Use query instead of body for Etherscan API (#954)

Co-authored-by: mikkel-pearl <[email protected]> Co-authored-by: Eric Lau <[email protected]>
OpenZeppelin · Jan 9, 2024 · 7b4698a · 7b4698a
1 parent c9f518d
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diff --git a/packages/plugin-hardhat/CHANGELOG.md b/packages/plugin-hardhat/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- Support proxy verification on Snowtrace. ([#954](https://github.com/OpenZeppelin/openzeppelin-upgrades/pull/954))
+
 ## 3.0.1 (2023-12-20)
 
 - Update dependency on undici. ([#948](https://github.com/OpenZeppelin/openzeppelin-upgrades/pull/948))

diff --git a/packages/plugin-hardhat/src/utils/etherscan-api.ts b/packages/plugin-hardhat/src/utils/etherscan-api.ts
@@ -14,12 +14,10 @@ import { Etherscan } from '@nomicfoundation/hardhat-verify/etherscan';
  * @returns The Etherscan API response
  */
 export async function callEtherscanApi(etherscan: Etherscan, params: any): Promise<EtherscanResponseBody> {
-  const parameters = new URLSearchParams({ ...params, apikey: etherscan.apiKey });
-
+  const parameters = { ...params, apikey: etherscan.apiKey };
   const response = await request(etherscan.apiUrl, {
     method: 'POST',
-    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
-    body: parameters.toString(),
+    query: parameters,
   });
 
   if (!(response.statusCode >= 200 && response.statusCode <= 299)) {