Hackforge Academy

Explanation

Redis stores frequently accessed data in memory to improve API performance.

Code:

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

Explanation

Enable caching in Spring Boot.

Code:

@SpringBootApplication
@EnableCaching
public class Application{}

Explanation

Cache API responses using @Cacheable.

Code:

@Cacheable("students")
public List<Student> getStudents(){
    return repository.findAll();
}

Explanation

Update cache when data changes.

Code:

@CachePut("students")
public Student update(Student student){
    return repository.save(student);
}

Explanation

Remove cache entries after deleting records.

Code:

@CacheEvict(value="students",allEntries=true)
public void delete(Long id){
    repository.deleteById(id);
}