Does the module support taxing the shipping?

The module does send the shipping cost to Taxjar, but I honestly don't know how that gets handled on the Taxjar end.

Do you know of a jurisdiction in which shipping is taxable, so that we could test it?

Thank you aaronbauman for working on this module. Based on TaxJar, the following currently charge sales tax on shipping.

Arkansas
Connecticut
District of Columbia
Georgia
Hawaii
Illinois
Indiana
Kentucky
Louisiana
Minnesota
Mississippi
Nebraska
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Vermont
Washington
Wisconsin
West Virginia

I created an order with an Illinois shipping address and the shipping was not taxed. The tax rate is 10%. With shipping, the total tax should be $750.76. Please see attachment.

Thank you,
Paul

It looks like $adjustments is returning an empty array in the buildRequest method.

    $adjustments = $order->getAdjustments();

    foreach ($adjustments as $adjustment) {
      if ($adjustment->getType() === 'shipping') {
        $request_body['shipping'] += $adjustment->getAmount()?->getNumber() ?? 0;
      }
    }

What's strange is that a shipping adjustment is attached to the order on the order edit form. Please see attached.

Thank you,
Paul