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README.md

eth-json-rpc-filters

json-rpc-engine middleware implementing ethereum filter methods. Backed by an eth-block-tracker and web3 provider interface (web3.currentProvider).

supported rpc methods

eth_newFilter
eth_newBlockFilter
eth_newPendingTransactionFilter
eth_uninstallFilter
eth_getFilterChanges
eth_getFilterLogs

usage

basic usage:

const filterMiddleware = createFilterMiddleware({ blockTracker, provider })
engine.push(filterMiddleware)

cleanup:

// remove blockTracker handler to free middleware for garbage collection
filterMiddleware.destroy()

Changelog

2.0

expect EthBlockTracker@4