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metamask-extension/app/scripts/controllers/network/createJsonRpcClient.js
Whymarrh Whitby 92971d3c87
Migrate codebase to use ESM (#7730)
* Update eslint-plugin-import version

* Convert JS files to use ESM

* Update ESLint rules to check imports

* Fix test:unit:global command env

* Cleanup mock-dev script
2020-01-09 00:04:58 -03:30

26 lines
1.2 KiB
JavaScript

import mergeMiddleware from 'json-rpc-engine/src/mergeMiddleware'
import createFetchMiddleware from 'eth-json-rpc-middleware/fetch'
import createBlockRefRewriteMiddleware from 'eth-json-rpc-middleware/block-ref-rewrite'
import createBlockCacheMiddleware from 'eth-json-rpc-middleware/block-cache'
import createInflightMiddleware from 'eth-json-rpc-middleware/inflight-cache'
import createBlockTrackerInspectorMiddleware from 'eth-json-rpc-middleware/block-tracker-inspector'
import providerFromMiddleware from 'eth-json-rpc-middleware/providerFromMiddleware'
import BlockTracker from 'eth-block-tracker'
export default createJsonRpcClient
function createJsonRpcClient ({ rpcUrl }) {
const fetchMiddleware = createFetchMiddleware({ rpcUrl })
const blockProvider = providerFromMiddleware(fetchMiddleware)
const blockTracker = new BlockTracker({ provider: blockProvider })
const networkMiddleware = mergeMiddleware([
createBlockRefRewriteMiddleware({ blockTracker }),
createBlockCacheMiddleware({ blockTracker }),
createInflightMiddleware(),
createBlockTrackerInspectorMiddleware({ blockTracker }),
fetchMiddleware,
])
return { networkMiddleware, blockTracker }
}