Method head

packages/common/http/src/client.ts:1447–1455

* Constructs an observable that, when subscribed, causes the configured * \`HEAD\` request to execute on the server. The \`HEAD\` method returns * meta information about the resource without transferring the * resource itself. See the individual overloads for * details on the return type

(
    url: string,
    options: {
      observe?: 'body' | 'events' | 'response';
      responseType?: 'arraybuffer' | 'blob' | 'json' | 'text';
    } & HttpClientCommonOptions = {},
  )

   * details on the return type.
   */
  head(
    url: string,
    options: {
      observe?: 'body' | 'events' | 'response';
      responseType?: 'arraybuffer' | 'blob' | 'json' | 'text';
    } & HttpClientCommonOptions = {},
  ): Observable<any> {
    return this.request<any>('HEAD', url, options as any);
  }

  /**
   * Constructs a `JSONP` request for the given URL and name of the callback parameter.