ISO8583 Connector Example

Given below is a sample scenario that demonstrates how the ESB ISO8583 Connector sends an ISO8583 message to financial networks using the integration runtime of MWARE ESB.

What you'll build

This example demonstrates how to expose core banking system functionality working with ISO8583 protocol as an API. Here, the integration runtime acts as ISO8583 terminal for the banking network. In this scenario to mock the banking network we used Test mock server.

Given below is a sample API that illustrates how you can configure ISO8583 with the init operation and then use the iso8583.sendMessage operation to send an ISO8583 message for the financial transactions.

To know the further information about the init and iso8583.sendMessage operations please refer this link.

ISO8583 Connector

If you do not want to configure this yourself, you can simply get the project and run it.

Configure the connector in ESB Integration Studio

Follow these steps to set up the Integration Project and the Connector Exporter Project.

  1. Open ESB Integration Studio and create an Integration Project. Creating a new Integration Project

  2. Right-click the project that you created and click on Add or Remove Connector -> Add Connector. You will get directed to the Connector Store.

  3. Search for the specific connector required for your integration scenario and download it to the workspace. Search Connector in the Connector Store

  4. Click Finish, and your Integration Project is ready. The downloaded connector is displayed on the side palette with its operations.

  5. You can drag and drop the operations to the design canvas and build your integration logic. Drag connector operations

  6. Right click on the created Integration Project and select New -> Rest API to create the REST API.

  7. Right click on the created Integration Project and select, -> New -> Rest API to create the REST API.

  8. Specify the API name as SendisoTestAPI and API context as /sendiso. You can go to the source view of the XML configuration file of the API and copy the following configuration (source view).

<?xml version="1.0" encoding="UTF-8"?>
<api context="/sendiso" name="SendisoTestAPI" xmlns="http://ws.apache.org/ns/synapse">
    <resource methods="POST">
        <inSequence>
            <log>
                <property name="status" value="Sending_an_ISO8583_Messsage"/>
            </log>
            <iso8583.init>
                <serverHost>localhost</serverHost>
                <serverPort>5010</serverPort>
            </iso8583.init>
            <iso8583.sendMessage/>
            <respond/>
        </inSequence>
        <outSequence>
            <log/>
            <send/>
        </outSequence>
        <faultSequence/>
    </resource>
</api>
Now we can export the imported connector and the API into a single CAR application. CAR application is the one we are going to deploy to server runtime.

Exporting Integration Logic as a CApp

CApp (Carbon Application) is the deployable artifact on the integration runtime. Let us see how we can export integration logic we developed into a CApp along with the connector.

Creating Connector Exporter Project

To bundle a Connector into a CApp, a Connector Exporter Project is required.

  1. Navigate to File -> New -> Other -> WSO2 -> Extensions -> Project Types -> Connector Exporter Project.

    Add Connector Exporter Project

  2. Enter a name for the Connector Exporter Project.

  3. In the next screen select, Specify the parent from workspace and select the specific Integration Project you created from the dropdown.
    Naming Connector Exporter Project

  4. Now you need to add the Connector to Connector Exporter Project that you just created. Right-click the Connector Exporter Project and select, New -> Add Remove Connectors -> Add Connector -> Add from Workspace -> Connector

  5. Once you are directed to the workspace, it displays all the connectors that exist in the workspace. You can select the relevant connector and click Ok.

    Selecting Connector from Workspace

Creating a Composite Application Project

To export the Integration Project as a CApp, a Composite Application Project needs to be created. Usually, when an Integration project is created, this project can be created as part of that project by Integration Studio. If not, you can specifically create it by navigating to File -> New -> Other -> WSO2 -> Distribution -> Composite Application Project.

Exporting the Composite Application Project

  1. Right-click the Composite Application Project and click Export Composite Application Project.

    Export as a Carbon Application

  2. Select an Export Destination where you want to save the .car file.

  3. In the next Create a deployable CAR file screen, select both the created Integration Project and the Connector Exporter Project to save and click Finish. The CApp is created at the specified location provided at the previous step.

    Create a deployable CAR file

Get the project

You can download the ZIP file and extract the contents to get the project code.

Download ZIP

Deployment

Follow these steps to deploy the exported CApp in the integration runtime.

Deploying on Micro Integrator

You can copy the composite application to the <PRODUCT-HOME>/repository/deployment/server/carbonapps folder and start the server. Micro Integrator will be started and the composite application will be deployed.

You can further refer the application deployed through the CLI tool. See the instructions on managing integrations from the CLI.

Click here for instructions on deploying on ESB Enterprise Integrator 6

  1. You can copy the composite application to the <PRODUCT-HOME>/repository/deployment/server/carbonapps folder and start the server.

  2. ESB EI server starts and you can login to the Management Console https://localhost:9443/carbon/ URL. Provide login credentials. The default credentials will be admin/admin.

  3. You can see that the API is deployed under the API section.

Testing

Invoke the API as shown below using the curl command. Curl Application can be downloaded from here.

       curl -v POST -d 
       '<ISOMessage>
            <header>AAAAaw==</header>
            <data>
             <field id="104">000001161204171926FABCDE123ABD06414243</field>
             <field id="109">000termid1210Community106A5DFGR1112341234234</field>
             <field id="125">1048468112122012340000100000001107221800</field>
             <field id="127">01581200F230040102B000000000000004000000</field>
            </data>
        </ISOMessage>' "http://localhost:8290/sendiso" -H "Content-Type:application/xml"
Expected Response:

       <ISOMessage>
       <header>MDIxMA==</header>
       <data>
       <field id="0">8000</field>
       <field id="23">000</field>
       </data>
       </ISOMessage>
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