Cannot read property 'getAllProducts' of undefined - mysql

Question

The problem is in db.js because it's trying to load something from db which does not exist.
In my index.js page:
const dataB = require("./db").getAllProducts;
app.get('/scrapper', async (req, res) => {
const Myobjects = await dataB.getAllProducts();
res.send(Myobjects)
})
And in my db.js page:
async function getAllProducts() {
const connection = await getConnection();
const pageRepo = connection.getRepository(Crawlers);
const pages = await pageRepo.find();
connection.close();
return pages;
}
async function InsertScrappedData(texte, image, price){
const connection = await getConnection();
const page = new Crawler();
page.texte = texte;
page.image = image;
page.price = price;
const crawlertrepo=connection.getRepository(Crawlers);
const res=await crawlertrepo.save(Crawlers);
Console.log('saved',res);
const Allpages = await crawlertrepo.find();
connection.close();
return Allpages;
}
Exporting my functions
module.exports = [
getAllProducts,
InsertScrappedData
]

Answer 1

module.exports is an object type, not an array, so you need to use curly brackets when assigning it.
module.exports = {
getAllProducts,
InsertScrappedData
}
Relevant documentation
This is actually a condensed form of assigning the getAllProducts function to the getAllProducts key of a new object and then assigning that object to module.exports
// Equivalent but unnecessarily verbose
module.exports = {
getAllProducts: getAllProducts,
InsertScrappedData: InsertScrappedData
}