eth-json-rpc-filters

[json-rpc-engine](https://github.com/MetaMask/json-rpc-engine) middleware implementing ethereum filter methods. Backed by an [eth-block-tracker](https://github.com/MetaMask/eth-block-tracker) and web3 provider interface (`web3.currentProvider`).

4.2.2
Source
npm

Version published: 4 years ago

Weekly downloads: 274K; decreased by-2.45%

Maintainers: 6

Weekly downloads

Created: 7 years ago

Source

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

[4.2.2] - 2021-02-04

Changed

Replace await-semaphore with async-mutex (#33)
Move pify to production dependencies and update to v5 (#39 and #40)
Cleanup manifest metadata (#43 and #42)
Update json-rpc-engine from v5 to v6 (#35)
Update to @metamask/safe-event-emitter v2 (#37)
Remove lodash.flatmap dependency (#36)

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Package last updated on 05 Feb 2021

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