Promises and async/await fix this. The Node API unfortunately is built around callbacks, but can be turned into a Promise-based API using the built-in "promisi

Promises and async/await fix this. The Node API unfortunately is built around callbacks, but can be turned into a Promise-based API using the built-in "promisify" tool: https://nodejs.org/dist/latest-v8.x/docs/api/util.html#util_util_promisify_original https://nodejs.org/dist/latest-v8.x/docs/api/util.html#util_...