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[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`).

Package Exports

  • eth-json-rpc-filters
  • eth-json-rpc-filters/index.js
  • eth-json-rpc-filters/subscriptionManager
  • eth-json-rpc-filters/subscriptionManager.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (eth-json-rpc-filters) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

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()

Running Tests

yarn test

Changelog

2.0
  • expect EthBlockTracker@4