title: Azure Table Storage REST API MERGE method in Angular 12
body: <p>I want to use Merge operation in Azure Table Storage with REST API approach in Angular,</p>
  <p>According to the <a href="https://docs.microsoft.com/en-us/rest/api/storageservices/insert-or-merge-entity" rel="nofollow noreferrer">doc from Microsoft</a> , I need to send MERGE request to make it works.</p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th>Method</th>
  <th>Request URI</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>MERGE</td>
  <td>https://myaccount.table.core.windows.net/mytable(PartitionKey='myPartitionKey', RowKey='myRowKey')</td>
  </tr>
  </tbody>
  </table>
  </div>
  <p>but seems that Angular not support MERGE method by default, it only support Get, Post, Put, Delete, Options, Head, Patch <a href="https://angular.io/api/common/http/HttpClient#methods" rel="nofollow noreferrer">by default</a>.</p>
  <p>Can anyone teach me how to extend or customize HTTP method in Angular ?</p>