feat(gas-tracker): add gas tracker page with L2 support #175
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- Add GasPrices type and eth_feeHistory RPC method to NetworkAdapter - Create dedicated gas tracker page with Low/Avg/High tiers - Show transaction cost estimates for common tx types - Add gas price indicator to navbar with fuel pump icon - Update dashboard to show gas tiers with link to gas tracker - Support L2 networks (Optimism, Base) with Mwei/Kwei units - Extract formatGasPrice utility to reduce code duplication
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MatiasOS
approved these changes
Jan 21, 2026
Add role, tabIndex, and keyboard event handler for accessibility compliance.
8 tasks
Keep both extractData import for gas prices and AddressTransactionSearch for address transaction lookup functionality.
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Description
Add a Gas Tracker feature that displays real-time gas price tiers (Low/Average/High) and transaction cost estimates. Supports L2 networks like Optimism and Base that have very low gas prices by automatically switching to smaller units (Mwei/Kwei).
Related Issue
Closes #136
Type of Change
Changes Made
GasPricestype tosrc/types/index.tsgetGasPrices()method toNetworkAdapterusingeth_feeHistoryRPCgetClient()method toNetworkAdapterfor accessing the RPC clientgetClient()in all adapters (EVM, Optimism, Arbitrum, Base, Polygon, BNB)src/components/pages/gastracker/index.tsx)formatGasPriceutility to handle L2 low gas prices with appropriate units/:networkId/gastrackerin App.tsxScreenshots (if applicable)
N/A - UI changes can be tested locally
Checklist
npm run format:fixandnpm run lint:fixnpm run typecheckwith no errorsnpm run test:runAdditional Notes
eth_feeHistoryfor the last 20 blocks with 25th, 50th, and 75th percentiles