Archiver
Archiver is a service which is used to fetch data on-chain data and present them in a nice-to-consume form.
The on-chain data specifically are the following events:
L2BlockProcessed event emitted on Rollup contract,
ContractDeployment event emitted on ContractDeploymentEmitter contract,
MessageAdded event emitted on Inbox contract,
The interfaces defining how the data can be consumed from the archiver are L2BlockSource, L2LogsSource and ContractDataSource.
Usage
To install dependencies and build the package run yarn install followed by yarn build.
To run test execute yarn test.
To start the service export ETHEREUM_HOST (defaults to http://127.0.0.1:8545/), ARCHIVER_POLLING_INTERVAL (defaults to 1000 ms), ROLLUP_CONTRACT_ADDRESS, INBOX_CONTRACT_ADDRESS, CONTRACT_DEPLOYMENT_EMITTER_ADDRESS environmental variables and start the service with yarn start.