This is a example java application that sends an order to the IG FIX DMA Trading API.
The application can be run by a counter party who has been allocated a FIX DMA session. The FIX Sender Comp ID will require updating in quickfixj-client.cfg as well as comp id, sender sub id and IG account in NewOrderSender.java.
This example is written as a spring boot application. The example can be run on command line by using the spring boot maven plugin e.g.
mvn spring-boot:run
Other ways of running a spring boot application can be found here https://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-running-your-application.html
This example application is an initiator for the FIX connection. Once the session is logged on to IG's FIX API, it immediately sends a NewOrderSingle message. It is listening for response messages and once a ExecutionReport is received it will log the incoming message and log "Received execution report for client order: XYZ order status: X"