Reactive AWS SDK v2

This project provides a VertxNioAsyncHttpClient and a VertxExecutor so that you can use AWS SDK v2 (async, non-blocking) in a Vert.x application.

Javadoc

The Javadoc.

Install

Using maven:

<dependency>
    <groupId>io.reactiverse</groupId>
    <artifactId>aws-sdk</artifactId>
    <version>1.0.0</version>
</dependency>

Using Gradle:

implementation("io.reactiverse:aws-sdk:1.0.0")

How-to

Given context is a Vert.x Context object (either obtained by vertx.getOrCreateContext() or from a AbstractVerticle.init method), you can use VertxSdkClient::withVertx utility method to create a client:

DynamoDbAsyncClient dynamo = VertxSdkClient.withVertx( // use the provided utility method
    DynamoDbAsyncClient.builder() // with the traditional AwsAsyncClientBuilder you're used to
        .region(Region.EU_WEST_1) // that you'll confiugure as usual
    , context) // and provide a Vert.x context (the one from within your Verticle for example)
    .build(); // then build it => you'll have a Vert.x compatible AwsAsyncClient

Under the hood, it’s gonna do the following:

return builder
        .httpClient(new VertxNioAsyncHttpClient(context)) // uses Vert.x's HttpClient to make call to AWS services
        .asyncConfiguration(conf -> // tells AWS to execute response callbacks in a Vert.x context
                conf.advancedOption(SdkAdvancedAsyncClientOption.FUTURE_COMPLETION_EXECUTOR, new VertxExecutor(context))
        );

• VertxNioAsyncHttpClient takes care of making HTTP calls through Vert.x’s http client
• VertxExecutor provides Vert.x Context to CompletableFutures. (see: Vert.x contract regarding contexts and callbacks)

You can then use your DynamoDbAsyncClient as you’re used to with AWS SDK. You can have a look at integration tests to get many examples.