I have simple search REST GET query as below :

https://<site url>/_api/search/query?querytext='research'&selectproperties='Title,Author,Created,ContentTypeId'

The search result XML returned is like below : enter image description here

But the 'Author' field is returned with a value null.

What could be a possible reason?

  • What shows up if you manually search for for these articles in the UI -- specifically when you mouse over these objects what is in the "Contributors Include" area? If there is no author on whatever it is you're looking at, that could be a reason it's showing up null. Everything in my environment seems to have something for the author though, even if it's just 'System Account'
    – John-M
    Nov 20, 2014 at 15:32
  • Lookups need to be expanded. You can not simply select Author.
    – Nils
    May 14, 2019 at 21:37

1 Answer 1


Make sure the internal name of the fields matches the field name you are using in your request. I've created an author field for a list doing something similar and the internal name defaulted to Author0 as Author already existed.

And if it is a lookup field you are using you'll have to use something like Author/Name&$expand=Author/Name in your request.

  • The 'Author' field in my case is the internal name of default SharePoint field whose display name is 'Created By'
    – Bishnu Das
    Nov 4, 2014 at 5:28

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