java

Hydrogen Web Components - Java SDK

Installing this SDK in your project will give you the following functionality:

• OAuth 2.0 Authorization of Web Components and WebViews
• Generate App Tokens to authenticate Web Components and WebViews
• Retrieve Nucleus Client and Card data used in Web Component and WebView embed codes as data attributes

For more information, please visit our documentation https://www.hydrogenplatform.com/docs/web-component/v1

Requirements

1. Java 1.7+
2. Maven/Gradle

Installation

To install the API client library to your local Maven repository, simply execute:

mvn clean install

Add this dependency to your project's POM:

<dependency>
  <groupId>com.hydrogenplatform</groupId>
  <artifactId>app-token-api</artifactId>
  <version>1.0.0</version>
  <scope>compile</scope>
</dependency>

Getting Started

Please first follow the installation instructions. Then make sure you use the proper base URL.

Base URL

Follow steps to verify the base URL path:

1. Go to ApiClient file located under src folder.
2. Search for basePath and change/verify the URL according to the environment.

Base URL https://api.hydrogenplatform.com

Parameters

Parameter	Description
setAttributes()	This parameter is used to set the Attributes
setAppNames()	This parameter is used to set the list of apps you are retrieving a token for, such as card_balance or card_issuance
setAuthType()	This parameter is used to set the OAuth type. Valid values may be AuthType.CLIENT (client_credentials grant), AuthType.PASSWORD (password grant), AuthType.CLIENT_TOKEN (custom client-token grant)
setBasePath()	This parameter is used to set the base path of the environment. Valid values may be Environment.PRODUCTION (https://api.hydrogenplatform.com)
setAccessToken()	This parameter is used to pass in the JWT Access Token if you authenticate outside of the SDK
setClientToken()	This parameter is used to pass in the JWT Access Token for Custom Client Token apps if you authenticate outside of the SDK
setClientId()	This parameter is used to set your OAuth client_id to authenticate if you don't pass in the JWT Access Token
setClientSecret()	This Parameter is used to set your OAuth client_secret to authenticate if you don't pass in the JWT Access Token
setUsername	This parameter is used to pass in the Nucleus Client username of the user to authenticate password grant apps
setPassword	This parameter is used to pass in the Nucleus Client password of the user to authenticate password grant apps
setIsEmbed()	This parameter is used to return an HTML embed code in the response, including all passed data attributes. Valid values are true or false

Sample Code

Now you are ready to execute the following Java code:

public class AppTokenApiExample {

    public static void main(String[] args) {
        AppTokenConfig appTokenConfig = new AppTokenConfig()
            .setClientId("xxxx")
            .setClientSecret("xxxx")
            .setUsername("xxxx")
            .setPassword("xxxx")
            .setAuthType(AuthType.PASSWORD)
            .setAppNames(asList(new AppConfig().setAppName("card_issuance"), new AppConfig().setAppName("card_balance")))
            .setBasePath(Environment.PRODUCTION);
              .setAttributes(asList(
                  new TagAttributes().setName("card-id").setValue("xxxxx")
                  ,new TagAttributes().setName("client-id").setValue("xxxxx"))
              )
              .setIsEmbed(true);
      AutoGenerateAppTokenApi appTokenApi = new AutoGenerateAppTokenApi(appTokenConfig);
      List<Map<String, String>> appTokenUsingGET = appTokenApi.getAppTokenUsingGET();
      System.out.println(appTokenUsingGET);
    }
}

Author

The Hydrogen Technology Corporation

https://www.hydrogenplatform.com