Class constructor model cannot be invoked without 'new'

Im setting up my nodejs and graphql api. Using Sequelize as ORM i created my migrations and seeders starting from sequelize-init. Now when i run my app (npm start) an error comes up. I did some searching and the closest answer I found is on this link below but it's not doing anything for me at all.

TypeError: Class constructor model cannot be invoked without 'new'

'use strict';    const fs = require('fs');  const path = require('path');  const Sequelize = require('sequelize');  const basename = path.basename(__filename);  const env = process.env.NODE_ENV || 'development';  const config = require(__dirname + '/../config/config.json')[env];  const db = {};    let sequelize;  if (config.use_env_variable) {    sequelize = new Sequelize(process.env[config.use_env_variable], config);  } else {    sequelize = new Sequelize(config.database, config.username, config.password, config);  }    fs    .readdirSync(__dirname)    .filter(file => {      return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');    })    .forEach(file => {      // const model = require(path.join(__dirname, file))(sequelize, Sequelize.DataTypes);      const modelDir = require(path.join(__dirname, file));       const model = new modelDir(sequelize, Sequelize.DataTypes)      db[model.name] = model;    });    Object.keys(db).forEach(modelName => {    if (db[modelName].associate) {      db[modelName].associate(db);    }  });    db.sequelize = sequelize;  db.Sequelize = Sequelize;    module.exports = db;  

Error:

const model = require(path.join(__dirname, file))(sequelize, Sequelize.DataTypes);                                                       ^    TypeError: Class constructor model cannot be invoked without 'new'  

I've tried to use 'new' this way

    const modelDir = require(path.join(__dirname, file));       const model = new modelDir(sequelize, Sequelize.DataTypes)  

but it just results to this error

TypeError: modelDir is not a constructor  

https://stackoverflow.com/questions/66961238/class-constructor-model-cannot-be-invoked-without-new April 06, 2021 at 08:14AM