External Json as frontmatter?

Is it possible to use straight JSON to create a blog articles? Right now I have my articles stored as .html.haml files that have all of their JSON frontmatter at the top of the page. What I would like to accomplish is, to generate articles from pure .json files. I would have a template that all of the JSON would run through, so there would never be an actual .html file for each article, just a JSON file and a template. Has anyone else done this/ know how I could go about accomplishing this?