cic-staff-client/docs/compodoc/interceptors/ErrorInterceptor.html

436 lines
16 KiB
HTML
Raw Normal View History

2021-05-10 20:56:20 +02:00
<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>CICADA</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="../images/favicon.ico">
<link rel="stylesheet" href="../styles/style.css">
</head>
<body>
<div class="navbar navbar-default navbar-fixed-top visible-xs">
<a href="../" class="navbar-brand">CICADA</a>
<button type="button" class="btn btn-default btn-menu ion-ios-menu" id="btn-menu"></button>
</div>
<div class="xs-menu menu" id="mobile-menu">
<div id="book-search-input" role="search"><input type="text" placeholder="Type to search"></div> <compodoc-menu></compodoc-menu>
</div>
<div class="container-fluid main">
<div class="row main">
<div class="hidden-xs menu">
<compodoc-menu mode="normal"></compodoc-menu>
</div>
<!-- START CONTENT -->
<div class="content interceptor">
<div class="content-data">
<ol class="breadcrumb">
<li>Interceptors</li>
<li>ErrorInterceptor</li>
</ol>
<ul class="nav nav-tabs" role="tablist">
<li class="active">
<a href="#info" role="tab" id="info-tab" data-toggle="tab" data-link="info">Info</a>
</li>
<li >
<a href="#source" role="tab" id="source-tab" data-toggle="tab" data-link="source">Source</a>
</li>
</ul>
<div class="tab-content">
<div class="tab-pane fade active in" id="c-info">
<p class="comment">
<h3>File</h3>
</p>
<p class="comment">
<code>src/app/_interceptors/error.interceptor.ts</code>
</p>
2021-05-12 08:16:38 +02:00
<p class="comment">
<h3>Description</h3>
</p>
<p class="comment">
<p>Intercepts and handles errors from outgoing HTTP request. </p>
</p>
2021-05-10 20:56:20 +02:00
<section>
<h3 id="index">Index</h3>
<table class="table table-sm table-bordered index-table">
<tbody>
<tr>
<td class="col-md-4">
<h6><b>Methods</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
<li>
<a href="#intercept">intercept</a>
</li>
</ul>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3 id="constructor">Constructor</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<code>constructor(errorDialogService: <a href="../injectables/ErrorDialogService.html">ErrorDialogService</a>, loggingService: <a href="../injectables/LoggingService.html">LoggingService</a>, router: <a href="https://angular.io/api/router/Router" target="_blank">Router</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
2021-05-12 08:16:38 +02:00
<div class="io-line">Defined in <a href="" data-line="21" class="link-to-prism">src/app/_interceptors/error.interceptor.ts:21</a></div>
2021-05-10 20:56:20 +02:00
</td>
</tr>
<tr>
<td class="col-md-4">
2021-05-12 08:16:38 +02:00
<div class="io-description"><p>Initialization of the error interceptor.</p>
</div>
2021-05-10 20:56:20 +02:00
<div>
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
2021-05-12 08:16:38 +02:00
<td>Description</td>
2021-05-10 20:56:20 +02:00
</tr>
</thead>
<tbody>
<tr>
<td>errorDialogService</td>
<td>
<code><a href="../injectables/ErrorDialogService.html" target="_self" >ErrorDialogService</a></code>
</td>
<td>
No
</td>
2021-05-12 08:16:38 +02:00
<td>
<code><ul>
<li>A service that provides a dialog box for displaying errors to the user.</li>
</ul>
</code>
</td>
2021-05-10 20:56:20 +02:00
</tr>
<tr>
<td>loggingService</td>
<td>
<code><a href="../injectables/LoggingService.html" target="_self" >LoggingService</a></code>
</td>
<td>
No
</td>
2021-05-12 08:16:38 +02:00
