DISCLAIMER: This is not maintained nor finished. If you have any interest in this project, contact me.

ngx-api-orm

Some links to get you started:

• API Documentation.

The NPM packages:

• Core package - This is the default package needed to start
• Optional packages:
  • Json:api implementation

Note: docs are still under construction.

A rest API Object Relationship Mapper (ORM) for Angular. Tested with Angular 6.1.x. Can be used seamlessly with JSON:api or easily be adjusted to work with your own format.

It's aim is to remove as much boilerplate code as possible while allowing for easy extendability. It will empower your models with CRUD functionality and also manages to-one and to-many relationships.

An example of a model would be:

@Model()
export class Employee extends Resource {
  @Field()
  public id: number;
  @Field()
  public firstName: string;
  @Field()
  public lastName: string;
  @ToOne(Team)
  public team: ToOneRelation<Employee, Task>;
  @ToMany(Task): 
  public tasks: ToManyRelation<Employee, Task>;

  public mumble(): void {
      console.log('mumble mumble mumble ....')
  }
}

@Model()
export class Task extends Resource {
  @Field()
  public id: number;
  @Field()
  public title: string;
}

@Model()
export class Team extends Resource {
  @Field()
  public id: number;
  @Field()
  public teamName: string;
}

Then, common usage will look like

/* POST /employees */
const john: Employee = await new Employee().save(); /*  All CRUD methods come with type safety. */

/* GET /employees */
const employees: Array<Employee> = await Employee.fetch(); /* Fetches all from API. */
const someGuy = employees[0];
someGuy.firstName = 'Mike'
someGuy.mumble()  /* 'mumble mumble mumble ....' */

/* PATCH /employees/{id} */
await someGuy.update() /* will only send updated fields */

/* DELETE /employees/{id} */
await someGuy.delete()

/* There will also Task and Team instances available if they were included by the response from GET /employees */
const tasks: Array<Task> = Task.collection();  /* Gets the locally available instances */

/* PATCH /employees/{id}/team  with body {id: 20}  */
await someGuy.team.set( Team.find(20)); //* update the to-one relationship */

/* DELETE /employees/{id}/team */
await someGuy.team.remove(); //* clear the to-one relationship */
someGuy.team.instance === null  /* Will be true */

For more detailed information on the available methods and how to use them, see the model usage guide.

Getting Started

To get started you need the following:

• Install the library
• Import it in your module
• Write a model
• (optional) extend functionality
• use it!

Installing the library

Using NPM (link to package here):

npm install --save @ngx-api-orm/core
npm install --save @ngx-api-orm/json-api 

If you wish to install a specific version, you can use the following format (if you would like to use 0.0.1-beta6 of the core package)

npm install --save @ngx-api-orm/[email protected]

Import the library in your module

import { HttpClientModule } from '@angular/common/http';
import { ResourceModule, JsonApiDotOrg } from '@ngx-api-orm/core';

@NgModule({
  declarations: [ ... ],
  imports: [ ... ,
    ResourceModule.forRoot({ 
            rootPath: 'https://example.com/api/v1',
            requestHandlers: JsonApiDotOrg /* Requires package @ngx-api-orm/json-api. Omit this line if you're not using a JsonApi.org formatted API.  */
        }),
    HttpClientModule, /* this is required */
    ... ],
  providers: [ ...],
  bootstrap: [ ... ]
})
export class SomeModule {}

Writing Models

See the model usage guide for detailed instructions on how to use the Resource classes and decorators.

Extend the functionality where needed

If the ngx-api-orm default format or the JsonApi.org format is not what you're getting from your API, see the extendability guide. This library leverages the power of Angular's dependency injection, making it super easy to override certain default features.