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add support for Emerald (from Oasis) #1236

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add support for Emerald (from Oasis) #1236

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626bee8
add support for Emerald (from Oasis)
hiram-abif May 8, 2022
de0b906
add note to changelog regarding the addition of Emerald to chains
hiram-abif May 8, 2022
e3e05ac
Merge branch 'master' into master
hiram-abif May 12, 2022
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@

### Unreleased

- Add support for Emerald Mainnet and Testnet chains (the Oasis Paratimes)
- Removed Cronos mainnet beta from `is_legacy` [1246](https://github.com/gakonst/ethers-rs/pull/1246)
- Fix RLP decoding of `from` field for `Eip1559TransactionRequest` and
`Eip2930TransactionRequest`, remove `Eip1559TransactionRequest` `sighash`
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6 changes: 6 additions & 0 deletions ethers-core/src/types/chain.rs
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Expand Up @@ -39,6 +39,8 @@ pub enum Chain {
ArbitrumTestnet = 421611,
Cronos = 25,
CronosTestnet = 338,
Emerald = 42262,
EmeraldTestnet = 42261,
}

impl fmt::Display for Chain {
Expand Down Expand Up @@ -69,6 +71,8 @@ impl fmt::Display for Chain {
Chain::ArbitrumTestnet => "arbitrum-testnet",
Chain::Cronos => "cronos",
Chain::CronosTestnet => "cronos-testnet",
Chain::Emerald => "emerald",
Chain::EmeraldTestnet => "emerald-testnet",
};

write!(formatter, "{}", chain)
Expand Down Expand Up @@ -123,6 +127,8 @@ impl TryFrom<u64> for Chain {
421611 => Chain::ArbitrumTestnet,
25 => Chain::Cronos,
338 => Chain::CronosTestnet,
42262 => Chain::Emerald,
42261 => Chain::EmeraldTestnet,
_ => return Err(ParseChainError(chain.to_string())),
})
}
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8 changes: 8 additions & 0 deletions ethers-etherscan/src/lib.rs
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Expand Up @@ -101,6 +101,7 @@ impl Client {
Chain::Moonbeam | Chain::MoonbeamDev | Chain::Moonriver => {
std::env::var("MOONSCAN_API_KEY")?
}
Chain::Emerald | Chain::EmeraldTestnet => String::default(),
Chain::Dev => return Err(EtherscanError::LocalNetworksNotSupported),
};
Self::new(chain, api_key)
Expand Down Expand Up @@ -264,6 +265,13 @@ impl ClientBuilder {
Chain::Moonriver => {
urls("https://api-moonriver.moonscan.io/api", "https://moonriver.moonscan.io")
}
Chain::Emerald => {
urls("https://explorer.emerald.oasis.dev/api", "https://explorer.emerald.oasis.dev")
}
Chain::EmeraldTestnet => urls(
"https://testnet.explorer.emerald.oasis.dev/api",
"https://testnet.explorer.emerald.oasis.dev",
),
Comment on lines +268 to +274
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is this compatible with etherscan API?

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@mattsse This project is using the fork for a small POC: https://gunix.codeberg.page/sycamore-metamask-example/
However that's only getting the balance and nothing else.

The explorer is blockscout. According to the docs, it supports ETH RPC

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Yeah, we're using our own fork of the blockscout: https://github.com/oasisprotocol/emerald-blockscout

Let us know, if you require any assistance.

Chain::Dev => return Err(EtherscanError::LocalNetworksNotSupported),
chain => return Err(EtherscanError::ChainNotSupported(chain)),
};
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