import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.http.HttpRequestInterceptor;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;

import io.github.acm19.aws.interceptor.http.AwsRequestSigningApacheInterceptor;
import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;
import software.amazon.awssdk.auth.signer.Aws4Signer;
import software.amazon.awssdk.regions.Region;

public static void main(String[] args) throws ClientProtocolException, IOException {
        HttpRequestInterceptor interceptor = new AwsRequestSigningApacheInterceptor(
                "service",
                Aws4Signer.create(), 
                DefaultCredentialsProvider.create(), 
                Region.US_WEST_2
        );

        CloseableHttpClient client = HttpClients.custom()
                .addInterceptorLast(interceptor)
                .build();

        HttpGet httpGet = new HttpGet("https://...");
        CloseableHttpResponse httpResponse = httpClient.execute(httpGet);
        System.out.println(httpResponse.getStatusLine());

        BufferedReader reader = new BufferedReader(
                new InputStreamReader(
                        httpResponse.getEntity().getContent()
                )
        );

        String inputLine;
        StringBuffer response = new StringBuffer();
        while ((inputLine = reader.readLine()) != null) {
                response.append(inputLine);
        }
        reader.close();

        System.out.println(response.toString());
        httpClient.close();
}