Frappe-backend NPM

Frappe-backend.js

Frappe backend is a meta-data driven backend framework that enables rapid application development of Node.js REST API. Inspired by frappejs a product from Frappe.

The objective of Frappe Backend is be a clean and opinionated micro-framework to develop small-business applications.

So, I love the simplicity of frappejs, and the Schema defined in the frappe framework to act as a Document Oriented framework, but using the power of a Relational Database Engine, what simplify and boost the level of coherence in the system.

Features

Rapid REST-API Development
Database backends

Quick Start

You can quickly get started with Typescript BoilerPlate

I you like to build it on your own, follow below guide:

Initialize a new NodeJS project

mkdir fback-demo && cd fback-demo npm init -y

Install Frappe Backend

npm i frappe-backend

add the Following to your package.json To start the server add this to your package.json

{
  ...
  "scripts": {
	"new-model": "frp-cmd new-model",
    "start": "frp-cmd start",
	"dev": "frp-cmd start dev"
  }
  ...
}

Create app Entry file for your project. e.g app.js and backend config file

const server = require('frappe-backend/server');

server.start({
  backend: 'pg', // To start a postgres backend.
  connectionParams: {
    db_name: process.env.DB_NAME, // Existing postgres database name
    username: process.env.DB_USERNAME, // Database username
    password: process.env.DB_PWD, // Database password
    host: process.env.DB_HOST, // Database host
    client: 'pg', // Database client. options are [pg]
  },
  enableCORS: true,
  //   models, // this will contain your database models
  // 	routes,
  // 	middlewareList: [testMid(124), testMid(5)],
});

Create frappe-backend.conf.js file at the root directory of your project. Minimum config look like:

module.exports = {
  dev: {
    devServerPort: process.env.PORT || 3000,
    devServerHost: 'localhost',
  },
  baseDir: '.', // If you want the model codes to be in another folder such as src
  useEs6: true, // If you want to generate models in ES6 Format
  node: {
    paths: {
      main: 'app.js',
    },
  },
  nodemon: {
    // To be able to run the development server
    watch: ['.'],
    ext: '.ts,.js',
    ignore: [],
    exec: 'ts-node',
    entry: './src/app.ts',
  },
};

To Generate your first Model(model is like database table). Example ToDo:

Now run npm run new_model ToDo This will create a new model in models/doctype called ToDo it will include a name field which represent the ID of each record. Go ahead and add the following fields under fields.: Read this to Understand more about models

{
	fieldname: 'subject',
	label: t`Subject`,
	placeholder: 'Subject',
	fieldtype: 'Data',
	required: 1,
},
{
	fieldname: 'status',
	label: t`Status`,
	fieldtype: 'Select',
	options: ['Open', 'Closed'],
	default: 'Open',
	required: 1,
},
{
	fieldname: 'description',
	label: t`Description`,
	fieldtype: 'Text',
},

Your ToDo.js Model should like this now:

module.exports = {
  name: 'ToDo',
  label: 'ToDo',
  naming: 'name', // {random|autoincrement}
  isSingle: 0,
  isChild: 0,
  isSubmittable: 0,
  settings: null,
  keywordFields: [],
  fields: [
    {
      fieldname: 'name',
      label: 'Name',
      fieldtype: 'Data',
      required: 1,
    },
    {
      fieldname: 'subject',
      label: t`Subject`,
      placeholder: 'Subject',
      fieldtype: 'Data',
      required: 1,
    },
    {
      fieldname: 'status',
      label: t`Status`,
      fieldtype: 'Select',
      options: ['Open', 'Closed'],
      default: 'Open',
      required: 1,
    },
    {
      fieldname: 'description',
      label: t`Description`,
      fieldtype: 'Text',
    },
  ],
};

Import models folder in your entry file

const server = require('frappe-backend/server');
const models = require('./models'); // Import Models folder
// import routes from './routes'; // Import Custom Routes
// import { testMid } from './middleware/sample.middleware';

server.start({
  backend: 'pg', // To start a postgres backend.
  connectionParams: {
    db_name: process.env.DB_NAME, // Existing postgres database name
    username: process.env.DB_USERNAME, // Database username
    password: process.env.DB_PWD, // Database password
    host: process.env.DB_HOST, // Database host
    client: 'pg', // Database client. options are [pg]
  },
  enableCORS: true,
  models, // Your Import
  // routes, // Your custom routing
  // middlewareList: [middleWare1, middleWare2], // Pass global middleware functions
});

Start Server

now run your server with npm run start. Your NodeJs Server will start at specified port. Go to your Postman and you should be able to consume RestAPI to your ToDo model. check this RestAPI Documentation