added svcapi ui and camunda code
[it/otf.git] / otf-frontend / client / src / app / error.interceptor.ts
diff --git a/otf-frontend/client/src/app/error.interceptor.ts b/otf-frontend/client/src/app/error.interceptor.ts
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+/*  Copyright (c) 2019 AT&T Intellectual Property.                             #\r
+#                                                                              #\r
+#   Licensed under the Apache License, Version 2.0 (the "License");            #\r
+#   you may not use this file except in compliance with the License.           #\r
+#   You may obtain a copy of the License at                                    #\r
+#                                                                              #\r
+#       http://www.apache.org/licenses/LICENSE-2.0                             #\r
+#                                                                              #\r
+#   Unless required by applicable law or agreed to in writing, software        #\r
+#   distributed under the License is distributed on an "AS IS" BASIS,          #\r
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #\r
+#   See the License for the specific language governing permissions and        #\r
+#   limitations under the License.                                             #\r
+##############################################################################*/\r
+\r
+\r
+import { Injectable } from '@angular/core';\r
+import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http';\r
+import { Observable, throwError } from 'rxjs';\r
+import { catchError } from 'rxjs/operators';\r
+import { Router } from '@angular/router';\r
+import { AuthService } from './shared/services/auth.service';\r
+\r
+\r
+@Injectable()\r
+export class ErrorInterceptor implements HttpInterceptor {\r
+    constructor(private auth: AuthService, private router: Router) {}\r
+\r
+    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {\r
+        return next.handle(request).pipe(catchError(err => {\r
+            if (err.status === 401) {\r
+                // auto logout if 401 response returned from api\r
+                this.auth.logout();\r
+                this.router.navigateByUrl('/login');\r
+            }\r
+            \r
+            const error = err.error.message || err.statusText;\r
+            return throwError(error);\r
+        }))\r
+    }\r
+}
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