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 + "')/$value";
However, I am trying to switch from this because List Id's are better to reference for accuracy. So I am trying to construct the url I am trying to use. I am using this however I am not able to get the image. I just get the item properties, unlike when I use value.
"https://tenant.sharepoint.com/sites/testSite/_api/web/lists/getbytitle('docLib')/Items?$filter=ID eq '79'&$value";