REST API's for document integration to OTM

Summary:

Has anyone successfully used REST APIs for document integration with OTM?

We need to bring shipment-related documents into OTM and want to use REST APIs to upload documents and content instead of the traditional <Document> XML method.

I tried creating a multipart request to create the document first, then upload the document content as described here, but the request fails.

Sample JSON request:

{

"documentGid":"MY_DOMAIN.TEST_DOC_001",

"documentDefGid":"MY_DOMAIN.BILL_OF_LADING",

"description": "Uploaded via Postman REST API",

"isTemplate": "N"

}

Thanks,

Arun