<td>
<code><ul>
<li>A service that provides logging capabilities.</li>
</ul>
</code>
</td>
2021-05-10 20:56:20 +02:00
</tr>
<tr>
<td>router</td>
<td>
<code><a href="https://angular.io/api/router/Router" target="_blank" >Router</a></code>
</td>
<td>
No
</td>
2021-05-12 08:16:38 +02:00
<td>
<code><ul>
<li>A service that provides navigation among views and URL manipulation capabilities.</li>
</ul>
</code>
</td>
2021-05-10 20:56:20 +02:00
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3 id="methods">
Methods
</h3>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="intercept"></a>
<span class="name">
<b>
intercept
</b>
<a href="#intercept"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<code>intercept(request: HttpRequest<unknown>, next: <a href="https://angular.io/api/common/http/HttpHandler" target="_blank">HttpHandler</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
2021-05-12 08:16:38 +02:00
<div class="io-line">Defined in <a href="" data-line="42"
class="link-to-prism">src/app/_interceptors/error.interceptor.ts:42</a></div>
2021-05-10 20:56:20 +02:00
</td>
</tr>
<tr>
<td class="col-md-4">
2021-05-12 08:16:38 +02:00
<div class="io-description"><p>Intercepts HTTP requests.</p>
</div>
2021-05-10 20:56:20 +02:00
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
2021-05-12 08:16:38 +02:00
<td>Description</td>
2021-05-10 20:56:20 +02:00
</tr>
</thead>
<tbody>
<tr>
<td>request</td>
<td>
<code>HttpRequest&lt;unknown&gt;</code>
</td>
<td>
No
</td>
2021-05-12 08:16:38 +02:00
<td>
<ul>
<li>An outgoing HTTP request with an optional typed body.</li>
</ul>
</td>
2021-05-10 20:56:20 +02:00
</tr>
<tr>
<td>next</td>
<td>
<code><a href="https://angular.io/api/common/http/HttpHandler" target="_blank" >HttpHandler</a></code>
</td>
<td>
No
</td>
2021-05-12 08:16:38 +02:00
<td>
<ul>
<li>The next HTTP handler or the outgoing request dispatcher.</li>
</ul>
</td>
2021-05-10 20:56:20 +02:00
</tr>
</tbody>
</table>
</div>
<div>
</div>
<div class="io-description">
<b>Returns : </b> <code>Observable&lt;HttpEvent&lt;unknown&gt;&gt;</code>
</div>
<div class="io-description">
2021-05-12 08:16:38 +02:00
<p>The error caught from the request.</p>
2021-05-10 20:56:20 +02:00
</div>
</td>
</tr>
</tbody>
</table>
</section>
</div>
<div class="tab-pane fade tab-source-code" id="c-source">
2021-05-12 08:16:38 +02:00
<pre class="line-numbers compodoc-sourcecode"><code class="language-typescript">import {
HttpErrorResponse,
2021-05-10 20:56:20 +02:00
HttpEvent,
2021-05-12 08:16:38 +02:00
HttpHandler,
2021-05-11 19:51:48 +02:00
HttpInterceptor,
2021-05-12 08:16:38 +02:00
HttpRequest,
2021-05-10 20:56:20 +02:00
} from &#x27;@angular/common/http&#x27;;
2021-05-12 08:16:38 +02:00
import { Injectable } from &#x27;@angular/core&#x27;;
import { Router } from &#x27;@angular/router&#x27;;
// Third party imports
2021-05-11 19:51:48 +02:00
import { Observable, throwError } from &#x27;rxjs&#x27;;
import { catchError } from &#x27;rxjs/operators&#x27;;
2021-05-12 08:16:38 +02:00
// Application imports
2021-05-11 19:51:48 +02:00
import { ErrorDialogService, LoggingService } from &#x27;@app/_services&#x27;;
2021-05-10 20:56:20 +02:00
2021-05-12 08:16:38 +02:00
/** Intercepts and handles errors from outgoing HTTP request. */
2021-05-10 20:56:20 +02:00
@Injectable()
export class ErrorInterceptor implements HttpInterceptor {
2021-05-12 08:16:38 +02:00
/**
* Initialization of the error interceptor.
