** Bare-minimum version of Fastify for your plugin, just add the semver range that you need. */
     fastify?: string,
@@ -34,4 +34,4 @@ declare namespace fastifyPlugin {
   }
 }
 
-export = fastifyPlugin;
\ No newline at end of file
+export = fastifyPlugin;