AWS SDK for Java has been certified for use with Wasabi.
To use the Java SDK v2, execute the following steps:
1) Install Java and Maven, referring to this guide.
2) Follow the guide Using the SDK with Apache Maven and add the required dependencies in the pom.xml file.
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>getstarted</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.shade.plugin.version>3.2.1</maven.shade.plugin.version>
<maven.compiler.plugin.version>3.6.1</maven.compiler.plugin.version>
<exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
<aws.java.sdk.version>2.27.21</aws.java.sdk.version> <!-- Updated version -->
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>software.amazon.awssdk</groupId>
<artifactId>bom</artifactId>
<version>${aws.java.sdk.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>software.amazon.awssdk</groupId>
<artifactId>s3</artifactId>
<version>2.27.21</version>
</dependency>
<dependency>
<groupId>software.amazon.awssdk</groupId>
<artifactId>iam</artifactId>
<version>2.27.21</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.plugin.version}</version>
</plugin>
</plugins>
</build>
</project> 3) Configure additional AWS CLI profile for Wasabi account using the Wasabi keys (optional).
In this example, we have set the profile name as "wasabi" in the "~/.aws/credentials" file. To help our customers use this SDK with Wasabi, we have provided examples for both IAM and S3. This example shows:
Other examples can be referred from the AWS documentation.
Important: This example discusses the use of Wasabi's us-east-1 storage region. To use other Wasabi storage regions, please use the appropriate Wasabi service URL as described in this article.
Setting the Credentials
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.iam.IamClient;
import software.amazon.awssdk.core.exception.SdkException;
public class GeneralConnection {
public static void main(String[] args) {
final String iamEndpoint = "https://iam.wasabisys.com"; // IAM Endpoint URL
final Region region = Region.US_EAST_1;
String profileName = "your-profile-name"; // Profile name
try {
ProfileCredentialsProvider credentialsProvider = ProfileCredentialsProvider.create(profileName);
credentialsProvider.resolveCredentials();
IamClient iamClient = IamClient.builder()
.endpointOverride(java.net.URI.create(iamEndpoint))
.region(region)
.credentialsProvider(credentialsProvider)
.build();
System.out.println("Successfully connected to Wasabi IAM using profile: " + profileName);
} catch (SdkException e) {
String errorMessage = e.getMessage();
if (errorMessage.contains("Profile file contained no credentials")) {
System.err.println("Error: The profile '" + profileName + "' is missing credentials.");
} else if (errorMessage.contains("InvalidAccessKeyId")) {
System.err.println("Error: The provided credentials for profile '" + profileName + "' are invalid.");
} else {
System.err.println("Error occurred: " + errorMessage);
}
} catch (Exception e) {
System.err.println("An unexpected error occurred: " + e.getMessage());
}
}
} Connecting to IAM and S3 Endpoints
IAM
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.iam.IamClient;
import software.amazon.awssdk.services.iam.model.ListUsersRequest;
import software.amazon.awssdk.services.iam.model.ListUsersResponse;
import java.net.URI;
public class IAMConnectionTest {
public static void main(String[] args) {
String accessKey = "your-access-key"; // Replace with your access key
String secretKey = "your-secret-key"; // Replace with your secret key
String region = "us-east-1"; // IAM region us-east-1
String endpointUrl = "https://iam.wasabisys.com"; // IAM endpoint URL
IamClient iamClient = IamClient.builder()
.region(Region.of(region))
.credentialsProvider(StaticCredentialsProvider.create(
AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(URI.create(endpointUrl))
.build();
try {
ListUsersResponse response = iamClient.listUsers(ListUsersRequest.builder().maxItems(5).build());
System.out.println("Successfully connected to IAM! Users:");
response.users().forEach(user -> System.out.println(user.userName()));
} catch (Exception e) {
System.err.println("Error occurred while connecting to IAM: " + e.getMessage());
e.printStackTrace();
} finally {
iamClient.close();
}
}
} S3
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import java.net.URI;
public class s3Connection {
public static void main(String[] args) {
String accessKey = "your-access-key"; // Replace with your access key
String secretKey = "your-secret-access-key"; // Replace with your secret key
String region = "us-east-1"; // Replace with your region
String endpointUrl = "https://s3.wasabisys.com"; // Specify the endpoint URL associated with your bucket region
S3Client s3Client = S3Client.builder()
.region(Region.of(region))
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(URI.create(endpointUrl))
.build();
System.out.println("Successfully connected to Wasabi S3!");
s3Client.close();
}
} Creating a User Using IAM
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.core.waiters.WaiterResponse;
import software.amazon.awssdk.services.iam.IamClient;
