How to initialize AWS SDK in spring boot application?

Question

I am writing a spring boot application which reads messages from SQS. I am able to run the application using environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY. However, I was wondering it would be simpler to pass this configuration via a file similar to application.properties. How to achieve this?

Answer 1

In spring boot application you can access properties mentioned in application.yml file with @value annotation. You can create a service like this:

@Service
public class AmazonClient {  
    private AmazonSQS sqsClient;

    @Value("${amazonProperties.accessKey}")
    private String accessKey;
    @Value("${amazonProperties.secretKey}")
    private String secretKey;

    @PostConstruct
    private void initializeAmazon() {
        BasicAWSCredentials awsCredentials = new BasicAWSCredentials(this.accessKey, this.secretKey);
        this.sqsClient = AmazonSQSClientBuilder
                .standard()
                .withCredentials(new AWSStaticCredentialsProvider(awsCredentials))
                .build();

    }
}

In application.yml file:

amazonProperties:
   accessKey: <your_access_key>
   secretKey: <your_secret_key>