From 5fcdfe0ec2051b3ef2caefd79aca04fed55f9967 Mon Sep 17 00:00:00 2001
From: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Date: Mon, 8 Jul 2024 14:39:18 +0200
Subject: [PATCH] fix(api): control host with env var (#55439)

---
 api/src/server.ts    | 4 ++--
 api/src/utils/env.ts | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/api/src/server.ts b/api/src/server.ts
index 1383cebea98..a999115bd53 100644
--- a/api/src/server.ts
+++ b/api/src/server.ts
@@ -4,7 +4,7 @@
 // eslint-disable-next-line @typescript-eslint/triple-slash-reference
 /// <reference path="./reset.d.ts" />
 import { build } from './app';
-import { FREECODECAMP_NODE_ENV, PORT } from './utils/env';
+import { FREECODECAMP_NODE_ENV, HOST, PORT } from './utils/env';
 
 const envToLogger = {
   development: {
@@ -27,7 +27,7 @@ const start = async () => {
   try {
     const port = Number(PORT);
     fastify.log.info(`Starting server on port ${port}`);
-    await fastify.listen({ port });
+    await fastify.listen({ port, host: HOST });
   } catch (err) {
     fastify.log.error(err);
     process.exit(1);
diff --git a/api/src/utils/env.ts b/api/src/utils/env.ts
index b8da7abde13..7b218193c37 100644
--- a/api/src/utils/env.ts
+++ b/api/src/utils/env.ts
@@ -68,6 +68,7 @@ if (process.env.FREECODECAMP_NODE_ENV !== 'development') {
   assert.ok(process.env.COOKIE_DOMAIN);
   assert.notEqual(process.env.COOKIE_SECRET, 'a_cookie_secret');
   assert.ok(process.env.PORT);
+  assert.ok(process.env.HOST);
   assert.ok(process.env.SENTRY_DSN);
   // The following values can exist in development, but production-like
   // environments need to override the defaults.
@@ -111,6 +112,7 @@ export const FREECODECAMP_NODE_ENV = process.env.FREECODECAMP_NODE_ENV;
 export const AUTH0_DOMAIN = process.env.AUTH0_DOMAIN;
 export const AUTH0_AUDIENCE = process.env.AUTH0_AUDIENCE;
 export const PORT = process.env.PORT || '3000';
+export const HOST = process.env.HOST || 'localhost';
 export const API_LOCATION = process.env.API_LOCATION;
 export const FCC_ENABLE_SWAGGER_UI =
   process.env.FCC_ENABLE_SWAGGER_UI === 'true';