Stop Your JWT Token From Breaking! Hidden Causes Explained

Описание: Your JWT token fails, becomes invalid, or randomly stops working — but why?
In this video, I break down the real reasons JWT tokens fail in Spring Boot and exactly how to fix them.

You’ll learn:

✔ Why your JWT becomes invalid after restart
✔ Why signature validation fails
✔ How to fix “Invalid Signature” errors
✔ Why JWT breaks with different environments
✔ How to properly set your secret key
✔ How to fix token expiration issues
✔ Why roles/authorities are not detected
✔ Common mistakes developers make in JWT Security

Whether you're using MySQL, PostgreSQL, Spring Security, or custom filters, this video explains the root of all JWT failures and how to avoid them forever.

🔥 What You’ll Learn in This Video:
• How JWT authentication works
• How Spring validates tokens
• Why login works but APIs fail
• Why token is valid in Postman but not browser
• Best practices for secure JWT authentication

📘 Technologies Covered:
Spring Boot • Spring Security • JWT • Java • MySQL • IntelliJ IDEA • Maven

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