React Persistent Api Repository (jsxpa)

React Persistent API Jsxpa is similar to
Springboot JPA repository where we can define our custom
repo with entity class as generic type and all of the
default available crud functions can be directly used.

Jsxpa supports typescript out of box and can be used in the pure react javascript projects.

1. Create a normal model class

export class Employee {
  firstName: string;
  lastName: string;
  designation: string;
}

2. Create a repo for above model class extending NeDBRepository and implement the returnEntityInstance method like below

import { NeDBRepository } from "@salilvnair/jsxpa";
import { Employee } from "../model/employee.model";

export class EmployeeRepo extends NeDBRepository<Employee> {
  // below method decides name of the file name where nedb will store the data
  // so basically it is a database file or a table name
  databaseName(): string {
    return "employee";
  }
}

3. How to use it in any Typescript class

import { EmployeeRepo } from './employee/repo/employee.repo';
import { Employee } from './employee/model/employee.model';

export class EmployeeService  {
  save(){
    let employeeRepo:EmployeeRepo = new EmployeeRepo();
    let employee:Employee = new Employee();
    employee.firstName = "John";
    employee.lastName = "Doe";
    employee.designation = "CEO";
    this.employeeRepo.save(employee);
  }
}

when the above code executes a folder named jsxpa-data will be created at the root path.

which will have a subfolder named nedb which in turn will have two subfolders named config and database.

config folder contains nedb.config.json which is generated as default config.

database folder is where the real data recides post save with file named as whatever given in the entity Database decorators value.