angular
diff --git a/‎src/app/hero-in-mem-data-override.service.ts
Lines changed: 10 additions & 5 deletions b/‎src/app/hero-in-mem-data-override.service.ts
Lines changed: 10 additions & 5 deletions
diff --git a/‎src/in-mem/http-backend.service.spec.ts
Lines changed: 12 additions & 0 deletions b/‎src/in-mem/http-backend.service.spec.ts
Lines changed: 12 additions & 0 deletions
diff --git a/‎src/in-mem/http-client-backend.service.spec.ts
Lines changed: 12 additions & 0 deletions b/‎src/in-mem/http-client-backend.service.spec.ts
Lines changed: 12 additions & 0 deletions
@@ -79,12 +79,17 @@ export class HeroInMemDataOverrideService extends HeroInMemDataService {
     });
   }
 
-  // parseRequestUrl override that logs the result
-  // a more interesting example would give special treatment to some URLs
-  // while leaving the others for the default parser.
+  // parseRequestUrl override
+  // Do this to manipulate the request URL or the parsed result
+  // into something your data store can handle.
+  // This example turns a request for `/foo/heroes` into just `/heroes`.
+  // It leaves other URLs untouched and forwards to the default parser.
+  // It also logs the result of the default parser.
   parseRequestUrl(url: string, utils: RequestInfoUtilities): ParsedRequestUrl {
-    const parsed = utils.parseRequestUrl(url);
-    console.log('parseRequestUrl override:', parsed);
+    const newUrl = url.replace(/\/foo\/heroes/, '/heroes');
+    // console.log('newUrl', newUrl);
+    const parsed = utils.parseRequestUrl(newUrl);
+    console.log(`parseRequestUrl override of '${url}':`, parsed);
     return parsed;
   }
 
 
@@ -272,6 +272,18 @@ describe('Http Backend Service', () => {
       );
     }));
 
+    it('can translate `foo/heroes` to `heroes` via `parsedRequestUrl` override', async(() => {
+      http.get('api/foo/heroes')
+      .map(res => res.json().data as Hero[])
+      .subscribe(
+        heroes => {
+          // console.log(heroes);
+          expect(heroes.length).toBeGreaterThan(0, 'should have heroes');
+        },
+        failure
+      );
+    }));
+
     it('can get villains', async(() => {
       http.get('api/villains')
       .map(res => res.json().data as Hero[])
 
@@ -325,6 +325,18 @@ describe('HttpClient Backend Service', () => {
       );
     }));
 
+    it('can translate `foo/heroes` to `heroes` via `parsedRequestUrl` override', async(() => {
+      http.get<Data>('api/foo/heroes')
+      .map(data => data.data as Hero[])
+      .subscribe(
+        heroes => {
+          // console.log(heroes);
+          expect(heroes.length).toBeGreaterThan(0, 'should have heroes');
+        },
+        failure
+      );
+    }));
+
     it('can get villains', async(() => {
       http.get<Data>('api/villains')
       .map(data => data.data as Hero[])