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Amazon CodeGuruDetector Library

Region specification missing from AWS client initialization Info

If you don’t explicitly set an AWS Region, the SDK consults the default Region provider chain to determine the Region to use. This might cause a delay that causes a poor cold-start. If code portability is not an issue, consider explicitly setting the AWS Region using the withRegion method.

Detector ID
java/aws-service-client-initialization@v1.0
Category
Common Weakness Enumeration (CWE) external icon
-

Noncompliant example

1public class AwsServiceClientInitializationNoncompliant implements RequestHandler<String, Void> {
2
3    private DataPipeline dataPipeline;
4
5    public void AwsServiceClientInitializationNoncompliant() {
6        // Noncompliant: AWS region provider not specified.
7        dataPipeline = DataPipelineAsyncClientBuilder.defaultClient();
8    }
9
10    @Override
11    public Void handleRequest(String requestEvent, Context context) {
12        // Handle the request here.
13        return null;
14    }
15}

Compliant example

1public class AwsServiceClientInitializationCompliant implements RequestHandler<String, Void> {
2
3    private DataPipeline dataPipeline;
4
5    public void AwsServiceClientInitializationCompliant() {
6        // Compliant: AWS region provider specified.
7        dataPipeline = DataPipelineAsyncClientBuilder.standard().withRegion(Regions.US_WEST_2).build();
8    }
9
10    @Override
11    public Void handleRequest(String requestEvent, Context context) {
12        // Handle the request here.
13        return null;
14    }
15}