better-dependency-injection-with-laconia

lambda.js

const laconia = require("@laconia/core");

// Creates the dependencies
const instances = async () => {
  const password = await getPassword();
  return { twitterService: new TwitterService(password) };
};

// Declare the dependency you need by destructuring
const handler = ({ twitterService }) => {
  return twitterService.getLatestTweets(1000);
};

// Bootstrap laconia
exports.handler = laconia(handler).register(instances);