Developer Foundry 2.0 – Team H - Slack Notification Integration

This project is a Slack Notification Service built to send real-time updates to Slack whenever users interact with tasks in the system.

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Features

• Task Creation Notification – Sends a Slack message when a new task is created.
• Task Update Notification – Sends a message when a task is updated.
• Task Status Change Notification – Notifies the team whenever the status of a task changes (e.g., In Progress → Completed).

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Tech Stack

• Go (Golang) – Implemented using the standard library
• PostgreSQL – Database for tasks and notifications
• Redis – Used for caching and queueing
• Koyeb – Hosting platform

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System Design

How It Works

1. Client sends a request to create, update, or change a task.
2. Cache stores temporary data for fast retrieval.
3. Scheduler manages timing and background processing of notifications.
4. Database persists all task information (task id, task name, assigned_to, due_at, created_at, updated_at).
5. Redis Queue holds notification jobs before they are sent.
6. Slack Server receives the final payload and delivers the message to the Slack channel.

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Environment Variables

The service requires the following environment variables to be set:

DATABASE_URL=postgres://user:password@localhost:5432/slack_service
REDIS_URL=redis://localhost:6379
SLACK_BOT_TOKEN=xxxxx
PORT=8080

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API Endpoints

Method	Endpoint	Description
POST	/tasks	Create a new task (triggers Slack notification)
PATCH	/tasks/{id}	Update task details (triggers notification)

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Deployment

The service is hosted on Koyeb.

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👨‍💻 Team Members

• Oluwadarasimi Temitope Shina-kelani – Backend Developer (Golang)
• Stephen Basoah Dankyi – Backend Developer (Golang)