import software.amazon.awssdk.services.iam.model.CreateUserRequest;
import software.amazon.awssdk.services.iam.model.CreateUserResponse;
import software.amazon.awssdk.services.iam.model.IamException;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.iam.waiters.IamWaiter;
import software.amazon.awssdk.services.iam.model.GetUserRequest;
import software.amazon.awssdk.services.iam.model.GetUserResponse;
import java.net.URI;
public class CreateUser {
public static void main(String[] args) {
String username = "your-yser-name"; // Replace with your desired username
String accessKey = "your-access-key"; // Replace with your AWS Access Key
String secretKey = "your-secret-key"; // Replace with your AWS Secret Key
Region region = Region.of("us-east-1"); // region
URI endpoint = URI.create("https://iam.wasabisys.com"); // IAM Endpoint URL
IamClient iamClient = IamClient.builder()
.region(region)
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(endpoint)
.build();
String result = createIAMUser(iamClient, username);
System.out.println("Successfully created user: " + result);
iamClient.close();
}
public static String createIAMUser(IamClient iam, String username) {
try {
IamWaiter iamWaiter = iam.waiter();
CreateUserRequest createUserRequest = CreateUserRequest.builder()
.userName(username)
.build();
CreateUserResponse createUserResponse = iam.createUser(createUserRequest);
System.out.println("User creation response: " + createUserResponse.user().userName());
GetUserRequest getUserRequest = GetUserRequest.builder()
.userName(createUserResponse.user().userName())
.build();
WaiterResponse<GetUserResponse> waitUntilUserExists = iam.waiter().waitUntilUserExists(getUserRequest);
waitUntilUserExists.matched().response().ifPresent(user -> System.out.println("User exists: " + user.user().userName()));
return createUserResponse.user().userName();
} catch (IamException e) {
System.err.println("Error occurred: " + e.awsErrorDetails().errorMessage());
System.exit(1);
}
return "";
}
} Creating a Bucket
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.CreateBucketRequest;
import software.amazon.awssdk.services.s3.model.HeadBucketRequest;
import software.amazon.awssdk.services.s3.model.S3Exception;
import java.net.URI;
public class CreateBucket {
public static void main(String[] args) {
String accessKey = "your-access-key"; // Replace with your access key
String secretKey = "your-secret-key"; // Replace with your secret key
Region region = Region.of("us-east-1"); // Use the correct bucket region
String endpointUrl = "https://s3.us-east-1.wasabisys.com"; // Use the appropriate Endpoint URL accoring to your bucket region
S3Client s3Client = S3Client.builder()
.region(region)
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(URI.create(endpointUrl))
.build();
String bucketName = "your-bucket-name"; //please enter the bucket name
createBucket(s3Client, bucketName);
s3Client.close();
}
private static void createBucket(S3Client s3Client, String bucketName) {
try {
s3Client.createBucket(CreateBucketRequest.builder().bucket(bucketName).build());
System.out.println("Bucket " + bucketName + " created successfully.");
s3Client.waiter().waitUntilBucketExists(HeadBucketRequest.builder().bucket(bucketName).build());
System.out.println(bucketName + " is ready.");
} catch (S3Exception e) {
System.err.println("Error creating bucket: " + e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
} Uploading an Object to the Bucket
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.services.s3.model.PutObjectRequest;
import software.amazon.awssdk.services.s3.model.PutObjectResponse;
import software.amazon.awssdk.core.async.AsyncRequestBody;
import software.amazon.awssdk.services.s3.S3AsyncClient;
import software.amazon.awssdk.regions.Region;
import java.nio.file.Paths;
import java.util.concurrent.CompletableFuture;
public class UploadObject {
private final S3AsyncClient s3AsyncClient;
public UploadObject(String accessKey, String secretKey, String region, String endpointUrl) {
try {
this.s3AsyncClient = S3AsyncClient.builder()
.region(Region.of(region))
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(java.net.URI.create(endpointUrl))
.build();
System.out.println("S3AsyncClient initialized successfully.");
} catch (Exception e) {
System.err.println("Error initializing S3AsyncClient: " + e.getMessage());
throw new RuntimeException("Failed to initialize S3 client", e);
}
}
public CompletableFuture<PutObjectResponse> uploadLocalFileAsync(String bucketName, String key, String objectPath) {
PutObjectRequest objectRequest = PutObjectRequest.builder()
.bucket(bucketName)
.key(key)
.build();
CompletableFuture<PutObjectResponse> uploadFuture = s3AsyncClient.putObject(objectRequest, AsyncRequestBody.fromFile(Paths.get(objectPath)))
.exceptionally(ex -> {
System.err.println("Failed to upload file to S3: " + ex.getMessage());
return null;
});
uploadFuture.thenAccept(response -> {
if (response != null) {
System.out.println("Successfully uploaded the file to S3.");
} else {
System.err.println("Upload failed");
}
});
return uploadFuture;
}
