Laravel Slack

This package allows you to easily compose and send Slack messages from Laravel applications

Installation

Step-1:

composer require aranyasen/laravel-slack

Step-2: Publish the config:

php artisan vendor:publish --provider=Aranyasen\\LaravelSlack\\SlackServiceProvider

It creates config/laravel-slack.php.

Step-3: Add parameters SLACK_WORKSPACE and SLACK_TOKEN in .env
(See reference below on how to generate a Slack API token)

Usage

// Send a simple message to a channel, say "some-channel"
(new SlackNotification())
    ->channel('some-channel')
    ->text("Hello!")
    ->send();

// Send a section (Ref: https://api.slack.com/reference/block-kit/blocks#section)
(new SlackNotification())
    ->channel('some-channel')
    ->section() // Starts a section
    ->fields() // Starts a field in this section
    ->markdown(":fire: @here This is an emergency :fire:")
    ->endFields()
    ->endSection()
    ->send();

// Send a raw JSON block (example from https://api.slack.com/block-kit/building#block_basics)
(new SlackNotification())
    ->channel('some-channel')
    ->block([
      "type" => "section",
      "text" => [
        "type" => "mrkdwn",
        "text" => "New Paid Time Off request from <example.com|Fred Enriquez>\n\n<https://example.com|View request>",
      ],
    ])
    ->send();

// Compose a message and dump the JSON that'll be sent to Slack. Useful for debugging.
(new SlackNotification())
    ->channel('some-channel')
    ->text("Hello!")
    ->dump();

// Upload a file
(new SlackNotification())
    ->channel('some-channel')
    ->file($filePath, 'Some filename')
    ->upload();

// Optionally, a title, or an accompanying message can be added with a file
(new SlackNotification())
    ->channel('some-channel')
    ->file($filePath, 'Some filename')
    ->withInitialComment('some comment')
    ->withTitle('some title')
    ->upload();

APIs:

channel() -> Channel
header() -> Create a header section
context() -> A small footer text
divider() -> A horizontal line
section() / endSection() --> A section block
lists() -> List of items
field() / endfield() --> Inside section
markdown() -> A markdown block, allowed only inside a section
block() -> Pre-composed block
send() -> Send to Slack
dump() -> Dump the final JSON that'd be sent to Slack API file() -> Upload a file
withInitialComment() -> Add a message with a file upload withTitle() -> Add a title with file upload

Testing:

Invoke SlackNotification::fake() to ensure HTTP requests to Slack are mocked. Internally it uses Laravel's Http::fake(), so all available Http::assert* methods can be used for assertions. Example:

SlackNotification::fake();
(new SlackNotification())
    ->channel('channel-1')
    ->send();
Http::assertSent(static fn(Request $request) => $request['channel'] === 'channel-1');

References:

To create a Slack API token

Visit https://api.slack.com/apps
If no app is present, create an app (you may select "from scratch")
If the app was created earlier, select the app under App Name
On the left pane, under "Features" click "OAuth & Permissions"
Under Scopes > Bot Token Scopes, click Add an OAuth Scope
Add these scopes: chat.write and chat.write.public.
(note: channels.read, users.read may be needed in future versions of this package, but not now)
Click "reinstall your app" in the yellow bar that appears above
In the dropdown "Search for a channel", select a channel. Any channel would do - won't matter now.
Allow it
Copy the "Bot User OAuth Token" and share