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63 lines
3.9 KiB
Markdown
63 lines
3.9 KiB
Markdown
# IRS Demo
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This demo brings up three nodes: Bank A, Bank B and a node that simultaneously runs a notary, a network map and an
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interest rates oracle. The two banks agree on an interest rate swap, and then do regular fixings of the deal as the
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time on a simulated clock passes.
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Functionality is split into two parts - CordApp which provides actual distributed ledger backend and Spring Boot
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webapp which provides REST API and web frontend. Application communicate using Corda RPC protocol.
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To run from the command line in Unix:
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1. Run ``./gradlew samples:irs-demo:cordapp:deployNodes`` to install configs and a command line tool under
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``samples/irs-demo/cordapp/build``
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2. Run ``./gradlew samples:irs-demo:web:deployWebapps`` to install configs and tools for running webservers
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3. Move to the ``samples/irs-demo/`` directory
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4. Run ``./cordapp/build/nodes/runnodes`` to open up three new terminals with the three nodes (you may have to install xterm)
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5. On Linux, run ``./web/build/webapps/runwebapps.sh`` to open three more terminals for associated webservers. On macOS,
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use the following command instead: ``osascript ./web/build/webapps/runwebapps.scpt``
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To run from the command line in Windows:
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1. Run ``gradlew.bat samples:irs-demo:cordapp:deployNodes`` to install configs and a command line tool under
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``samples\irs-demo\build``
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2. Run ``gradlew.bat samples:irs-demo:web:deployWebapps`` to install configs and tools for running webservers
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3. Run ``cd samples\irs-demo`` to change current working directory
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4. Run ``cordapp\build\nodes\runnodes.bat`` to open up several 3 terminals for each nodes
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5. Run ``web\build\webapps\runwebapps.bat`` to open up several 3 terminals for each nodes' webservers
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This demo also has a web app. To use this, run nodes and then navigate to http://localhost:10007/ and
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http://localhost:10010/ to see each node's view of the ledger.
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To use the web app, click the "Create Deal" button, fill in the form, then click the "Submit" button. You can then use
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the time controls at the top left of the home page to run the fixings. Click any individual trade in the blotter to
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view it.
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*Note:* The IRS web UI currently has a bug when changing the clock time where it may show no numbers or apply fixings
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inconsistently. The issues will be addressed in a future release. Meanwhile, you can take a look at a simpler oracle
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example here: https://github.com/corda/oracle-example.
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## Running the system test
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The system test utilizes Docker. The amount of RAM required to run the IRS system test is around 2.5GB, so it is important
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to make sure the appropriate system resources are allocated (On MacOS/Windows this may require explicit changes to your Docker configuration).
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### Gradle
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The system test is designed to exercise the entire stack, including Corda nodes and the web frontend. It uses [Docker](https://www.docker.com),
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[docker-compose](https://docs.docker.com/compose/), and
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[PhantomJS](http://phantomjs.org/). Docker and docker-compose need to be installed and configured to on the system path
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(which happens by default). The PhantomJs binary has to be put in a known location and needs execution permissions enabled
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(``chmod a+x phantomjs`` on *nix) and the full path to the binary needs to be available as system property named ``phantomjs.binary.path`` or
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an environment variable named ``PHANTOMJS_BINARY_PATH``.
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To start the test, run ``:samples:irs-demo:systemTest``.
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### Other
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In order to run the test by other means than the Gradle task - two more environment variables are expected -
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``CORDAPP_DOCKER_COMPOSE`` and ``WEB_DOCKER_COMPOSE`` which should specify the full path for the docker-compose files for the IRS cordapp
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and web frontend respectively. Those can be obtained by running the ``:samples:irs-demo:cordapp:prepareDockerNodes`` and
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``web:generateDockerCompose`` Gradle tasks. The ``:samples:irs-demo:systemTest`` Gradle task simply executes these two tasks and sets up the
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correct environment variables.
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