add error handling

dist/index.js

@@ -206,6 +206,10 @@ function getRateLimit(token) {
         headers: {
             Accept: 'application/vnd.github.package-deletes-preview+json'
         }
+    })).pipe(operators_1.catchError(err => {
+        return rxjs_1.throwError(err.errors && err.errors.length > 0
+            ? `${err.errors[0].message}`
+            : `unknown error`);
     }));
 }
 exports.getRateLimit = getRateLimit;

src/version/delete-version.ts

@@ -52,6 +52,14 @@ export function getRateLimit(token: string): Observable<RateLimitResponse> {
         Accept: 'application/vnd.github.package-deletes-preview+json'
       }
     }) as Promise<RateLimitResponse>
+  ).pipe(
+    catchError(err => {
+      return throwError(
+        err.errors && err.errors.length > 0
+          ? `${err.errors[0].message}`
+          : `unknown error`
+      )
+    })
   )
 }