Preview creative assets before uploading

Request

This endpoint allows you to preview creative assets before they are permanently uploaded to the system. It validates the files and metadata, returning a preview of what will be created without actually storing the creatives. This is useful for verifying that your files and metadata are correct before committing to the upload.

Security

Auth0(Required scopes: offline_accessmanage:services)

Bodymultipart/form-datarequired

filenameArray of strings, (binary), [ 1 .. 10 ] itemsrequired

Creative asset files to upload

metadataobjectrequired

JSON string containing metadata for all files

curl -i -X POST \
  https://api.mediamath.com/api/v3.0/creative_draft \
  -H 'Authorization: Bearer <YOUR_TOKEN_HERE>' \
  -H 'Content-Type: multipart/form-data' \
  -F 'filename=["banner_300x250.jpg"]' \
  -F 'metadata={"advertiser_id":100212,"is_https":true,"submissions":[{"name":"banner_300x250.jpg","click_through_url":"https://example.com/click","landing_page":"https://example.com/landing","concept_id":4157184}]}'

Responses

Preview generated successfully

Bodyapplication/json

dataobject

metaobject

Response

{
  "data": {
    "uploaded_files": [ … ],
    "metadata": { … }
  },
  "meta": {
    "status": "success"
  }
}