Trigger Slack Webhook

Overview

This repository contains Salesforce Apex code designed to facilitate the sending of messages from Salesforce to Slack using Slack Webhooks. The integration is encapsulated into two main components: an Apex Class (TriggerSlackWebhook) and its corresponding test class (TriggerSlackWebhookTest).

Components

Apex Class: TriggerSlackWebhook

The TriggerSlackWebhook class is designed to be used as a callable method within Salesforce that interacts with Slack via HTTP callouts. It is equipped to handle multiple requests simultaneously, each potentially targeting different Slack channels or messages.

Features

• Invocable Method: The sendToSlack method can be invoked from Salesforce flows or processes, making it easy to integrate with various business workflows.
• Customizable Message Sending: The method accepts a list of requests, where each request includes the Slack webhook URL, the message content, the Salesforce record ID, and optionally, the Slack channel name.

Method Details

• sendToSlack(List<Request> requests): Processes each request to send a message to the specified Slack webhook endpoint. The message payload is formatted as JSON to meet Slack's requirements.

Apex Test Class: TriggerSlackWebhookTest

The test class TriggerSlackWebhookTest ensures the functionality of TriggerSlackWebhook via unit tests. It uses mock callouts to simulate interactions with Slack, verifying both the request payload and the behavior of the sendToSlack method under various conditions.

Test Features

• HttpCalloutMock Implementation: Simulates Slack's API to validate the integration without making real HTTP requests.
• Response Validation: Ensures that the message formation and endpoint configuration are correct.

Integration with Slack

To integrate Salesforce with Slack:

1. Configure Webhooks in Slack: Set up incoming webhooks in your Slack workspace to generate endpoints that Salesforce can post messages to.
2. Set Up the Apex Class: Deploy TriggerSlackWebhook in your Salesforce org.
3. Invoke from a Salesforce Process: Use Flow Builder or another automated method to invoke sendToSlack based on specific triggers within Salesforce.

Usage

To send a message to Slack, create an instance of Request, populate it with necessary details such as the webhook URL, message, and record ID, and pass it to sendToSlack.

Example:

TriggerSlackWebhook.Request myRequest = new TriggerSlackWebhook.Request();
myRequest.endpoint = 'https://hooks.slack.com/services/TXXXX/BXXXX/XXXX';
myRequest.message = 'Hello, Salesforce!';
myRequest.recordId = '001xx000003DHPx';
TriggerSlackWebhook.sendToSlack(new List<TriggerSlackWebhook.Request>{ myRequest });