sequelize-cross-db-databases.js

const Sequelize = require("sequelize");
const config = require("../config");

const UsersDb = new Sequelize(config.usersDatabaseName, config.username, config.password, config.options);

UsersDb.import("models/user.js");
UsersDb.import("models/order.js");

const ProductsDb = new Sequelize(config.productsDatabaseName, config.username, config.password, config.options);

ProductsDb.import("models/product.js");