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This is a simple "TODO" example using Vase. An demand-driven API is also integrated.

Getting Started

  1. Start the application: lein run
  2. Go to localhost:8080 to see: Hello World!
  3. You can see all available API endpoints and the current list of TODOs. You can optionally filter that list too.
  4. Read your app's source code at src/omnext_todo/service.clj. Explore the docs of functions that define routes and responses.
  5. See your Vase API Specification at resources/omnext-todo_service.edn.
  6. Run your app's tests with lein test. Read the tests at test/omnext_todo/service_test.clj.

POSTing data to the API

You can POST new TODOs with curl:

curl -H "Content-Type: application/json" -X POST -d '{"payload": [{"todo/title": "Write a test for TODO example"}]}' http://localhost:8080/api/omnext-todo/main/todos

You can also see the spec/validation response if you try to transact and incomplete TODO

curl -H "Content-Type: application/json" -X POST -d '{"payload": [{}]}' http://localhost:8080/api/omnext-todo/main/todos


To configure logging see config/logback.xml. By default, the app logs to stdout and logs/. To learn more about configuring Logback, read its documentation.

Developing your service

  1. Start a new REPL: lein repl
  2. Start your service in dev-mode: (def dev-serv (run-dev))
  3. Connect your editor to the running REPL session. Re-evaluated code will be seen immediately in the service.
  4. All changes to your Vase Service Descriptor will be loaded - no re-evaluation needed.

Docker container support

  1. Build an uberjar of your service: lein uberjar
  2. Build a Docker image: sudo docker build -t omnext-todo .
  3. Run your Docker image: docker run -p 8080:8080 omnext-todo

OSv unikernel support with Capstan

  1. Build and run your image: capstan run -f "8080:8080"

Once the image it built, it's cached. To delete the image and build a new one:

  1. capstan rmi omnext-todo; capstan build


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