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ngrx effect

Black Beetle answered on August 5, 2024 Popularity 3/10 Helpfulness 7/10

answer ngrx effect

ngrx effect

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How to create Redux effect in ngRx (ngrx.io/guide/store):
// Imports
import { Injectable } from '@angular/core';
import { Actions, createEffect, ofType } from '@ngrx/effects';
import { catchError, map, of, switchMap } from 'rxjs';
// Schema:
  constructor(private actions$: Actions, private chosenService: ServiceClass) {}

  actionName = createEffect(() =>
    this.actions$.pipe(
      ofType(
        // Trigger actions 
      ),
      switchMap(() => this.chosenService.chosenMethod().pipe(
          map((x) => ActionsGroup.Success(x)),
          catchError((error) => of(ActionsGroup.Failure({ error }))
          )
        )
      )
    )
  );


// Example:
  loadCandidates$ = createEffect(() =>
    this.actions$.pipe(
      ofType(
        CandidatesFrontActions.loadCandidates,
        CandidatesApiActions.editCandidateSuccess
      ),
      switchMap(() =>
        this.candidatesService.getAllCandidates().pipe(
          map((candidates) =>
            CandidatesApiActions.loadCandidatesSuccess(candidates)
          ),
          catchError((error) =>
            of(CandidatesApiActions.loadCandidatesFailure({ error }))
          )
        )
      )
    )
  );

Popularity 3/10 Helpfulness 7/10 Language typescript

Source: Grepper

Tags: effect ngrx typescript

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Contributed on Aug 05 2024

Black Beetle

0 Answers Avg Quality 2/10

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