如何解决在一个效果中连接 2 个 Angular NGRX 动作
我对 redux 非常陌生,我面临一个问题,我不知道是否有可能解决,或者我应该更改组件和存储的工作方式。
export const updateOrganizationSettings = createAction(
'[Organization settings effect] Update organization settings via service',props<{ organizationSettings: OrganizationSettings }>()
);
此操作会触发以下效果:
updateOrganizationSettings$ = createEffect(
() =>
this.actions$.pipe(
ofType(organizationSettingsActionTypes.updateOrganizationSettings),concatMap((action) =>
this.organizationSettingsService.updateOrganizationSettings(
action.organizationSettings
)
)
),{ dispatch: false }
);
我想要做的是以某种方式在成功时分派另一个 Action,然后更改存储:
export const organizationSettingsUpdated = createAction(
'[Organization settings reducer] Organization settings updated successfully',props<{ updatedOrganizationSettings: OrganizationSettings }>()
);
问题是来自 API 的响应是真/假,而此操作需要更新的模型,而我只有第一个操作。
有办法吗?这是与商店合作的糟糕方式吗? 作为最后一个选项,我可以更改 API 以返回更新后的模型,但我想知道是否还有其他可能性。
谢谢
=== 编辑 ===
这是在Effect里面调用后端的API服务:
updateOrganizationSettings(
organizationSettings: OrganizationSettings
): Promise<boolean> {
return this.httpService
.put<boolean>('/general-settings',organizationSettings)
.then((data) => data);
}
这应该是 api 调用返回 true 后分派的操作:
export const organizationSettingsUpdated = createAction(
'[Organization settings reducer] Organization settings updated successfully',props<{ updatedOrganizationSettings: OrganizationSettings }>()
);
最后这应该是reducer
on(
organizationSettingsActionTypes.organizationSettingsUpdated,(state,action) => ({
...state,organizationSettings: action.updatedOrganizationSettings
})
)
解决方法
updateOrganizationSettings$ = createEffect(() =>
this.actions$.pipe(
ofType(organizationSettingsActionTypes.updateOrganizationSettings),mergeMap((action) => {
return this.organizationSettingsService.updateOrganizationSettings(action.organizationSettings).pipe(
map(response => updateOrganizationSettingsSuccess(response)) --> the action you are asking for
catchError(error => updateOrganizationSettingsError(error))
)
})
));
当然,您应该创建一个 updateOrganizationSettingsSuccess
和 updateOrganizationSettingsError
操作 + 将其连接到减速器。
这有帮助吗?
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