prevent connection lost on ethers provider #5
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ethersjs does not have reconnecting feature on providers. so, when provider connection lost then workers of coordinator fall in deadlock.
Using
web3-provider-wsfor ethersjs provider is hacky way, but it is simpler than listeningcloseevent and adding more action in coordinator.because we have been testing coordinator using a provider from web3js and it is quite reliable so far on main repository.
At some point, we should have to make stable web3 provider base on ethersjs for zkopru coordinator.