Grab JSON artifacts and extract the ABIs from them into a new folder

getABIs.js

const path = require("path");
const fs = require("fs");

// get JSON artifact files
const artifactDir = path.join(__dirname, "build/contracts/");
const files = fs.readdirSync(artifactDir);
const jsonFiles = files.filter(x => x.slice(-4) === "json");

console.log(jsonFiles.length, "json files found");

// create abi directory
const outDir = "./abi/";
if (!fs.existsSync(outDir)) {
  fs.mkdirSync(outDir);
}

// read the files
let count = 0;
jsonFiles.forEach(filename => {
  const artifactPath = artifactDir + filename;
  const rawdata = fs.readFileSync(artifactPath);
  const json = JSON.parse(rawdata);
  const abi = json.abi;

  if (abi.length > 0) {
    const data = JSON.stringify(abi, null, 2);
    fs.writeFileSync(`${outDir}${filename}`, data);
    console.log("success:", filename);
    count++;
  }
});
console.log(`${count} file(s) produced`);