*
* @param errorDialogService - A service that provides a dialog box for displaying errors to the user.
* @param loggingService - A service that provides logging capabilities.
* @param router - A service that provides navigation among views and URL manipulation capabilities.
*/
2021-05-10 20:56:20 +02:00
constructor(
private errorDialogService: ErrorDialogService,
private loggingService: LoggingService,
private router: Router
) {}
2021-05-12 08:16:38 +02:00
/**
* Intercepts HTTP requests.
*
* @param request - An outgoing HTTP request with an optional typed body.
* @param next - The next HTTP handler or the outgoing request dispatcher.
* @returns The error caught from the request.
*/
2021-05-10 20:56:20 +02:00
intercept(request: HttpRequest&lt;unknown&gt;, next: HttpHandler): Observable&lt;HttpEvent&lt;unknown&gt;&gt; {
return next.handle(request).pipe(
catchError((err: HttpErrorResponse) &#x3D;&gt; {
let errorMessage: string;
if (err.error instanceof ErrorEvent) {
// A client-side or network error occurred. Handle it accordingly.
errorMessage &#x3D; &#x60;An error occurred: ${err.error.message}&#x60;;
} else {
// The backend returned an unsuccessful response code.
// The response body may contain clues as to what went wrong.
2021-05-11 19:51:48 +02:00
errorMessage &#x3D; &#x60;Backend returned code ${err.status}, body was: ${JSON.stringify(
err.error
)}&#x60;;
2021-05-10 20:56:20 +02:00
}
2021-05-11 19:51:48 +02:00
this.loggingService.sendErrorLevelMessage(errorMessage, this, { error: err });
2021-05-10 20:56:20 +02:00
switch (err.status) {
2021-05-11 19:51:48 +02:00
case 401: // unauthorized
2021-05-10 20:56:20 +02:00
this.router.navigateByUrl(&#x27;/auth&#x27;).then();
break;
case 403: // forbidden
alert(&#x27;Access to resource is not allowed!&#x27;);
break;
}
// Return an observable with a user-facing error message.
return throwError(err);
})
);
}
}
</code></pre>
</div>
</div>
</div><div class="search-results">
<div class="has-results">
<h1 class="search-results-title"><span class='search-results-count'></span> result-matching "<span class='search-query'></span>"</h1>
<ul class="search-results-list"></ul>
</div>
<div class="no-results">
<h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1>
</div>
</div>
</div>
<!-- END CONTENT -->
</div>
</div>
<script>
var COMPODOC_CURRENT_PAGE_DEPTH = 1;
var COMPODOC_CURRENT_PAGE_CONTEXT = 'interceptor';
var COMPODOC_CURRENT_PAGE_URL = 'ErrorInterceptor.html';
var MAX_SEARCH_RESULTS = 15;
</script>
<script src="../js/libs/custom-elements.min.js"></script>
<script src="../js/libs/lit-html.js"></script>
<!-- Required to polyfill modern browsers as code is ES5 for IE... -->
<script src="../js/libs/custom-elements-es5-adapter.js" charset="utf-8" defer></script>
<script src="../js/menu-wc.js" defer></script>
<script src="../js/libs/bootstrap-native.js"></script>
<script src="../js/libs/es6-shim.min.js"></script>
<script src="../js/libs/EventDispatcher.js"></script>
<script src="../js/libs/promise.min.js"></script>
<script src="../js/libs/zepto.min.js"></script>
<script src="../js/compodoc.js"></script>
<script src="../js/tabs.js"></script>
<script src="../js/menu.js"></script>
<script src="../js/libs/clipboard.min.js"></script>
<script src="../js/libs/prism.js"></script>
<script src="../js/sourceCode.js"></script>
<script src="../js/search/search.js"></script>
<script src="../js/search/lunr.min.js"></script>
<script src="../js/search/search-lunr.js"></script>
<script src="../js/search/search_index.js"></script>
<script src="../js/lazy-load-graphs.js"></script>
</body>
</html>