Return Specific Content Type in Site Collection Using REST API

Question

I am looking for a way to use the REST API to return specific fields of a specific content type so that I can bind it to a table.

It seems the List API is used against a specific List but in my case I want to search all lists and return only a specific content type that I have defined in the site collection. Additionally I want it to return 4 specific fields of that content type so I can bind it to a table.

Answer 1

Use the Search API with a property restriction of

 ContentType:[Your_CTYPE_Here]

Answer 2

REST request to retrieve fields in Content Type

The following example demonstrates how to return all fields in Task Content Type:

/_api/web/contenttypes/getById('0x0108')/fields

REST request to retrieve specific fields in Content Type

The following example demonstrates how to return Title, AssignedTo, TaskDueDate and TaskStatus fields in Task Content Type:

/_api/web/contenttypes/getById('0x0108')/fields?$filter=(InternalName eq 'Title') or (InternalName eq 'AssignedTo') or (InternalName eq 'TaskDueDate') or (InternalName eq 'TaskStatus')