Is there a way to ensure that a dispatch is completed before selecting from a store? I haven't had any luck finding a solution online. How can I make sure the dispatch finishes before selecting from the store?
I would appreciate any help with my code.
**team-list.component.ts**
teamsState: Observable<{teams: Team[]}>;
constructor(private store: Store<fromApp.AppState>) { }
ngOnInit() {
this.store.dispatch(new TeamActions.GetTeams({
search: this.search,
limit: this.limit,
skip: this.skip,
sortBy: this.sortBy
}));
this.teamsState = this.store.select('teams');
}
**team-list.component.html**
<mat-expansion-panel
*ngFor="let team of (teamsState | async).teams; let i = index">
<mat-expansion-panel-header>
<div class="container-fluid">
<div class="row">
<div class="col-md-1">{{ i+1 }}</div>
<div class="col-md-1">
<div class="post-image">
<img [src]="imageUrl+team.imagePath" [alt]="team.name" style>
</div>
</div>
<div class="col-md-10"> {{ team.name }} </div>
</div>
</div>
</mat-expansion-panel-header>
effects
@Effect() // If you do not want to dispatch any actions, if need to modify store state then remove
teamList = this.actions$.pipe(
ofType(TeamActions.GET_TEAMS),
map((action: TeamActions.GetTeams) => {
return action.payload;
}),
switchMap((params: {search: string, limit: number, skip: number, sortBy: string}) => {
return this.httpClient.get<Team[]>(
`${BACKEND_URL}?search=${params.search}&&limit=${params.limit}&&skip=${params.skip}&&sortBy=${params.sortBy}`);
}),
map((teams: Team[]) => {
return {
type: TeamActions.SET_TEAMS,
payload: teams
};
}),
catchError((err, caught) => {
// console.log(err.error.errors);
this.snackBarService.showSnackBar('Unable to Get Teams', true);
return caught;
})
);
When loading for the first time, the dispatching action is not yet completed and the store selection returns as empty. This issue needs to be resolved.