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attached: filter EVM chains with invalid native currency symbol #412

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attached: filter EVM chains with invalid native currency symbol #412

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9 changes: 8 additions & 1 deletion embed/oko_attached/src/window_msgs/get_eth_chain_info.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,14 @@ export async function handleGetEthChain(
const chainId = message.payload.chain_id;

const allChains = await getAllChainsCached();
const chainInfos = filterEthChains(allChains);
// SDK's OkoEIP1193Provider rejects the entire provider construction if any
// chain's native currency symbol is outside 1-8 chars. Drop registry
// entries that would trip that validator so a single bad chain doesn't
// block the whole EVM provider.
const chainInfos = filterEthChains(allChains).filter((c) => {
const symbol = c.currencies[0]?.coinDenom;
return symbol !== undefined && symbol.length >= 1 && symbol.length <= 8;
});

let resultChains: ChainInfo[] = [];

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