feat(chains): add ethereum monitoring integration#193
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mijinummi merged 2 commits intoJun 22, 2026
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- Implement EthereumChainMonitor implementing IChainMonitor - Poll Ethereum JSON-RPC for new blocks and normalize transactions - Support transfer, contract_call, and contract_deploy event types - Register monitor in ChainsModule behind ETHEREUM_RPC_URL env var - Add comprehensive test suite for normalization, polling, and health Closes MD-Creative-Production#136
- Replace jest.clearAllMocks() with targeted mockReset() calls to properly clear mockResolvedValueOnce queues between tests - Simplify ethers jest.mock to avoid recursive ethers.ethers reference - Use eslint-disable-next-line instead of tslint directive
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Summary
Extends Sentinel monitoring capabilities to Ethereum by implementing an
EthereumChainMonitorthat polls the Ethereum JSON-RPC for new blocks, extracts transactions, and normalizes them into the sharedNormalizedChainEventformat.Changes
New Files
apps/backend/src/modules/chains/monitors/ethereum.chain-monitor.ts— Ethereum chain monitor implementingIChainMonitorJsonRpcProviderETHEREUM_POLL_INTERVAL_MS)contract_deploy>contract_call>transfergetBlockNumber()apps/backend/src/modules/chains/monitors/ethereum.chain-monitor.spec.ts— 12 tests covering:Modified Files
apps/backend/src/modules/chains/chains.module.ts— RegistersEthereumChainMonitorin theCHAIN_MONITORSprovider array, gated behind theETHEREUM_RPC_URLenvironment variableEnvironment Variables
ETHEREUM_RPC_URLhttp://localhost:8545ETHEREUM_POLL_INTERVAL_MS15000Verification
Related
Closes #136