Laravel 5.4
Awesome Laravel
- Awesome Laravel (Chirag Gude)
Prologue
- Release Notes
- Upgrade Guide
Getting Started
- Installation
- Configuration
- Directory Structure
- Laravel Homestead
- valet
Architecture Concepts
- Request Lifecycle
- Service Container
- Service Providers
- Facades
The Basics
- Routing
- Errors & Logging
- Middleware
- CSRF Protection
- Controllers
- HTTP Requests
- HTTP Responses
- Views
- HTTP Session
- Validation
Frontend
- Blade Templates
- Localization
- JavaScript & CSS Scaffolding
- Compiling Assets (Laravel Mix)
Security
- Authentication
- API Authentication (Passport)
- Authorization
- Encryption
- Hashing
- Resetting Passwords
Digging Deeper
- Artisan Console
- Queues
- Package Development
- Task Scheduling
- Broadcasting
- Cache
- Collections
- Events
- File Storage
- helpers
- Notifications
Database
- Database Getting Started
- Database Query Builder
- Database Pagination
- Database Migrations
- Database Seeding
- Redis
Eloquent ORM
- Eloquent Getting Started
- Eloquent Relationships
- Eloquent Collections
- Eloquent Mutators
- Eloquent Serialization
Testing
- Testing Getting Started
- HTTP Tests
- Browser Tests (Laravel Dusk)
- Database Testing
- Mocking
- redirect
Official Packages
- Laravel Cashier
- Envoy Task Runner
- Laravel Scout
Notifications
Introduction
In addition to support for sending email, Laravel provides support for sending notifications across a variety of delivery channels, including mail, SMS (via Nexmo), and Slack. Notifications may also be stored in a database so they may be displayed in your web interface.
Typically, notifications should be short, informational messages that notify users of something that occurred in your application. For example, if you are writing a billing application, you might send an “Invoice Paid” notification to your users via the email and SMS channels.
Creating Notifications
In Laravel, each notification is represented by a single class (typically stored in the app/Notifications
directory). Don’t worry if you don’t see this directory in your application, it will be created for you when you run the make:notification
Artisan command:
This command will place a fresh notification class in your app/Notifications
directory. Each notification class contains a via
method and a variable number of message building methods (such as toMail
or toDatabase
) that convert the notification to a message optimized for that particular channel.
Sending Notifications
Using The Notifiable Trait
Notifications may be sent in two ways: using the notify
method of the Notifiable
trait or using the Notification
facade. First, let’s explore using the trait:
This trait is utilized by the default App\User
model and contains one method that may be used to send notifications: notify
. The notify
method expects to receive a notification instance:
{tip} Remember, you may use the
Illuminate\Notifications\Notifiable
trait on any of your models. You are not limited to only including it on yourUser
model.
Using The Notification Facade
Alternatively, you may send notifications via the Notification
facade. This is useful primarily when you need to send a notification to multiple notifiable entities such as a collection of users. To send notifications using the facade, pass all of the notifiable entities and the notification instance to the send
method:
Specifying Delivery Channels
Every notification class has a via
method that determines on which channels the notification will be delivered. Out of the box, notifications may be sent on the mail
, database
, broadcast
, nexmo
, and slack
channels.
{tip} If you would like to use other delivery channels such as Telegram or Pusher, check out the community driven Laravel Notification Channels website.
The via
method receives a $notifiable
instance, which will be an instance of the class to which the notification is being sent. You may use $notifiable
to determine which channels the notification should be delivered on:
Queueing Notifications
{note} Before queueing notifications you should configure your queue and start a worker.
Sending notifications can take time, especially if the channel needs an external API call to deliver the notification. To speed up your application’s response time, let your notification be queued by adding the ShouldQueue
interface and Queueable
trait to your class. The interface and trait are already imported for all notifications generated using make:notification
, so you may immediately add them to your notification class:
Once the ShouldQueue
interface has been added to your notification, you may send the notification like normal. Laravel will detect the ShouldQueue
interface on the class and automatically queue the delivery of the notification:
Mail Notifications
Formatting Mail Messages
If a notification supports being sent as an email, you should define a toMail
method on the notification class. This method will receive a $notifiable
entity and should return a Illuminate\Notifications\Messages\MailMessage
instance. Mail messages may contain lines of text as well as a “call to action”. Let’s take a look at an example toMail
method:
{tip} Note we are using
$this->invoice->id
in ourmessage
method. You may pass any data your notification needs to generate its message into the notification’s constructor.
In this example, we register a greeting, a line of text, a call to action, and then another line of text. These methods provided by the MailMessage
object make it simple and fast to format small transactional emails. The mail channel will then translate the message components into a nice, responsive HTML email template with a plain-text counterpart. Here is an example of an email generated by the mail
channel:
{tip} When sending mail notifications, be sure to set the
name
value in yourconfig/app.php
configuration file. This value will be used in the header and footer of your mail notification messages.
