I am hoping to save someone some time as I couldn't find anyone talking about this anywhere.

I am looking at the SharePoint 2013 Search Rest API documentation and decided to switch my GET calls to POST to clean up code and allow for more complicated queries I foresee having to write.

Looking at this article, I build the queries to send to /_api/search/postquery.

After building a query similar to my GET one:

__metadata : {'type' : 'Microsoft.Office.Server.Search.REST.SearchRequest'},
'SelectProperties': { 'results':['Title,PictureURL'] },
'SourceId': 'b09a7990-05ea-4af9-81ef-edfab16c4e31'

And solving this interesting issue.

I am now getting an error:

The parameter __metadata does not exist in method postquery

What am I missing?

1 Answer 1


The correct format for the Rest API POST Search Query is:

  'request': {
    '__metadata' : {
      'type' : 'Microsoft.Office.Server.Search.REST.SearchRequest'
    'Querytext': 'query'

I found an example here in the second image.

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