Hello Amazon Location Service

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 *
 * In addition, you need to create a collection using the AWS Management
 * console. For information, see the following documentation.
 *
 * https://docs.aws.amazon.com/location/latest/developerguide/geofence-gs.html

 */
public class HelloLocation {

    private static LocationAsyncClient locationAsyncClient;
    private static final Logger logger = LoggerFactory.getLogger(HelloLocation.class);

    // This Singleton pattern ensures that only one `LocationClient`
    // instance.
    private static LocationAsyncClient getClient() {
        if (locationAsyncClient == null) {
            SdkAsyncHttpClient httpClient = NettyNioAsyncHttpClient.builder()
                .maxConcurrency(100)
                .connectionTimeout(Duration.ofSeconds(60))
                .readTimeout(Duration.ofSeconds(60))
                .writeTimeout(Duration.ofSeconds(60))
                .build();

            ClientOverrideConfiguration overrideConfig = ClientOverrideConfiguration.builder()
                .apiCallTimeout(Duration.ofMinutes(2))
                .apiCallAttemptTimeout(Duration.ofSeconds(90))
                .retryStrategy(RetryMode.STANDARD)
                .build();

            locationAsyncClient = LocationAsyncClient.builder()
                .httpClient(httpClient)
                .overrideConfiguration(overrideConfig)
                .build();
        }
        return locationAsyncClient;
    }

    public static void main(String[] args) {
        final String usage = """

            Usage:
                <collectionName>

            Where:
                collectionName - The Amazon location collection name.
            """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String collectionName = args[0];
        listGeofences(collectionName);
    }

    /**
     * Lists geofences from a specified geofence collection asynchronously.
     *
     * @param collectionName The name of the geofence collection to list geofences from.
     * @return A {@link CompletableFuture} representing the result of the asynchronous operation.
     *         The future completes when all geofences have been processed and logged.
     */
    public static CompletableFuture<Void> listGeofences(String collectionName) {
        ListGeofencesRequest geofencesRequest = ListGeofencesRequest.builder()
                .collectionName(collectionName)
                .build();

        ListGeofencesPublisher paginator = getClient().listGeofencesPaginator(geofencesRequest);
        CompletableFuture<Void> future = paginator.subscribe(response -> {
            if (response.entries().isEmpty()) {
                logger.info("No Geofences were found in the collection.");
            } else {
                response.entries().forEach(geofence ->
                        logger.info("Geofence ID: " + geofence.geofenceId())
                );
            }
        });
        return future;
    }
}

import { fileURLToPath } from "node:url";
import {
  LocationClient,
  ListGeofenceCollectionsCommand,
} from "@aws-sdk/client-location";

/**
 * Lists geofences from a specified geofence collection asynchronously.
 */
export const main = async () => {
  const region = "eu-west-1";
  const locationClient = new LocationClient({ region: region });
  const listGeofenceCollParams = {
    MaxResults: 100,
  };
  try {
    const command = new ListGeofenceCollectionsCommand(listGeofenceCollParams);
    const response = await locationClient.send(command);
    const geofenceEntries = response.Entries;
    if (geofenceEntries.length === 0) {
      console.log("No Geofences were found in the collection.");
    } else {
      for (const geofenceEntry of geofenceEntries) {
        console.log(`Geofence ID: ${geofenceEntry.CollectionName}`);
      }
    }
  } catch (error) {
    console.error(
      `A validation error occurred while creating geofence: ${error} \n Exiting program.`,
    );
    return;
  }
};

/**
Before running this Kotlin code example, set up your development environment,
including your credentials.

For more information, see the following documentation topic:
https://docs.aws.amazon.com/sdk-for-kotlin/latest/developer-guide/setup.html

In addition, you need to create a collection using the AWS Management
console. For information, see the following documentation.

https://docs.aws.amazon.com/location/latest/developerguide/geofence-gs.html

 */
suspend fun main(args: Array<String>) {
    val usage = """

        Usage:
            <colletionName>

        Where:
            colletionName - The Amazon location collection name. 
    """

    if (args.size != 1) {
        println(usage)
        exitProcess(0)
    }
    val colletionName = args[0]
    listGeofences(colletionName)
}

/**
 * Lists the geofences for the specified collection name.
 *
 * @param collectionName the name of the geofence collection
 */
suspend fun listGeofences(collectionName: String) {
    val request = ListGeofencesRequest {
        this.collectionName = collectionName
    }

    LocationClient.fromEnvironment { region = "us-east-1" }.use { client ->
        val response = client.listGeofences(request)
        val geofences = response.entries
        if (geofences.isNullOrEmpty()) {
            println("No Geofences found")
        } else {
            geofences.forEach { geofence ->
                println("Geofence ID: ${geofence.geofenceId}")
            }
        }
    }
}