Experiencing a problem with sequelize that is preventing me from utilizing the findAll method

As I dive into the world of Sequelize, I've hit a roadblock. In my attempt to connect my controller, route, model, and other components, I encountered an error when trying to access my route (localhost:3000/api/carousel):

TypeError: Cannot read properties of undefined (reading 'findAll')
    at getAllCarouselItems (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\controllers\carousel-item_controller.js:6:47)
    at Layer.handle [as handle_request] (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\layer.js:95:5)      
    at next (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\route.js:144:13)
    at Route.dispatch (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\route.js:114:3)
    at Layer.handle [as handle_request] (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\layer.js:95:5)      
    at C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\index.js:284:15
    at Function.process_params (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\index.js:346:12)
    at next (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\index.js:280:10)
    at Function.handle (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\index.js:175:3)
    at router (C:\Users\theob\OneDrive\Documents\DEV\le_burguignon\back\node_modules\express\lib\router\index.js:47:12)

In my controller, the findAll method is not working as expected:

const CarouselItem = require('../models/carousel-item');
const db = require('../config/sequelize');

async function getAllCarouselItems(req, res) {
    try {
        const carouselItems = await db.CarouselItem.findAll();
        res.json(carouselItems);
    } catch (err) {
        console.error(err);
        res.status(500).json({ message: 'Server Error' });
    }
}

module.exports = { getAllCarouselItems };

I'm wondering if there's something crucial that I might have overlooked.

I've attempted using console logs, researching the errors online, and even seeking assistance from chatbots, but as a novice in this technology, I often feel lost and uncertain about where to focus my attention.

Answer №1

After some experimentation, I inserted the following code snippet into my app.js:

sequelize
    .authenticate()
    .then(() => {
        console.log('Connection has been established successfully.');
    })
    .catch((error) => {
        console.error('Unable to connect to the database: ', error);
    });

Surprisingly, it worked flawlessly. Although, I am not entirely certain if using authenticate() was the correct way to test the connection.

Additionally, I made the decision to eliminate the 'db' aspect from the equation.

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