# jsonp: JSON-P Object-based JSON generation and Stream-based JSON consuming

Rafael Benevides

> The `jsonp` quickstart demonstrates how to use the JSON-P API to produce object-based structures and then parse and consume them as stream-based JSON strings.

## What is it?

The `jsonp` quickstart creates a JSON string through object-based JSON generation and then parses and consumes it using stream-based JSON.

It shows how to use the JSON-P API to generate, parse, and consume JSON files.

## System Requirements

The application this project produces is designed to be run on JBoss Enterprise Application Platform Server 7.2 or later.

All you need to build this project is Java 8.0 (Java SDK 1.8) or later and Maven 3.3.1 or later. See Configure Maven to Build and Deploy the Quickstarts to make sure you are configured correctly for testing the quickstarts.

## Use of EAP_HOME

In the following instructions, replace `EAP_HOME` with the actual path to your JBoss EAP installation. The installation path is described in detail here: Use of EAP_HOME and JBOSS_HOME Variables.

## Start the JBoss EAP Standalone Server

1. Open a terminal and navigate to the root of the JBoss EAP directory.

2. Start the JBoss EAP server with the default profile by typing the following command.

       $ EAP_HOME/bin/standalone.sh

   Note | For Windows, use the `EAP_HOME\bin\standalone.bat` script.

## Build and Deploy the Quickstart

1. Make sure you start the JBoss EAP server as described above.

2. Open a terminal and navigate to the root directory of this quickstart.

3. Type the following command to build the artifacts.

       $ mvn clean package wildfly:deploy

This deploys the `jsonp/target/jsonp.war` to the running instance of the server.

You should see a message in the server log indicating that the archive deployed successfully.

## Access the Application

Access the running application in a browser at the following URL: http://localhost:8080/jsonp/

1. You are presented with a simple form that is pre-filled with personal data. You can change those values if you prefer.

2. Click on the Generate JSON String from Personal Data button. The text area below the button presents a JSON string representing the data and values from the completed form.

   Note that the JSON string contains String, number, boolean and array values.

3. Now, click on the Parse JSON String using Stream button. The text area below the button shows the events generated from the parsed JSON string.

## Undeploy the Quickstart

When you are finished testing the quickstart, follow these steps to undeploy the archive.

1. Make sure you start the JBoss EAP server as described above.

2. Open a terminal and navigate to the root directory of this quickstart.

3. Type this command to undeploy the archive:

       $ mvn wildfly:undeploy

## Run the Quickstart in Red Hat JBoss Developer Studio or Eclipse

You can also start the server and deploy the quickstarts or run the Arquillian tests in Red Hat JBoss Developer Studio or from Eclipse using JBoss tools. For general information about how to import a quickstart, add a JBoss EAP server, and build and deploy a quickstart, see Use JBoss Developer Studio or Eclipse to Run the Quickstarts.

## Debug the Application

If you want to debug the source code of any library in the project, run the following command to pull the source into your local repository. The IDE should then detect it.

    $ mvn dependency:sources