title: SPFx upload list attachments using SPHttpClient
body: <p>I am trying to upload a list attachment with the below code but it's not working. Any kind of help would be appreciated. Thanks<img src="https://i.stack.imgur.com/skT2o.png" alt="enter image descriptionj here" title="Attachment" /></p>
  <p>I only wanted to use SPHttpClient methods and properties to upload list attachments.</p>