SPOL REST api url not functioning with a SPOL do lib

Question

I am using REST with SPOL and I am trying to get a image from a image doc. The way I would usually do it works fine for me because I am using a relative url to the picture.

The ways I usually do this

imgUrl = "https://tenant.sharepoint.com/sites/testSite/_api/web/GetFileByServerRelativeUrl('/sites/ContentCenter/docLib/" + spItems[z].text + "." + spItems[z].fileType + "')/$value";

However, I am trying to switch from this because List Id's are better to reference for accuracy. So I am trying to construct the url I am trying to use. I am using this however I am not able to get the image. I just get the item properties, unlike when I use value.

Not working

"https://tenant.sharepoint.com/sites/testSite/_api/web/lists/getbytitle('docLib')/Items?$filter=ID eq '79'&$value";

Answer 1

After using some Fiddler this was the url that worked for me

imgUrl = "https://tentant.sharepoint.com/sites/testSite/_api/web/lists/getbytitle('docLib')/items('79')/File/$value";