IBM MQ

1. IBM MQ connection
2. Policy project

Create the policy project by following these steps:

An example message flow looks like this:

MQInput node → MQGet node → MQOutput node

The input JSON looks like this:

{

    "Name": "John",

    "Age": 30

}

The Compute node code looks like this:

CREATE COMPUTE MODULE MQMsgFlow_Compute

CREATE FUNCTION Main() RETURNS BOOLEAN

BEGIN

    -- Declare variables

    DECLARE inputJson CHARACTER;

    DECLARE name CHARACTER;

    DECLARE age INTEGER;

    -- Initialize the output tree

    SET OutputRoot = NULL;

    -- Copy the MQMD header from InputRoot to OutputRoot

    SET OutputRoot.MQMD = InputRoot.MQMD;

    SET OutputRoot.MQMD.Format = 'MQSTR';

    -- Parse the JSON data from InputRoot

    SET inputJson = CAST(InputRoot.JSON.Data AS CHARACTER);


    -- Extract fields from JSON

    SET name = InputRoot.JSON.Data.Name;

    SET age = InputRoot.JSON.Data.Age;

    -- Build the XML structure in the XMLNSC domain

    SET OutputRoot.XMLNSC.Message.Person.Name = name;

    SET OutputRoot.XMLNSC.Message.Person.Age = age;

    RETURN TRUE;

END;

END MODULE;

The output XML looks like this:

<Message>

    <Person>

        <Name>John</Name>

        <Age>30</Age>

    </Person>

</Message>

IBM MQ Explorer result:

In IBM App Connect Professional, you can directly configure the Payload Data Type and Message Type properties under checklist → configure → message details. However, in IBM App Connect Enterprise, these properties can be set by using a Compute node.

The Payload data type can be configured by editing the following items:

Binary - set MQMD.Format to ' ' (empty or 8 spaces)

String - set MQMD.Format to MQSTR;

Message Type:

Datagram - MQMD.MsgType = MQMT_DATAGRAM;