The REST API key was improperly inferred from environment (#4292)

src/Options/Definitions.js

@@ -120,7 +120,7 @@ module.exports.ParseServerOptions = {
     "help": "Key for Unity and .Net SDK"
   },
   "restAPIKey": {
-    "env": "PARSE_SERVER_REST_APIKEY",
+    "env": "PARSE_SERVER_REST_API_KEY",
     "help": "Key for REST calls"
   },
   "webhookKey": {

src/Options/index.js

@@ -55,7 +55,8 @@ export interface ParseServerOptions {
   javascriptKey: ?string;
   /* Key for Unity and .Net SDK */
   dotNetKey: ?string;
-  /* Key for REST calls */
+  /* Key for REST calls
+  :ENV: PARSE_SERVER_REST_API_KEY */
   restAPIKey: ?string;
   /* Key sent with outgoing webhook calls */
   webhookKey: ?string;