How to Build Custom Logging for AWS Applications with Slack Integration

This article explains how to build a custom logging system for AWS applications using Lambda to filter logs with markers (e.g., [CRITICAL], [ALERT]), send real-time notifications to Slack, and store logs in DynamoDB for auditing. It provides a step-by-step guide, sample code, security tips, and scalability benefits to improve monitoring and team collaboration.

Effective logging is critical for monitoring and troubleshooting applications deployed on AWS. However, with high log volumes, identifying critical issues in CloudWatch can be challenging. Integrating logs with team communication tools like Slack and storing them for audits can streamline incident response and compliance. This article outlines how to build a custom logging system using AWS Lambda to filter logs with specific markers, send real-time Slack notifications, and store logs in DynamoDB. This approach, born from a need to quickly detect and act on critical errors, provides a scalable solution ...