mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-27 21:00:13 +01:00
66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
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const ProviderEngine = require('web3-provider-engine/index.js')
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const DefaultFixture = require('web3-provider-engine/subproviders/default-fixture.js')
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const NonceTrackerSubprovider = require('web3-provider-engine/subproviders/nonce-tracker.js')
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const CacheSubprovider = require('web3-provider-engine/subproviders/cache.js')
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const FilterSubprovider = require('web3-provider-engine/subproviders/filters.js')
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const HookedWalletSubprovider = require('web3-provider-engine/subproviders/hooked-wallet.js')
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const RpcSubprovider = require('web3-provider-engine/subproviders/rpc.js')
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const EtherscanSubprovider = require('web3-provider-engine/subproviders/etherscan.js')
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module.exports = ZeroClientProvider
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function ZeroClientProvider(opts){
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opts = opts || {}
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var engine = new ProviderEngine()
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// static
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var staticSubprovider = new DefaultFixture()
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engine.addProvider(staticSubprovider)
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// nonce tracker
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engine.addProvider(new NonceTrackerSubprovider())
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// cache layer
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var cacheSubprovider = new CacheSubprovider()
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engine.addProvider(cacheSubprovider)
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// filters
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var filterSubprovider = new FilterSubprovider()
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engine.addProvider(filterSubprovider)
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// id mgmt
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var idmgmtSubprovider = new HookedWalletSubprovider({
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getAccounts: opts.getAccounts,
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approveTransaction: opts.approveTransaction,
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signTransaction: opts.signTransaction,
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})
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engine.addProvider(idmgmtSubprovider)
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// data source
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var dataProvider
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if (!opts.etherscan) {
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dataProvider = new RpcSubprovider({
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rpcUrl: opts.rpcUrl || 'https://testrpc.metamask.io/',
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})
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} else {
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dataProvider = new EtherscanSubprovider()
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}
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engine.addProvider(dataProvider)
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// // log new blocks
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// engine.on('block', function(block){
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// console.log('================================')
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// console.log('BLOCK CHANGED:', '#'+block.number.toString('hex'), '0x'+block.hash.toString('hex'))
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// console.log('================================')
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// })
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// start polling
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engine.start()
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return engine
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}
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