This repo contains multiple components which together with a Hyperledger Sawtooth validator, will comprise the "blockchain" components of the NEXT Identity Platform project. The components include:

• a server which provides a REST API for querying blockchain data
• a transaction processor which handles RBAC-specific transaction logic
• a ledger sync which writes blockchain state changes to a local database

The easiest way to run these components is with Docker. To start these components, first install Docker for your platform and clone this repo.

Next, create a server/config.py file based off the example at server/config.py.example. Pay special attention to the secret keys at the bottom of the example file. While other settings have defaults and can be omitted, these keys have no defaults and must be provided to run the server. The examples listed are insecure, and should be replaced before deployment.

Once there is a config file in place, you can simply run:

docker-compose up

This will build all components, start them in individual Docker containers, and download and run the necessary Sawtooth components. Once complete, the REST API will be available at http://localhost:8000.

Later, if the repo is updated, the local components will need to be rebuilt, which can be accomplished using the --build flag:

docker-compose up --build

Once all the docker containers are running without error, see ui/readme.md for configuring / running the UI server.

Docker containers are also available for developers, and are marked with a -dev tag in their filename. There are a few differences between how these containers work compared to the defaults:

• they do not need to be rebuilt when local files change
• Protobuf files will need to be built locally
• some dependencies may need to be installed locally*
• a Sawtooth shell container is included for testing
• Sawtooth's blockchain REST API will be available at http://localhost:8080
• Rethink's database admin panel will be available at http://localhost:9090

To start the dev containers, from the root project directory run:

bin/build -p
docker-compose -f docker-compose-dev.yaml up

* Dependencies that may need to be locally installed include Sawtooth dependencies like thesawtooth_sdk, as well as some pip3 modules.

Tests can be run using the run_docker_test script, with the desired docker-compose file as an argument. For example:

bin/run_docker_test integration_tests/blockchain/docker-compose.yaml
bin/run_docker_test integration_tests/api/docker-compose.yaml

Hyperledger Sawtooth NEXT Identity Platform software is licensed under the Apache License Version 2.0 software license.