Other Notification Formatting Options
Instead of defining the “lines” of text in the notification class, you may use the view
method to specify a custom template that should be used to render the notification email:
In addition, you may return a mailable object from the toMail
method:
Error Messages
Some notifications inform users of errors, such as a failed invoice payment. You may indicate that a mail message is regarding an error by calling the error
method when building your message. When using the error
method on a mail message, the call to action button will be red instead of blue:
Customizing The Recipient
When sending notifications via the mail
channel, the notification system will automatically look for an email
property on your notifiable entity. You may customize which email address is used to deliver the notification by defining a routeNotificationForMail
method on the entity:
Customizing The Subject
By default, the email’s subject is the class name of the notification formatted to “title case”. So, if your notification class is named InvoicePaid
, the email’s subject will be Invoice Paid
. If you would like to specify an explicit subject for the message, you may call the subject
method when building your message:
Customizing The Templates
You can modify the HTML and plain-text template used by mail notifications by publishing the notification package’s resources. After running this command, the mail notification templates will be located in the resources/views/vendor/notifications
directory:
Markdown Mail Notifications
Markdown mail notifications allow you to take advantage of the pre-built templates of mail notifications, while giving you more freedom to write longer, customized messages. Since the messages are written in Markdown, Laravel is able to render beautiful, responsive HTML templates for the messages while also automatically generating a plain-text counterpart.
Generating The Message
To generate a notification with a corresponding Markdown template, you may use the --markdown
option of the make:notification
Artisan command:
Like all other mail notifications, notifications that use Markdown templates should define a toMail
method on their notification class. However, instead of using the line
and action
methods to construct the notification, use the markdown
method to specify the name of the Markdown template that should be used:
Writing The Message
Markdown mail notifications use a combination of Blade components and Markdown syntax which allow you to easily construct notifications while leveraging Laravel’s pre-crafted notification components:
Button Component
The button component renders a centered button link. The component accepts two arguments, a url
and an optional color
. Supported colors are blue
, green
, and red
. You may add as many button components to a notification as you wish:
Panel Component
The panel component renders the given block of text in a panel that has a slightly different background color than the rest of the notification. This allows you to draw attention to a given block of text:
Table Component
The table component allows you to transform a Markdown table into an HTML table. The component accepts the Markdown table as its content. Table column alignment is supported using the default Markdown table alignment syntax:
Customizing The Components
You may export all of the Markdown notification components to your own application for customization. To export the components, use the vendor:publish
Artisan command to publish the laravel-mail
asset tag:
This command will publish the Markdown mail components to the resources/views/vendor/mail
directory. The mail
directory will contain a html
and a markdown
directory, each containing their respective representations of every available component. You are free to customize these components however you like.
Customizing The CSS
After exporting the components, the resources/views/vendor/mail/html/themes
directory will contain a default.css
file. You may customize the CSS in this file and your styles will automatically be in-lined within the HTML representations of your Markdown notifications.
{tip} If you would like to build an entirely new theme for the Markdown components, simply write a new CSS file within the
html/themes
directory and change thetheme
option of your
Database Notifications
Prerequisites
The database
notification channel stores the notification information in a database table. This table will contain information such as the notification type as well as custom JSON data that describes the notification.
You can query the table to display the notifications in your application’s user interface. But, before you can do that, you will need to create a database table to hold your notifications. You may use the notifications:table
command to generate a migration with the proper table schema:
Formatting Database Notifications
If a notification supports being stored in a database table, you should define a toDatabase
or toArray
method on the notification class. This method will receive a $notifiable
entity and should return a plain PHP array. The returned array will be encoded as JSON and stored in the data
column of your notifications
table. Let’s take a look at an example toArray
method:
toDatabase
Vs. toArray
The toArray
method is also used by the broadcast
channel to determine which data to broadcast to your JavaScript client. If you would like to have two different array representations for the database
and broadcast
channels, you should define a toDatabase
method instead of a toArray
method.
Accessing The Notifications
Once notifications are stored in the database, you need a convenient way to access them from your notifiable entities. The Illuminate\Notifications\Notifiable
trait, which is included on Laravel’s default App\User
model, includes a notifications
Eloquent relationship that returns the notifications for the entity. To fetch notifications, you may access this method like any other Eloquent relationship. By default, notifications will be sorted by the created_at
timestamp:
If you want to retrieve only the “unread” notifications, you may use the unreadNotifications
relationship. Again, these notifications will be sorted by the created_at
timestamp:
{tip} To access your notifications from your JavaScript client, you should define a notification controller for your application which returns the notifications for a notifiable entity, such as the current user. You may then make an HTTP request to that controller’s URI from your JavaScript client.
Marking Notifications As Read
Typically, you will want to mark a notification as “read” when a user views it. The Illuminate\Notifications\Notifiable
trait provides a markAsRead
method, which updates the read_at
column on the notification’s database record:
However, instead of looping through each notification, you may use the markAsRead
method directly on a collection of notifications:
You may also use a mass-update query to mark all of the notifications as read without retrieving them from the database:
Of course, you may delete
the notifications to remove them from the table entirely:
Broadcast Notifications
Prerequisites
Before broadcasting notifications, you should configure and be familiar with Laravel’s event broadcasting services. Event broadcasting provides a way to react to server-side fired Laravel events from your JavaScript client.
