Behavior Subject Entitites

Description

Behavior Subject Entitites is a helper class designed to be used in place of a standard BehaviorSubject(). It includes all CRUD functions to make dealing with adding, removing, and deleting easier.

Installation

• Install the package

  npm install behavior-subject-entities --save

Use

• Import it in a TS file

import { EntityClass } from 'behavior-subject-entities';

Demo

• Option 1: Extend it on a Class
  • Stackblitz

export class TestService extends EntityClass<T>

• Options 2: add it as a variable to a class
  • Stackblitz

subject = new EntityClass<T>();

Options

EntityClass accepts a few options

Key	Required	Type	Default Value	Description
key	false	IdSelector	(instance: any) => instance.id	Id selector for the Entity. Pass a new function if you do not use id
name	false	string	Item	The Single Name for the Entity
plural	false	string	Items	The Plural Name for the Entity

Methods

Method	Parameters	Return
data$	N/A	Observable<EntityObjContainer<T>>
items$	N/A	Observable<T[]>
activeId$	N/A	Observable<string>
addOne	item: T	void
addMany	arr: T[]	void
getOne	id: string	Observable<T>
getMany	ids: string[]	Observable<T[]>
updateOne	item: T	void
updateMany	arr: T	void
removeOne	id: string	void
removeMany	ids: string[]	void
snapshot	N/A	EntitySnapshot<T>
setActiveId	id: string	void