Add enum items in sharepoint XML file dynamically in client web part properties

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Javascript

enum

SharePoint2013

Hello
I am new to Sharepoint.
I have added an enum property to add a dropdown with static list items like this:

<pre> <Content Type="html" Src="~appWebUrl/Pages/xxxxx.aspx?{StandardTokens}" />

    <!-- Define properties in the Properties element.
         Remember to put Property Name on the Src attribute of the Content element above. -->
    <Properties>
      <Property Name="EnumProperty" Type="enum" WebBrowsable="true" WebDisplayName="AppPart Header Color" WebDescription="AppPart Header Color" WebCategory="AppPart Header Properties" DefaultValue="Blue" RequiresDesignerPermission="true">
        <EnumItems>
          <EnumItem Value="Green" WebDisplayName="Green"/>
          <EnumItem Value="Blue" WebDisplayName="Blue"/>
          <EnumItem Value="Purple" WebDisplayName="Purple"/>
        </EnumItems>
      </Property>
    </Properties>

  </ClientWebPart>

I need to bind dynamic data/data fetched from API to be bound as enum items.The limitation I have is that I cannot use server-side code. Any solution is required to be done from Client -end only.
Any guidance will be appreciated.

What I have tried:

I have tried multiple solutions but no success and everywhere I found requires server-side code.