Are there REST APIs to retrieve entity metadata for eloqua objects?

Question

There is a list of all the objects which can be accessed by REST for CRUD in this link: REST API - Documentation for Core Objects under the Core Objects section.
For each of the objects listed under the  Core Objects section are there is a field metadata under the Properties section.
For example for Email object, REST API - Accessing Emails , under the Properties section, there corresponding entries for fields of Emails object under the
Name ,Type, Description and Validations headings.
Is there a REST API for retrieving the same information i.e. the field metadata for an eloqua object programmatically ?
If not , it is a serious hindrance to building systems that are metadata driven and also since SOAP support is being deprecated...

Answer 1

Metadata is 'top level' information on the object, and available whether you query the individual object (a single form, or email asset) or query for multiple objects of that type (list all forms, list all emails). Consider using a depth of minimal or partial for faster performance if the specific configuration of those objects is not important..
Example:
GET /assets/forms?depth=minimal&count=2
Returns:
  "elements":
    "type":"Form",
    "currentStatus":"Draft",
    "id":"19",
    "createdAt":"1409623550",
    "createdBy":"8",
    "depth":"minimal",
    "folderId":"7",
    "name":"zzztestCS_3-9381543541_AutocompleteTest",
    "permissions":"fullControl",
    "updatedAt":"1409623623",
    "updatedBy":"8"
    "type":"Form",
    "currentStatus":"Draft",
    "id":"22",
    "createdAt":"1409781207",
    "createdBy":"11",
    "depth":"minimal",
    "folderId":"466",
    "name":"daisychain1",
    "permissions":"fullControl",
    "updatedAt":"1412779449",
    "updatedBy":"20"
  "page":1,
  "pageSize":2,
  "total":130
Without limiting the count to 2, this would return up to 1000 results if you had multiple forms in your system and give you a basic top level view of each. Similarly, you can use GET /assets/form/{id}?depth=minimal to get the same sort of information.
Other endpoints can be found on the REST livedocs page here (requires authentication):
https://secure.eloqua.com/api/docs/Dynamic/Rest/1.0/Reference.aspx
Regards,
Bojan