Formatting Broadcast Notifications
The broadcast
channel broadcasts notifications using Laravel’s event broadcasting services, allowing your JavaScript client to catch notifications in realtime. If a notification supports broadcasting, you should define a toBroadcast
method on the notification class. This method will receive a $notifiable
entity and should return a BroadcastMessage
instance. The returned data will be encoded as JSON and broadcast to your JavaScript client. Let’s take a look at an example toBroadcast
method:
Broadcast Queue Configuration
All broadcast notifications are queued for broadcasting. If you would like to configure the queue connection or queue name that is used to the queue the broadcast operation, you may use the onConnection
and onQueue
methods of the BroadcastMessage
:
{tip} In addition to the data you specify, broadcast notifications will also contain a
type
field containing the class name of the notification.
Listening For Notifications
Notifications will broadcast on a private channel formatted using a {notifiable}.{id}
convention. So, if you are sending a notification to a App\User
instance with an ID of 1
, the notification will be broadcast on the App.User.1
private channel. When using Laravel Echo, you may easily listen for notifications on a channel using the notification
helper method:
Customizing The Notification Channel
If you would like to customize which channels a notifiable entity receives its broadcast notifications on, you may define a receivesBroadcastNotificationsOn
method on the notifiable entity:
SMS Notifications
Prerequisites
Sending SMS notifications in Laravel is powered by Nexmo. Before you can send notifications via Nexmo, you need to install the nexmo/client
Composer package and add a few configuration options to your config/services.php
configuration file. You may copy the example configuration below to get started:
The sms_from
option is the phone number that your SMS messages will be sent from. You should generate a phone number for your application in the Nexmo control panel.
Formatting SMS Notifications
If a notification supports being sent as a SMS, you should define a toNexmo
method on the notification class. This method will receive a $notifiable
entity and should return a Illuminate\Notifications\Messages\NexmoMessage
instance:
Unicode Content
If your SMS message will contain unicode characters, you should call the unicode
method when constructing the NexmoMessage
instance:
Customizing The “From” Number
If you would like to send some notifications from a phone number that is different from the phone number specified in your config/services.php
file, you may use the from
method on a NexmoMessage
instance:
Routing SMS Notifications
When sending notifications via the nexmo
channel, the notification system will automatically look for a phone_number
attribute on the notifiable entity. If you would like to customize the phone number the notification is delivered to, define a routeNotificationForNexmo
method on the entity:
Slack Notifications
Prerequisites
Before you can send notifications via Slack, you must install the Guzzle HTTP library via Composer:
You will also need to configure an “Incoming Webhook” integration for your Slack team. This integration will provide you with a URL you may use when routing Slack notifications.
Formatting Slack Notifications
If a notification supports being sent as a Slack message, you should define a toSlack
method on the notification class. This method will receive a $notifiable
entity and should return a Illuminate\Notifications\Messages\SlackMessage
instance. Slack messages may contain text content as well as an “attachment” that formats additional text or an array of fields. Let’s take a look at a basic toSlack
example:
In this example we are just sending a single line of text to Slack, which will create a message that looks like the following:
Customizing The Sender & Recipient
You may use the from
and to
methods to customize the sender and recipient. The from
method accepts a username and emoji identifier, while the to
method accepts a channel or username:
You may also use an image as your logo instead of an emoji:
Slack Attachments
You may also add “attachments” to Slack messages. Attachments provide richer formatting options than simple text messages. In this example, we will send an error notification about an exception that occurred in an application, including a link to view more details about the exception:
The example above will generate a Slack message that looks like the following:
Attachments also allow you to specify an array of data that should be presented to the user. The given data will be presented in a table-style format for easy reading:
The example above will create a Slack message that looks like the following:
Markdown Attachment Content
If some of your attachment fields contain Markdown, you may use the markdown
method to instruct Slack to parse and display the given attachment fields as Markdown formatted text:
Routing Slack Notifications
To route Slack notifications to the proper location, define a routeNotificationForSlack
method on your notifiable entity. This should return the webhook URL to which the notification should be delivered. Webhook URLs may be generated by adding an “Incoming Webhook” service to your Slack team:
Notification Events
When a notification is sent, the Illuminate\Notifications\Events\NotificationSent
event is fired by the notification system. This contains the “notifiable” entity and the notification instance itself. You may register listeners for this event in your EventServiceProvider
:
{tip} After registering listeners in your
EventServiceProvider
, use theevent:generate
Artisan command to quickly generate listener classes.
Within an event listener, you may access the notifiable
, notification
, and channel
properties on the event to learn more about the notification recipient or the notification itself:
Custom Channels
Laravel ships with a handful of notification channels, but you may want to write your own drivers to deliver notifications via other channels. Laravel makes it simple. To get started, define a class that contains a send
method. The method should receive two arguments: a $notifiable
and a $notification
:
Once your notification channel class has been defined, you may simply return the class name from the via
method of any of your notifications: