Endpoints

In order to actually serve a configured HttpMaid instance, you have to start an endpoint. The endpoint you choose depends on your specific deployment requirements.

Pure Java

The most lightweight endpoint is called PureJavaEndpoint. It relies entirely on native Java and does not need any dependencies other than HttpMaid core.

PureJavaEndpoint.pureJavaEndpointFor(httpMaid).listeningOnThePort(port);

It does not support websockets.

Jetty

Another option is the Jetty endpoint. To use it, add this dependency to your project:

<dependency>
    <groupId>de.quantummaid.httpmaid.integrations</groupId>
    <artifactId>httpmaid-jetty</artifactId>
    <version>0.9.132</version>
</dependency>

It can be used like this:

JettyEndpoint.jettyEndpointFor(httpMaid).listeningOnThePort(port);

If you need support for websockets, you this dependency instead:

<dependency>
    <groupId>de.quantummaid.httpmaid.integrations</groupId>
    <artifactId>httpmaid-jetty-websockets</artifactId>
    <version>0.9.132</version>
</dependency>

You can use it like this:

JettyWebsocketEndpoint.jettyWebsocketEndpoint(httpMaid, port);

AWS Lambda with API Gateway

HttpMaid can be deployed as a serverless AWS Lambda function and handle AWS API Gateway HTTP events. In order to do this, you need to add this dependency to your project:

<dependency>
    <groupId>de.quantummaid.httpmaid.integrations</groupId>
    <artifactId>httpmaid-awslambda</artifactId>
    <version>0.9.132</version>
</dependency>

Afterwards, you can create a class to delegate AWS Lambda events to HttpMaid:

import de.quantummaid.httpmaid.HttpMaid;
import de.quantummaid.httpmaid.awslambda.AwsLambdaEndpoint;

import java.util.Map;

import static de.quantummaid.httpmaid.HttpMaid.anHttpMaid;
import static de.quantummaid.httpmaid.awslambda.AwsLambdaEndpoint.awsLambdaEndpointFor;

public final class MyLambdaFunction {
    private static final HttpMaid HTTP_MAID = anHttpMaid()
            // ...
            .build();
    private static final AwsLambdaEndpoint ENDPOINT = awsLambdaEndpointFor(HTTP_MAID);

    public Map<String, Object> handleRequest(final Map<String, Object> event) {
        return ENDPOINT.delegate(event);
    }
}

You can now package your application as a JAR file, upload it to AWS Lambda and configure the MyLambdaFunction as an entry point. When you have done this, you can create an API in AWS API Gateway and integrate it with this Lambda function. HttpMaid automatically supports all possible types of API Gateway. If you want to learn more, please check out our AWS Lambda tutorial with in-depth explanations and step-by-step instructions for building and deployment.

JEE / Servlet

If you intend to host your application using standard Java servlet technology, you can go with the servlet endpoint. Just add the following dependency:

<dependency>
    <groupId>de.quantummaid.httpmaid.integrations</groupId>
    <artifactId>httpmaid-servlet</artifactId>
    <version>0.9.132</version>
</dependency>

Using it depends on how your servlet is loaded. If you want to provide the servlet instance programmatically to your servlet engine, you can create a new servlet like this:

final HttpServlet servlet = ServletEndpoint.servletEndpointFor(httpMaid);

If you instead need to provide your servlet engine with a class that it can construct by itself, you can extend the ServletEndpoint and provide the HttpMaid instance via the super constructor:

import de.quantummaid.httpmaid.HttpMaid;
import de.quantummaid.httpmaid.servlet.ServletEndpoint;

import static de.quantummaid.httpmaid.HttpMaid.anHttpMaid;

public class MyServletEndpoint extends ServletEndpoint {
    private static final HttpMaid HTTP_MAID = anHttpMaid()
            // ...
            .build();

    public MyServletEndpoint() {
        super(HTTP_MAID);
    }
}

CORS

HttpMaid Client