make scrapeContractCreationCodeFromEtherscan async

plugins/import/import.ts

@@ -84,27 +84,27 @@ async function getEtherscanApiData(network: string, address: string, apiKey: str
 }
 
 async function scrapeContractCreationCodeFromEtherscan(network: string, address: string) {
-  const url = `${getEtherscanUrl(network)}/address/${address}#code`;
-  debug(`Attempting to scrape Contract Creation code at ${url}`);
-  const result = <string>await get(url, {});
-  const regex = /<div id='verifiedbytecode2'>[\s\r\n]*([0-9a-fA-F]*)[\s\r\n]*<\/div>/g;
-  const regexDoubleQuotes = /<div id="verifiedbytecode2">[\s\r\n]*([0-9a-fA-F]*)[\s\r\n]*<\/div>/g;
-  const matches: Array<unknown> = await new Promise((res, rej)=> {
+  return new Promise(async (resolve, reject) => {
+    const url = `${getEtherscanUrl(network)}/address/${address}#code`;
     try {
-      res([...result.matchAll(regex), ...result.matchAll(regexDoubleQuotes)])
-    } catch (e) {
-      rej(new Error(`Failed to match contract: ${url}`))
-    }
-  })
-  if (matches.length === 0) {
-    if (result.match(/request throttled/i) || result.match(/try again later/i)) {
-      throw new Error(`Request throttled: ${url}`);
-    } else {
-      throw new Error(`Failed to pull deployed contract code from Etherscan: ${url}`);
+      debug(`Attempting to scrape Contract Creation code at ${url}`);
+      const result = <string>await get(url, {});
+      const regex = /<div id='verifiedbytecode2'>[\s\r\n]*([0-9a-fA-F]*)[\s\r\n]*<\/div>/g;
+      const regexDoubleQuotes = /<div id="verifiedbytecode2">[\s\r\n]*([0-9a-fA-F]*)[\s\r\n]*<\/div>/g;
+      const matches = [...result.matchAll(regex), ...result.matchAll(regexDoubleQuotes)];
+      if (matches.length === 0) {
+        if (result.match(/request throttled/i) || result.match(/try again later/i)) {
+          throw new Error(`Request throttled: ${url}`);
+        } else {
+          throw new Error(`Failed to pull deployed contract code from Etherscan: ${url}`);
+        }
+      }
+      debug(`Scraping successful for ${url}`);
+      resolve(matches[0][1])
+    } catch (error) {
+      reject(error);
     }
-  }
-  debug(`Scraping successful for ${url}`);
-  return matches[0][1];
+  });
 }
 
 function paramString(params: { [k: string]: string | number }) {