Testing APIs manually

That concludes the implementation of our microservices. Let's try them out by performing the following steps:

1. Build and start them up as background processes.
2. Use curl to call the composite API.
3. Stop them.

First, build and start-up each microservice as a background process, as follows:

cd $BOOK_HOME/Chapter03/2-basic-rest-services/

./gradlew build

Once the build completes, we can launch our microservices as background processes to the Terminal process with the following code:

java -jar microservices/product-composite-service/build/libs/*.jar &
java -jar microservices/product-service/build/libs/*.jar &
java -jar microservices/recommendation-service/build/libs/*.jar &
java -jar microservices/review-service/build/libs/*.jar &

A lot of log messages will be written to the Terminal, but after a few seconds, things will calm down and...