Function dbConnectAndExecute

aws-node-rest-api-mongodb/handler.js:18–20

(dbUrl, fn)

const dbExecute = (db, fn) => db.then(fn).finally(() => db.close());

function dbConnectAndExecute(dbUrl, fn) {
  return dbExecute(mongoose.connect(dbUrl, { useMongoClient: true }), fn);
}

module.exports.user = (event, context, callback) => {
  if (!validator.isAlphanumeric(event.pathParameters.id)) {