fix:#25 fixed router bug

frontend/src/api/createFeed.ts

@@ -19,6 +19,23 @@ export async function createIndividualFeed(modules: Module[]): Promise<string> {
   return token;
 }
 
+interface FeedResponse {
+  modules: FeedModule[];
+  collectionId: string;
+  collectionName: string;
+  id: string;
+  retrieved: string;
+  updated: string;
+}
+
+interface FeedModule {
+  course: string;
+  name: string;
+  reminder: boolean;
+  userDefinedName: string;
+  uuid: string;
+}
+
 export async function saveIndividualFeed(
   token: string,
   modules: Module[],
@@ -30,11 +47,14 @@ export async function saveIndividualFeed(
     },
     body: '{"modules":' + JSON.stringify(modules) + "}",
   })
-    .then((response) => {
-      return response.json();
+    .then(async (response) => {
+      // parse response.json to FeedResponse
+      const feedResponse: FeedResponse = await response.json();
+      return feedResponse;
     })
-    .then((response) => {
-      token = response;
+    .then((response: FeedResponse) => {
+      console.debug("response", response);
+      token = response.id;
     });
   return token;
 }