gpressutto5 / Laravel Slack

Based on illuminate/mail

About Laravel Slack

Slack notification for Laravel as it should be. Easy, fast, simple and highly testable. Since it uses On-Demand Notifications, it requires Laravel 5.5 or higher.

Installation

Require this package in your composer.json and update your dependencies:

composer require gpressutto5/laravel-slack

Since this package supports Laravel's Package Auto-Discovery you don't need to manually register the ServiceProvider.

After that, publish the configuration file:

php artisan vendor:publish --provider="Pressutto\LaravelSlack\ServiceProvider"

You're gonna need to configure an "Incoming Webhook" integration for your Slack team.

Configuration

On the published configuration file config/laravel-slack.php you can change options like the Webhook URL, the default channel, the application name and the application image.

For security reasons you shouldn't commit your Webhook URL, so this package will, by default, use the environment variable SLACK_WEBHOOK_URL. You can just add it to your .env file. Like this:

SLACK_WEBHOOK_URL=https://hooks.slack.com/services/XXXXXXXXX/XXXXXXXXX/XXXXXXXXXXXXXXXXXXXXXXXX

Usage

You can send simple Slack messages like this:

• Send message to a channel:

\Slack::to('#finance')->send('Hey, finance channel! A new order was created just now!');

• Send message to an user:

\Slack::to('@joe')->send("Hey Joe! It looks like you've forgotten your password! Use this token to recover it: as34bhdfh");

• Send message to multiple users:

\Slack::to(['@zoe', '@amy', '@mia'])->send('I swear, honey, you are the only one... ❤️');
//         ↑  look at this array  ↑

• Mix it up:

\Slack::to('#universe', '@god', '#scientists')->send(':thinking_face:');
//         ↑ what? I don't need that array? ↑

• No recipient:

\Slack::send('Default message to the default channel, set on config/laravel-slack.php.');

• Send SlackMessage objects:

class HelloMessage extends SlackMessage
{
    public $content = "Hey bob, I'm a sending a custom SlackMessage";
    public $channel = '@bob';
}
\Slack::send(new SlackMessage());

• Send to user:

  You can use any object as a recipient as long as they have the property slack_channel. If you are using Models you can just create the column slack_channel and store the @username or the #channel name there. If you already store it but on a different column you can create a method getSlackChannelAttribute.

class User extends Model
{
    public function getSlackChannelAttribute(): string
    {
        return $this->attributes['my_custom_slack_channel_column'];
    }
}
\Slack::to(User::where('verified', true))->send('Sending message to all verified users!');

Testing

When testing you can easily mock the Slack service by calling Slack::fake() it will return a SlackFake object that won't send any message for real and will save them to an array. You can get this array by calling Slack::sentMessages().

This class also has some helper methods for you to use when testing:

• Assert that at least one message with the content 'fake' was sent:

Slack::assertSent(function (SlackMessage $message) {
    return $message->content === 'fake';
});

• Assert that at least two messages with the content being a string longer than 5 characters were sent:

Slack::assertSent(function (SlackMessage $message) {
    return strlen($message->content) >= 100;
}, 2);

• Assert that exactly five messages where the content content contains the word 'test' were sent:

Slack::assertSent(function (SlackMessage $message) {
    return strpos($message->content, 'test') !== false;
}, 5, true);

• Assert that exactly three messages were sent:

Slack::assertSentCount(3);

Since this package uses illuminate/notifications to send notifications you can mock the Notification service instead of the Slack one and use the class NotificationFake in your tests. Take a look.