The Catalog API Create SKU File only work with Option 1 ( send an image through URL) https://{accountName}.{environment}.``com.br/api/catalog/pvt/stockkeepingunit/skuId/file

• Go to https://developers.vtex.com/vtex-rest-api/reference/catalog-api-sku-file#catalog-api-post-sku-file

• At BODY PARAMS select Option 2 and upload an image

• Copy the cURL and send the POST

• Get the response message:

  { "Message": "Field Url is required"}

There is no workaround