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'}, 'Querytext':'alan', 'SelectProperties': { 'results':['Title,PictureURL'] }, 'rowlimit':5, '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?