Use $PORT inside example server

demo/src/config.js

@@ -2,11 +2,11 @@
  * Load and validate configuration
  * @todo Use Joi or some better configuration checker
  * @param env an object that contains the configuration, like process.env
- * @return {{API_KEY: *, API_SECRET: *, BASE_URL: *, EXAMPLE_SERVER_PORT: *}}
+ * @return {{API_KEY: *, API_SECRET: *, BASE_URL: *, EXAMPLE_SERVER_PORT: *, PORT: *}}
  */
 export function configure(env) {
   const { BASE_URL, API_KEY, API_SECRET } = env
-  let { EXAMPLE_SERVER_PORT } = env
+  let { PORT, EXAMPLE_SERVER_PORT } = env
   const errors = []
   if (!BASE_URL) {
     errors.push("BASE_URL is undefined. Example: https://eu.rp.secure.iproov.me.")
@@ -23,6 +23,10 @@ export function configure(env) {
   } else if (API_SECRET.length < 40) {
     errors.push("API_SECRET seems incorrect, it should be a 40 character alphanumeric string.")
   }
+  if (!PORT) {
+    // This is the internal container port that the EXAMPLE_SERVER_PORT should map to. Best left at 80.
+    PORT = 80
+  }
   if (!EXAMPLE_SERVER_PORT) {
     console.warn("EXAMPLE_SERVER_PORT not specified, using port 80.")
     EXAMPLE_SERVER_PORT = 80
@@ -34,11 +38,11 @@ export function configure(env) {
     process.exit(1)
     return
   }
-  const config = {
+  return {
     BASE_URL,
     API_KEY,
     API_SECRET,
+    PORT,
     EXAMPLE_SERVER_PORT,
   }
-  return config
 }

demo/src/server.js

@@ -9,11 +9,11 @@ import { configure } from "./config.js"
 const __dirname = fileURLToPath(dirname(import.meta.url))
 
 async function init() {
-  const { BASE_URL, API_KEY, API_SECRET, EXAMPLE_SERVER_PORT } = configure(process.env)
+  const { BASE_URL, API_KEY, API_SECRET, PORT, EXAMPLE_SERVER_PORT } = configure(process.env)
 
   const ALL_INTERFACES = "0.0.0.0" // listen on all interfaces so Docker can bind
   const server = Hapi.server({
-    port: 80,
+    port: PORT,
     host: ALL_INTERFACES,
   })