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fix: bump etherscan api to v2 #398

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fix: bump etherscan api to v2 #398

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f64be16
fix: bump etherscan api to v2
imqdee Nov 13, 2025
855cad5
chore: improve etherscan v2 chainid and error handling
sanbir Feb 15, 2026
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15 changes: 10 additions & 5 deletions util/EtherscanApi.ts
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Original file line number Diff line number Diff line change
@@ -1,18 +1,23 @@
const ETHERSCAN_URL = 'https://api.etherscan.io/api?'
const ETHERSCAN_URL = 'https://api.etherscan.io/v2/api'
const ETHERSCAN_CHAIN_ID = process.env.ETHERSCAN_CHAIN_ID || '1'

export async function etherscanRequest(
module: string,
action: string,
params: object,
) {
const query: any = {
apikey: process.env.APIKEY_ETHERSCAN,
const query: Record<string, string> = {
chainid: ETHERSCAN_CHAIN_ID,
apikey: process.env.APIKEY_ETHERSCAN || '',
module: module,
action: action,
...params,
}

const url = ETHERSCAN_URL + new URLSearchParams(query)
Object.entries(params).forEach(([key, value]) => {
query[key] = String(value)
})

const url = `${ETHERSCAN_URL}?${new URLSearchParams(query)}`
return fetch(url)
}

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4 changes: 3 additions & 1 deletion util/EtherscanParser.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,9 @@ export function etherscanParse(
response: EtherscanResponse,
): EtherscanContractResponse {
if (response.message !== 'OK') {
throw 'etherscan response is not OK'
const reason =
typeof response.result === 'string' ? response.result : response.message
throw `etherscan response is not OK: ${reason}`
}

if (!response.result || response.result.length == 0) {
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