public static void main(String[] args) {
String accessKey = "your-access-key"; // Replace with your access key
String secretKey = "your-secret-access-key"; // Replace with your secret key
String region = "us-east-1"; // Your bucket region
String endpointUrl = "https://s3.wasabisys.com"; // Endpoint URL for Wasabi S3, please change this to your appropriate bucket regin endpointURL
String bucketName = "bucket-name"; // your bucket name
String key = "your-object-prefix"; // The key (name) for the uploaded file in S3
String objectPath = "path-to-the-objectkey/file-name"; // Local file path , for example /Users/user-name/desktop/file-name
UploadObject uploadObject = new UploadObject(accessKey, secretKey, region, endpointUrl);
CompletableFuture<PutObjectResponse> uploadFuture = uploadObject.uploadLocalFileAsync(bucketName, key, objectPath);
try {
uploadFuture.get();
} catch (Exception e) {
System.err.println("Error occurred during the upload: " + e.getMessage());
} finally {
try {
System.out.println("Closing S3 client...");
uploadObject.s3AsyncClient.close();
System.out.println("S3 client closed successfully.");
} catch (Exception e) {
System.err.println("Error closing S3 client: " + e.getMessage());
}
}
}
} Downloading an Object From the Bucket
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.services.s3.S3AsyncClient;
import software.amazon.awssdk.services.s3.model.GetObjectRequest;
import software.amazon.awssdk.services.s3.model.S3Exception;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.core.async.AsyncResponseTransformer;
import java.nio.file.Path;
import java.net.URI;
import java.util.concurrent.CompletableFuture;
public class DownloadObjectAsync {
public static void main(String[] args) {
String region = "us-east-1"; // Replace with your region
String accessKey = "your-access-key"; // Replace with your access key
String secretKey = "your-secret-key"; // Replace with your secret key
String endpointUrl = "https://s3.wasabisys.com"; // Replace with your endpoint URL depending upon the bucket region
String bucketName = "bucket-name"; // Replace with your bucket name
String objectKey = "your-object-prefix"; // Object key in bucket
String downloadPath = "your-local-path"; // Local download path
S3AsyncClient s3AsyncClient = S3AsyncClient.builder()
.region(Region.of(region))
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(URI.create(endpointUrl))
.build();
GetObjectRequest getObjectRequest = GetObjectRequest.builder()
.bucket(bucketName)
.key(objectKey)
.build();
CompletableFuture<Void> future = s3AsyncClient.getObject(getObjectRequest,
AsyncResponseTransformer.toFile(Path.of(downloadPath)))
.thenRun(() -> {
System.out.println("Successfully downloaded object to: " + downloadPath);
})
.exceptionally(ex -> {
if (ex instanceof S3Exception) {
S3Exception s3Ex = (S3Exception) ex;
System.err.println("S3 Error: " + s3Ex.awsErrorDetails().errorMessage());
} else {
System.err.println("Unexpected error: " + ex.getMessage());
}
ex.printStackTrace();
return null;
})
.whenComplete((resp, ex) -> {
System.out.println("Download operation completed.");
if (s3AsyncClient != null) {
s3AsyncClient.close();
System.out.println("S3AsyncClient closed.");
}
});
future.join();
}
} Deleting the Object From the Bucket
import software.amazon.awssdk.services.s3.S3AsyncClient;
import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
import software.amazon.awssdk.services.s3.model.DeleteObjectResponse;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import java.net.URI;
import java.util.concurrent.CompletableFuture;
public class DeleteObjectExample {
public CompletableFuture<Void> deleteObjectFromBucketAsync(S3AsyncClient s3AsyncClient, String bucketName, String key) {
DeleteObjectRequest deleteObjectRequest = DeleteObjectRequest.builder()
.bucket(bucketName)
.key(key)
.build();
CompletableFuture<DeleteObjectResponse> response = s3AsyncClient.deleteObject(deleteObjectRequest);
return response.whenComplete((deleteRes, ex) -> {
if (deleteRes != null) {
System.out.println(key + " was successfully deleted.");
} else {
System.err.println("Error deleting object: " + ex.getMessage());
throw new RuntimeException("An error occurred during the deletion of the object.", ex);
}
}).thenApply(r -> null);
}
public static void main(String[] args) {
String accessKey = "your-access-key"; // Replace with your access key
String secretKey = "your-secret-key"; // Replace with your secret key
String bucketName = "bucket-name"; // Replace with your bucket name
String objectKey = "your-object-prefix";
Region region = Region.of("us-east-1"); // Replace with your region
URI endpoint = URI.create("https://s3.wasabisys.com"); //Enter the endpoint URL associated with your bucket region
S3AsyncClient s3AsyncClient = S3AsyncClient.builder()
.region(region)
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)))
.endpointOverride(endpoint)
.build();
DeleteObjectExample deleteExample = new DeleteObjectExample();
CompletableFuture<Void> deleteFuture = deleteExample.deleteObjectFromBucketAsync(s3AsyncClient, bucketName, objectKey);
deleteFuture.join();
s3AsyncClient.close();
}
}