I'm bringing a Launch Discount here for my Udemy Course, it teaches you how to create a REST Api with Spark java, the micro framework, MongoDB, and GridFS incl. Guice for Dependency Injection(free preview).
The Api will be able to upload videos and stream them, and some additional basic CRUD operations.
More lessons are being added.
I'm constantly gonna be improving the course and adding more topics upon request. Users can communicate with me on there.
If you ever wanted to make something like a video sharing backend, then this is for you. You'll learn lots more of.
Please check it out, and the first link gives you a completely free course.