node-lombok

node-lombok

• A lightweight npm package for typescript decorators which mimic some of the functionalities offered by lombok for java.

Usage

• Install with npm i node-lombok
• Please ensure that you have set experimentalDecorators set as true in your tsconfig.json

@Data

• @Data adds getters and setters for all defined attributes. Refer example below:
• If you define your own getters / setters methods then it will be overwritten by @Data

A get method will capitilize the first letter of the attribute and add "get" as a prefix. So basically a get method for "name" will look like "getName"
A set method will capitilize the first letter of the attribute and add "set" as a prefix. So basically a set method for "name" will look like "setName"

import { Data } from 'node-lombok';

@Data()
class User {
  [x: string]: any;
  private name: string;
  private email: string;

  constructor(name: string, email: string) {
    this.name = name;
    this.email = email;
  }
}
const user = new User('', '');
user.setName('user');
user.setEmail('[e-mail]');
console.log(user.getName());
console.log(user.getEmail());

@Getters

• @Getters adds getters for all defined attributes
• If you define your own getter method then it will be overwritten by @Getters

A get method will capitilize the first letter of the attribute and add "get" as a prefix. So basically a get method for "name" will look like "getName"

import { Getters } from 'node-lombok';

@Getters()
class User {
  [x: string]: any;
  private name: string;
  private email: string;

  constructor(name: string, email: string) {
    this.name = name;
    this.email = email;
  }
}
const user = new User('user', 'user@email');
console.log(user.getName());
console.log(user.getEmail());

@Setters

• @Setters adds setters for all defined attributes
• If you define your own setter method then it will be overwritten by @Setters
• A set method is will capitilize the first letter of the attribute and add set as a prefix. So basically a set method for name will look like setName

A set method will capitilize the first letter of the attribute and add "set" as a prefix. So basically a set method for "name" will look like "setName"

import { Setters } from 'node-lombok';

@Setters()
class User {
  [x: string]: any;
  private name: string;
  private email: string;

  constructor(name: string, email: string) {
    this.name = name;
    this.email = email;
  }
}
const user = new User('', '');
user.setName('user');
user.setEmail('[e-mail]');
console.log(user);

@Store

• @Store sets up storage for all objects of a class.
• storage is basically just a map where the instantiated object is stored agains it's _id.
• The _id is auto incremented and storageMap looks like: { _id: object }.

If you use please don't define "_id", "getId()" and "static findById" in your class as they are already defined by the decorator
You'll have to use @ts-ignore as a comment when calling `ClassName.findById` because ts doesn't recognize `findById` method

import { Store } from 'node-lombok';

@Store()
class User {
  [x: string]: any;
  private name: string;
  constructor(name: string) {
    this.name = name;
  }
}
const a = new User('A');
const b = new User('B');
// b will have _id = 2 so you can search it from storage like:

// @ts-ignore
console.log(User.findById(2));