I have defined a function service in one of the file

import Category from '../models/Category.js';

export const AllCategories = () => {
        console.log('hit');
        const cursor =  Category.find({});
        console.log(cursor);
        return cursor
}


export default {AllCategories}

I am importing this in the controller file

import express from 'express';
import categoryService from '../services/categories.js'
const router = express.Router();

export const getCategories = async(req,res) => {
    try {
        const categoriesInfo = categoryService.AllCategories
        res.status(200).json(categoriesInfo)
    } catch (error) {
        res.status(404).json({ message: error.message });
    }
}

export default router;

But the issue is that AllCategories is not getting run, what is wrong here

I also tried adding async/await

import Category from '../models/Category.js';

export const AllCategories = async () => {
    try {
        console.log("hit");
        const cursor =  await Category.find({});
        console.log(cursor);
        return cursor
    } catch (error) {
       return error 
    }
}


export default {AllCategories}

But still no luck

CodePudding user response：

You're not calling the function, this saves it in the variable categoriesInfo:

const categoriesInfo = categoryService.AllCategories

To get its return value:

const categoriesInfo = await categoryService.AllCategories();

Note: I think you need to make it async if you're doing a db transaction so keep the second version and test it.

CodePudding user response：

You can't use the ES module or ESM syntax by default in node.js. You either have to use CommonJS syntax or you have to do 1 of the following.

1. Change the file extension from .js to .mjs
2. Add to the nearest package.json file a field called type with a value of module