From f4a3240cc88ede6beb4565c00433aff656ff1ab9 Mon Sep 17 00:00:00 2001
From: Magnus Hallin <mhallin@fastmail.com>
Date: Sun, 18 Sep 2016 15:40:38 +0200
Subject: [PATCH] Read environment variable in example server

---
 examples/server.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/examples/server.rs b/examples/server.rs
index 53f1bc5c..43053c0b 100644
--- a/examples/server.rs
+++ b/examples/server.rs
@@ -4,6 +4,8 @@ extern crate logger;
 extern crate rustc_serialize;
 #[macro_use] extern crate juniper;
 
+use std::env;
+
 use mount::Mount;
 use logger::Logger;
 use iron::prelude::*;
@@ -29,9 +31,9 @@ fn main() {
     chain.link_before(logger_before);
     chain.link_after(logger_after);
 
-    let host = "localhost:8080";
+    let host = env::var("LISTEN").unwrap_or("0.0.0.0:8080".to_owned());
     println!("GraphQL server started on {}", host);
-    Iron::new(chain).http(host).unwrap();
+    Iron::new(chain).http(host.as_str()).unwrap();
 }
 
 struct Query {}