Accessing data in store from library angular

If you are using Angular and have a library that needs to access data from the store, there are a few ways you can achieve this. In this blog post, we will explore two common solutions.

Solution 1: Using a service

One way to access data in the store from a library is by using a service. You can create a service in your library that injects the store and provides methods to retrieve the data.

Here is an example of how you can implement this solution:

// In your library

import { Injectable } from '@angular/core';
import { Store } from '@ngrx/store';
import { AppState } from 'path/to/app/state';
import { selectData } from 'path/to/app/state/selectors';

@Injectable()
export class DataLibraryService {
  constructor(private store: Store) {}

  getData() {
    return this.store.select(selectData);
  }
}

// In your app

import { DataLibraryService } from 'path/to/library/service';

@Component({
  selector: 'app',
  template: `
    
      {{ item }}
    
  `
})
export class AppComponent {
  data$ = this.dataLibraryService.getData();

  constructor(private dataLibraryService: DataLibraryService) {}
}

In this example, we create a service called DataLibraryService in the library that injects the store and provides a method getData() to retrieve the data from the store. In the app component, we inject the DataLibraryService and use the getData() method to get the data and bind it to the template using the async pipe.

Solution 2: Using a selector

Another way to access data in the store from a library is by using a selector. Selectors allow you to efficiently retrieve specific data from the store.

Here is an example of how you can implement this solution:

// In your library

import { createSelector, Store } from '@ngrx/store';
import { AppState } from 'path/to/app/state';

export const selectData = createSelector(
  (state: AppState) => state.data,
  (data) => data
);

// In your app

import { selectData } from 'path/to/library/selectors';

@Component({
  selector: 'app',
  template: `
    
      {{ item }}
    
  `
})
export class AppComponent {
  data$ = this.store.select(selectData);

  constructor(private store: Store) {}
}

In this example, we define a selector called selectData in the library that retrieves the data property from the store. In the app component, we use the select() method of the store to select the data using the selectData selector and bind it to the template using the async pipe.

These are two common solutions for accessing data in the store from a library in Angular. Depending on your specific use case, you can choose the solution that best fits your needs.

I hope you found this blog post helpful. Happy coding!

Accessing data in store from library angular