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{
"id": "api/common/http/HttpHandler",
"title": "HttpHandler",
"contents": "\n\n<article>\n <div class=\"breadcrumb-container\">\n <div class=\"breadcrumb\">\n <script type=\"application/ld+json\">\n {\n \"@context\": \"http://schema.org\",\n \"@type\": \"BreadcrumbList\",\n \"itemListElement\": [\n { \"@type\": \"ListItem\", \"position\": 1, \"item\": { \"@id\": \"https://angular.io//api\", \"name\": \"API\" } },\n { \"@type\": \"ListItem\", \"position\": 2, \"item\": { \"@id\": \"https://angular.io/api/common\", \"name\": \"@angular/common\" } },\n { \"@type\": \"ListItem\", \"position\": 3, \"item\": { \"@id\": \"https://angular.io/api/common/http\", \"name\": \"@angular/common/http\" } },\n { \"@type\": \"ListItem\", \"position\": 4, \"item\": { \"@id\": \"https://angular.io/api/common/http/HttpHandler\", \"name\": \"HttpHandler\" } }\n ]\n }\n </script>\n <a href=\"/api\">API</a> > <a href=\"api/common\">@angular/common</a> > <a href=\"api/common/http\">@angular/common/http</a>\n </div>\n <div class=\"github-links\">\n <a href=\"https://github.com/angular/angular/edit/master/packages/common/http/src/backend.ts?message=docs(common)%3A%20describe%20your%20change...#L12-L27\" aria-label=\"Suggest Edits\" title=\"Suggest Edits\"><i class=\"material-icons\" aria-hidden=\"true\" role=\"img\">mode_edit</i></a>\n <a href=\"https://github.com/angular/angular/tree/12.0.0-next.7/packages/common/http/src/backend.ts#L12-L27\" aria-label=\"View Source\" title=\"View Source\"><i class=\"material-icons\" aria-hidden=\"true\" role=\"img\">code</i></a>\n</div>\n </div>\n \n <header class=\"api-header\">\n <h1 id=\"httphandler\">HttpHandler<a title=\"Link to this heading\" class=\"header-link\" aria-hidden=\"true\" href=\"api/common/http/HttpHandler#httphandler\"><i class=\"material-icons\">link</i></a></h1>\n \n <label class=\"api-type-label class\">class</label>\n \n \n \n </header>\n \n <aio-toc class=\"embedded\"></aio-toc>\n\n <div class=\"api-body\">\n \n <section class=\"short-description\">\n <p>Transforms an <code><a href=\"api/common/http/HttpRequest\" class=\"code-anchor\">HttpRequest</a></code> into a stream of <code><a href=\"api/common/http/HttpEvent\" class=\"code-anchor\">HttpEvent</a></code>s, one of which will likely be a\n<code><a href=\"api/common/http/HttpResponse\" class=\"code-anchor\">HttpResponse</a></code>.</p>\n\n <p><a href=\"api/common/http/HttpHandler#description\">See more...</a></p>\n </section>\n \n \n \n <section class=\"class-overview\">\n<code-example language=\"ts\" hidecopy=\"true\">\nabstract class <a href=\"api/common/http/HttpHandler\" class=\"code-anchor\">HttpHandler</a> {\n <a class=\"code-anchor\" href=\"api/common/http/HttpHandler#handle\">abstract <span class=\"member-name\">handle</span>(req: HttpRequest&#x3C;any>): Observable&#x3C;HttpEvent&#x3C;any>></a>\n}\n</code-example>\n\n \n \n <div class=\"descendants class\">\n <h2 id=\"subclasses\">Subclasses<a title=\"Link to this heading\" class=\"header-link\" aria-hidden=\"true\" href=\"api/common/http/HttpHandler#subclasses\"><i class=\"material-icons\">link</i></a></h2>\n \n\n<ul>\n \n <li>\n <code><a href=\"api/common/http/HttpBackend\" class=\"code-anchor\">HttpBackend</a></code>\n \n\n<ul>\n \n <li>\n <code><a href=\"api/common/http/JsonpClientBackend\" class=\"code-anchor\">JsonpClientBackend</a></code>\n \n\n\n </li>\n \n <li>\n <code><a href=\"api/common/http/HttpXhrBackend\" class=\"code-anchor\">HttpXhrBackend</a></code>\n \n\n\n </li>\n \n</ul>\n\n\n </li>\n \n</ul>\n\n\n </div>\n \n\n</section>\n\n\n \n\n \n \n<section class=\"description\">\n <h2 id=\"description\">Description<a title=\"Link to this heading\" class=\"header-link\" aria-hidden=\"true\" href=\"api/common/http/HttpHandler#description\"><i class=\"material-icons\">link</i></a></h2>\n <p><code><a href=\"api/common/http/HttpHandler\" class=\"code-anchor\">HttpHandler</a></code> is injectable. Whe
}