1 files changed, 13 insertions, 0 deletions
diff --git a/src/client/Network.ts b/src/client/Network.ts
index 6982ecf19..bd0e6e61a 100644
--- a/src/client/Network.ts
+++ b/src/client/Network.ts
@@ -4,10 +4,23 @@ import { Upload } from "../server/SharedMediaTypes";
 
 export namespace Networking {
 
+    const EnvVarCache = new Map<string, string>();
+
     export async function FetchFromServer(relativeRoute: string) {
         return (await fetch(relativeRoute)).text();
     }
 
+    export async function FetchEnvironmentVariable(varNameLiteral: string) {
+        let resolved = EnvVarCache.get(varNameLiteral);
+        if (!resolved) {
+            resolved = await FetchFromServer(`/environment/${varNameLiteral}`);
+            if (resolved !== undefined) {
+                EnvVarCache.set(varNameLiteral, resolved);
+            }
+        }
+        return resolved;
+    }
+
     export async function PostToServer(relativeRoute: string, body?: any) {
         const options = {
             uri: Utils.prepend(relativeRoute),