Add DataElements to a Library

POST  /libraries/:library_id/relationships/data_elements

curl https://reactor.adobe.io/libraries/:library_id/relationships/data_elements \
  -H "Accept: application/vnd.api+json;revision=1" \
  -H "Content-Type: application/vnd.api+json" \
  -H "Authorization: Bearer [TOKEN]" \
  -H "X-Api-Key: [KEY]" \
  -H "X-Gw-Ims-Org-Id: [ORG_ID]" \
  -X POST \
  -d \
'
{
  "data": [
    {
      "id": "DE7e9e58e03b854f3ca9fe76617b6e30cf",
      "type": "data_elements"
    }
  ]
}'

{
  "data": [
    {
      "type": "data_elements",
      "id": "DE7e9e58e03b854f3ca9fe76617b6e30cf"
    }
  ],
  "links": {
    "related": "https://reactor.adobe.io/libraries/LBbce7b4abf9274576b13e4d97b7ed9a77/data_elements",
    "self": "https://reactor.adobe.io/libraries/LBbce7b4abf9274576b13e4d97b7ed9a77/relationships/data_elements"
  }
}