post https://uat-api.thredd.com/ads/api/v1/aliases/getByExternalId
Find the internal id associated with an externalId initially provided during a create operation.
Sample request:
POST ads/api/v1/aliases/aliasId
{
"externalId": "21267931-7975-4b61-be7a-86915883b2b4",
"type": "ALIAS"
}