AmazonS3Controller.java

@RestController
@RequestMapping("/api/v1/storage")
public class AmazonS3Controller {

    private AmazonS3Service amazonS3Service;

    @Autowired
    AmazonS3Controller(AmazonS3Service amazonS3Service){
        this.amazonS3Service = amazonS3Service;
    }

    @PostMapping("/uploadFile")
    public String uploadFile(@RequestPart(value = "file") MultipartFile file) {
        return this.amazonS3Service.uploadFile(file);
    }

    @DeleteMapping("/deleteFile")
    public String deleteFile(@RequestPart(value = "url") String fileUrl) {
        return this.amazonS3Service.deleteFileFromS3Bucket(fileUrl);
    }
}