Merge pull request #372 from zitadel/custom-request-headers

feat: allow configuring custom request headers

apps/login/next-env-vars.d.ts

@@ -27,5 +27,11 @@ declare namespace NodeJS {
      * Optional: wheter a user must have verified email
      */
     EMAIL_VERIFICATION: string;
+
+    /**
+     * Optional: custom request headers to be added to every request
+     * Split by comma, key value pairs separated by colon
+     */
+    CUSTOM_REQUEST_HEADERS: string;
   }
 }

apps/login/src/lib/service.ts

@@ -44,6 +44,21 @@ export async function createServiceForHost<T extends ServiceClass>(
 
   const transport = createServerTransport(token, {
     baseUrl: serviceUrl,
+    interceptors: !process.env.CUSTOM_REQUEST_HEADERS
+      ? undefined
+      : [
+          (next) => {
+            return (req) => {
+              process.env.CUSTOM_REQUEST_HEADERS.split(",").forEach(
+                (header) => {
+                  const kv = header.split(":");
+                  req.header.set(kv[0], kv[1]);
+                },
+              );
+              return next(req);
+            };
+          },
+        ],
   });
 
   return createClientFor<T>(service)(transport);

turbo.json

@@ -12,7 +12,8 @@
     "ZITADEL_API_URL",
     "ZITADEL_SERVICE_USER_ID",
     "ZITADEL_SERVICE_USER_TOKEN",
-    "NEXT_PUBLIC_BASE_PATH"
+    "NEXT_PUBLIC_BASE_PATH",
+    "CUSTOM_REQUEST_HEADERS"
   ],
   "tasks": {
     "generate": {