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Databases

Posted by Elise Lawrence
Elise Lawrence
4,844 Points

SQL ORMs with Node.js - Unhandled Promise Rejection

My code was working perfectly before the 'Improving Project Layout Step'. I continually receive this error: 

(node:68397) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:68397) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

I have now copied the project files exactly in order to avoid any potential typos. I only began to have issues after I split up the project into separate files in db folder. Here is my app.js code (now copied directly from the complete project files). This is where my promises are handled so I am suspecting the problem is here. 

const db = require('./db');
const { Movie } = db.models;

(async () => {
  await db.sequelize.sync({ force: true });

  try {
    const movie = await Movie.create({
      title: 'Toy Story',
      runtime: 81,
      releaseDate: '1995-11-22',
      isAvailableOnVHS: true,
    });
    console.log(movie.toJSON());

    const movie2 = await Movie.create({
      title: 'The Incredibles',
      runtime: 115,
      releaseDate: '2004-04-14',
      isAvailableOnVHS: true,
    });
    console.log(movie2.toJSON());

  } catch (error) {
    console.error('Error connecting to the database: ', error);
  }
})();