GraalVM with MicroProfile

This is the codebase with all the demos for the presentation GraalVM and MicroProfile: A Polyglot Microservices Solution.

Samples Structure

• number-api (a microservice endpoint that generate an id number, with versions for Java, Node and Ruby)
• number-api-client (a Java client to invoke the number-api)
• number-api-invoker (a Ruby and Python client to invoke the number-api)
• calculator-api (a Java and R Polyglot microservice)

Running the Samples

Setup GraalVM

Please refer to the GraalVM Installation Guide. These samples were tested with Graal VM version 22.3.x.

Install Ruby

• Install the ruby language in GraalVM with gu install ruby.
• Rebuild the ruby language in GraalVM with gu rebuild-images ruby.

Install Python

• Install the python language in GraalVM with gu install python.
• Rebuild the python language in GraalVM with gu rebuild-images python.

Build

Run mvn clean install. This will build all the projects.

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NOTE:

When running Node or Ruby commands, make sure that you use the binaries from the bin folder inside GraalVM. You can set a GRAAL_HOME to point to Graal installation folder and then use it to reference the specific binaries easier.

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Samples

Please refer to the specific README file for each sample:

• Number API
• Number API Invoker