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@knovator/masters-node

v2.3.0

Published

NodeJS backend for @knovator/masters

Downloads

72

Readme

About The Project

@knovator/masters-node is built with intent to faster development cycle by providing plug & play facility for masters/submasters, that is used almost on every project.

Built With

Getting Started

To integrate @knovator/masters-node, you should be having basic nodejs application up and running with express (optionally using mongoose for mongodb database). @knovator/masters-node add routes for masters in application.

Prerequisites

  • It's good start to have nodejs application up and running with express (optionally using mongoose for mongodb database). Good to have used i18next to add message in response codes.
  • routes uses mongoose connection established by application, so it's required to connect to database before using package. Example,
    // 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;
  • Image upload route for upload & remove is needed to declare externally. Example,
    // 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;

Sample App file

  require('./src/db');
  require('./src/models/file');

  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}`);
  });

Installation

  1. Install library
    npm install @knovator/masters-node
    # or
    yarn add @knovator/masters-node

Usage

App/Main file is a good place to use @knovator/masters-node

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

Masters package allows providing authentication, logger and catchAsync functions as parameters.

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

parameter explanations

  • authentication
    • Provides ability to add authentication to routes
      // default
      (_req, _res, next) => {
        return next();
      }
  • logger
    • Provides ability to add logging for Database and Validation
      // default
      console
  • catchAsync
    • Wraps functions to handle async errors
      // default
      function catchAsync(fn) {
        return function (req, res, next) {
          Promise.resolve(fn(req, res, next)).catch((err) => {
            // this.logger.error(err.message);
            res.status(internalServerError).json({
              code: RESPONSE_CODE.ERROR,
              message: err.message,
              data: {},
            });
          });
        };
      }

Routes Infomration

Response follows following structure

{
  code: RESPONSE_CODES,
  message: "" // if internationalized is applied
  data: {}
}

Response Codes

| Code | Description | | --- | ----------- | | SUCCESS | When request fullfiled without error | | ERROR | When request fullfiled with error |

Custom Validation messages

| Message | Description | | --- | ----------- | | Master exists | When master/submaster with same code is exist in database |

HTTP Status Codes

| HTTP | Description | | --- | ----------- | | 200 | When request fullfiled without error | | 201 | When document is created | | 500 | When internal server occurred | | 422 | When Validation error occurred |

Routes

| Route | Description | | --- | ----------- | | /create | Creates Master/SubMaster record | | /update:id | Updates Master/SubMaster record | | /partial-update/activate/:id | Turn on/off isActive field based on body data | | /partial-update/default/:id | Turn on/off isDefault field based on body data | | /partial-update/web-visible/:id | Turn on/off isWebVisible field based on body data | | /partial-update/sequence/:id | Sets sequence of record with :id, and updates affected records sequence | | /delete | Delete the record whose id send in body |

i18n code for messages

Nextjs i18n package adds facility for internationalization in nodejs application, and it's used in following mannerr

// usage
req?.i18n?.(CODE)

| CODE | Description | | --- | ----------- | | (master/submaster).create | When record is created | | (master/submaster).update | When record is updated | | (master/submaster).activate | When isActive is set to true | | (master/submaster).deactivate | When isActive is set to false | | (master/submaster).display | When isWebVisible is set to true | | (master/submaster).notDisplay | When isWebVisible is set to false | | (master/submaster).default | When isDefault is set to true | | (master/submaster).notDefault | When isDefault is set to false | | submaster.seq | When sequence is updated | | (master/submaster).delete | When delete is performed | | (master/submaster).findAll | When all data is fetched | | (master/submaster).notFound | When Master/Submaster data is not found |

descriptor codes

| Code | Description | | --- | ----------- | | master.create | For Create API | | master.update | For Update API | | master.active | For isActive toggle API | | master.default | For isDefault toggle API | | master.webVisible | For isWebVisible toggle API | | master.sequence | For sequence update API | | master.softDelete | For Soft-Delete API | | master.list | For List API |

  • You can prefix descriptors by adding MASTERS_DESCRIPTOR_PREFIX in environment variables.

Usecases

@knovator/masters is combination of two packages @knovator/masters-admin and @knovator/masters-admin. It is designed plug and play masters module in your project. It is useful in following cases:

  • Your app needs master, submaster facility to build things like state with city, experiences with skills, categories with subcategories etc.
  • You want to let admin manage masters and submasters data from admin panel.
  • You want to show masters and submasters data somewhere in your app.

If you have any other usecase, please open an issue with tag usecase. We will try to add it in our roadmap.

Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement". Don't forget to give the project a star! Thanks again!

  1. Fork the Project
  2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
  3. Commit your Changes (git commit -m 'Add some AmazingFeature')
  4. Push to the Branch (git push origin feature/AmazingFeature)
  5. Open a Pull Request

License

Distributed under the MIT License. See LICENSE.txt for more information.

Contact

Knovator Technologies

Project Link: https://github.com/knovator/masters-node