How to Display Toasts or Notices using Lightning : NotificationLibrary

By | June 28, 2021

In this blog, we will discuss on how to display messages via toast or notices using Lightning:NotificationLibrary component.

Lightning:NotificationLibrary

  • Lightning:NotificationLibrary component provides an easy way to display messages via toasts or notices.
  • However, Toast message helps in providing feedback to users. Above all, a toast message can be closed automatically after the predefined period of time has elapsed.
  • Notices can block the user’s entire screen until the user closes it manually. After that, it shall alert users about system-related issues and updates.

Create Lightning Component

LightningNotifications Component

  • Firstly, to display toast or notices using Lightning:NotificationLibrary component we have to include “<lightning:notificationsLibrary aura:id="notifyId"/>" tag in the component that triggers the notifications, where aura:id is a unique local ID.
  • Secondly, kindly note that only one tag is enough to display multiple notifications. Refer the below code to define the component.
<aura:component>
    <lightning:notificationsLibrary aura:id="notifyId"/>
    <lightning:button name="notice" label="Display Notice" onclick="{!c.showNotice}"/>
    <lightning:button name="toast" label="Display Toast" onclick="{!c.showToast}"/>
</aura:component>

LightningNotificationController

  • Also, in order to create and display notice, we need to use “component.find('notifyId').showNotice()", where “notifyId" is  the aura:id of lightning:notificationsLibrary instance which we define in the above component.
  • Similarly, to create and display toast, we need to use “component.find('notifyId').showToast(),where “notifyId” is  the aura:id of lightning:notificationsLibrary instance which we define in the above component.
  • Kindly refer to the below code.
({
  	showNotice : function(component, event, helper) {
		component.find('notifyId').showNotice({
            "variant": "error",
            "header": "An Internal Server has occured!",
            "message": "There was a problem updating the record. Please contact your system administrator.",
            closeCallback: function() 
			{
                $A.get('e.force:refreshView').fire();
            }
        });
	},
    showToast : function(component, event, helper) {
        component.find('notifyId').showToast({
            "variant": "Success",
            "title": "Success!",
            "message": "Component Loaded successfully."
        });
	}  
})
  • Here is the output, so now when the user clicks on the “Display Notice” button, a notice message popup will appear as shown in the below image.
Display Notice
Display Notice
  • Similarly, when the user clicks on the “Display Toast” button, a toast message popup will appear as shown in the below image.
Display Toast
Display Toast

This way, you can display messages via toast or notice using the lightning component. We hope you may find this blog resourceful and helpful.

If you still have concerns and need more help, please contact us at salesforce@greytrix.com.

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