Have you ever noticed re-building masters functionality every time in your new application? Yes, we also noticed it. That’s why we build @knovator/masters-node and @knovator/masters-admin so that you don’t have to build them from scratch.

The masters’ package is the combination of two packages, @knovator/masters-node for the Backend and @knovator/masters-react for the Frontend.

@knovator/masters-node

Setup

Masters node adds master routes to your NodeJS application. To create a NodeJS application follow the below steps

mkdir node-app 
    cd node-app 
 yarn init -y 
yarn add express mongoose @knovator/masters-node

We have the application setup ready, let’s create one src/db.js file that will connect to the database,

// src/db.js
const mongoose = require('mongoose');

mongoose
  .connect('mongodb://localhost:27017/knovator')
  .then(() => console.info('Database connected'))
  .catch((err) => {
    console.error('DB Error', err);
  });

module.exports = mongoose;

@knovator/masters-admin package provides a facility to upload an image for submaster, so let’s create a route for it.

// src/fileRoute.js
const express = require('express');
const router = express.Router();

router.post(`/files/upload`, (req, res) => {
    // TO DO: some file storage operation
    let uri = "/image.jpg";
    let id = "62c54b15524b6b59d2313c02";
    res.json({
      code: 'SUCCESS',
      data: { id, uri },
      message: 'File uploaded successfully'
    });
});

router.delete(`/files/remove/:id`, (req, res) => {
    // TO DO: some file remove operation
    res.json({
        code: 'SUCCESS',
        data: {},
        message: 'File removed successfully'
    })
})

module.exports = router;

Now let’s create an app.js file that starts our application,

  require('./src/db');

  const cors = require('cors');
  const express = require("express");
  const fileRoutes = require('./fileRoute.js');
  const PORT = 8080;

  const app = express();
  app.use(cors());
  app.use(express.static("public"));
  app.use(fileRoutes);

  // ...
  app.listen(PORT, () => {
      console.log(`App started on ${PORT}`);
  });

Also Read : Image Resizing with Knovator

Usage

Are you ready with the setup? Great, using the masters-node package is very easy to use. Just add masters to app.use.

  const { masters } = require('masters-node');

  app.use("/admin/masters", masters());
  app.listen(PORT, () => {
      console.log(`App started on ${PORT}`);
  });

Do you want customization we got your back. We can customize the following parameters to it.

  • authentication – Provides the ability to add authentication to routes
  • logger – Provides the ability to add logging for Database and Validation, default is console
  • catchAsync – Wraps functions to handle async errors
  • convertToTz – Provides the ability to convert dates to other timezones

For Example,

app.use("/admin/masters", masters({
  authentication: (req, res, next) => {...},
  logger: console,
  catchAsync: (function) => (req, res, next) => {...},
  convertToTz: ({ tz, date }) => {...}
}));

If you want to use the Master modal somewhere else in your Application. For example, Give a relationship between the Master and User, you can import Master model and use it.

import { Master } from '@knovator/masters-node';

Found useful to you? Please give it a try and feel free to contact us if found any issues.