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add eth_chainId method #17617

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merged 3 commits into from
Sep 29, 2018
Merged

add eth_chainId method #17617

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51dd117
eth,internal: add eth_chainId method to PublicEthereumApi JSONRPC
whilei Aug 18, 2017
df4f7c8
eth: improve getting chainID with existence check and hexutil
whilei Sep 6, 2017
a68236f
eth: small fix to make it work
hackmod Sep 9, 2018
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9 changes: 9 additions & 0 deletions eth/api.go
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,15 @@ func (api *PublicEthereumAPI) Hashrate() hexutil.Uint64 {
return hexutil.Uint64(api.e.Miner().HashRate())
}

// ChainId is the EIP-155 replay-protection chain id for the current ethereum chain config.
func (api *PublicEthereumAPI) ChainId() hexutil.Uint64 {
chainID := new(big.Int)
if config := api.e.chainConfig; config.IsEIP155(api.e.blockchain.CurrentBlock().Number()) {
chainID = config.ChainID
}
return (hexutil.Uint64)(chainID.Uint64())
}

// PublicMinerAPI provides an API to control the miner.
// It offers only methods that operate on data that pose no security risk when it is publicly accessible.
type PublicMinerAPI struct {
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5 changes: 5 additions & 0 deletions internal/web3ext/web3ext.go
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Expand Up @@ -433,6 +433,11 @@ const Eth_JS = `
web3._extend({
property: 'eth',
methods: [
new web3._extend.Method({
name: 'chainId',
call: 'eth_chainId',
params: 0
}),
new web3._extend.Method({
name: 'sign',
call: 'eth_sign',
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