Spring Boot

How to secure APIs? Very simple way of securing REST APIs. Global security for REST APIs in Spring Boot

How to fix HikariPool Failed to validate connection Warning Errors within a SpringBoot Application, Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl, No operations allowed after connection closed, Possibly consider using a shorter maxLifetime value

How to access Spring Beans from Non-Spring managed classes and pojos ? How to make an API call only when required ? How to avoid making too many API calls ? How to make an API call only when required for every kafka message ? How to make sure your application is performant when using 3rd party REST API calls ?