documentation

README.md

@@ -31,6 +31,16 @@ node run server
 
 By default, server launches on port **8090**.
 
+Server accepts these environamental variables:
+
+- ADDRESS ... TCP/IP address to listen on (default: localhost)
+- PORT: ... TCP/IP port number to bind to (default: 8090)
+- KEY_SERVER_URL ... URL to a key server. When set, WS Server will call GET
+  request on ``<KEY_SERVER_URL>/key/<client-key>"```. If the othe party
+  responds with other status code than 200, the connecting client is
+  immediatelly disconnected.
+  If KEY_SERVER_URL is undefined, client with any key can connect (default: undefined).
+
 ## Connecting a client to the server
 
 Using websocket-proxy client, you can connect your service in your isolated

config.js

@@ -10,10 +10,10 @@ let CONFIG = {
   server: {
     host: val('ADDRESS', 'localhost'),
     port: val('PORT', '8090'),
-    // authenticator config
-    // null - no authenticator (allow any key to pass)
+    // key server url
+    // empty value means no authenticator (allow any key to connect)
     // http(s)://... - a url for key-master APIs
-    keyServerUrl: val('AUTHENTICATOR', undefined),
+    keyServerUrl: val('KEY_SERVER_URL', undefined),
   },
   client: {
     key: val('KEY', 'client-1'),