REST ADD MULTIPLE DOCUMENTS

We are trying to add multiple documents with Meta Data to the REST API in a single call. We are able to add a single document with meta data using a call like

POST /api/packages/CexKAcIADCrhmET2TheZdEtnnQA=/documents/ HTTP/1.1
Host: sandbox.esignlive.com
Authorization: Basic XXXXXXXXXXXXXXXXXXXXX
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
Cache-Control: no-cache

------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="payload"

 {
    "description": "A test document 1.",
    "name": "45-Sold Notice.pdf"
  }
------WebKitFormBou