Full 2025 Backend Dev Crash Course for Beginners With Spring Boot (Kotlin, JWT Auth, MongoDB)

Full 2025 Backend Dev Crash Course for Beginners With Spring Boot (Kotlin, JWT Auth, MongoDB)
Get an introduction to building a CRUD backend that allows users to register and login and then save notes in a MongoDB instance. This crash course uses Kotlin and covers REST APIs from the absolute basics up to building a fully working secured backend. ⭐ Courses with real-life practices ⭐ Save countless hours of time ⭐ 100% money back guarantee for 30 days ⭐ Become a professional Android developer now: https://pl-coding.com/premium-courses/ Download IntelliJ: https://ift.tt/Vv8IJwj Mongo Atlas registration: https://ift.tt/dQgn6wz 💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks: https://pl-coding.com/drop-table-mentoring/ Regular programming advice on my Instagram page: https://ift.tt/NQ2dvR3 Join my Discord server: https://ift.tt/qK2ayEs Get the source code for this video here: https://ift.tt/iDNe7cH Kotlin Crash Course: https://youtu.be/dzUc9vrsldM?si=8vGs792MWd4_cEyX 00:00 Prerequisites 1:43 - What even is a REST API? 7:25 - What is a backend framework? 9:55 - What we will build 11:02 - Creating a Spring Boot project 15:20 - Project roundtrip 21:18 - Mongo Atlas setup 33:14 - Saving notes to MongoDB 1:06:00 - Base setup for security config 1:12:55 - Checking notes in Mongo Atlas 1:14:24 - Spring's Bean mechanism 1:17:30 - Deleting notes 1:21:05 - Setting up the user collection 1:30:12 - JWT generation & verification 1:57:27 - User registration & login 2:35:55 - Responding with correct status codes 2:44:57 - Field validation 2:52:47 - Trying it out & fixing last bugs

https://www.youtube.com/watch?v=tXC9DQRWHUQ