Serverless best practices: flags, monitoring, demo
New write-ups show using feature flags in AWS Lambda for controlled rollouts, pairing automated runtime monitoring and health checks for self-healing, and a step-by-step serverless expense-tracker demo to showcase end-to-end patterns. Together they form a tidy template for production-grade serverless projects with rollback, observability, and cost control. (configcat.com) (podcast.businesscompassllc.com) (podcast.businesscompassllc.com)
ConfigCat’s how-to on Lambda was published October 13, 2023 and is authored by Chavez Harris, and the ConfigCat client offers a free tier for experimentation referenced in that post. (configcat.com)) ConfigCat maintains a.NET SDK and companion example repos — a.NET SDK reference and an ASP.NET Core sample are published in the ConfigCat docs and GitHub organization to support.NET integrations. (configcat.com)) ConfigCat also lists AWS-specific feature-flag capabilities (targeting, percentage rollouts, segmentation) and advertises availability on the AWS Marketplace for teams wanting centralized flag management across AWS services. (configcat.com)) Business Compass published the “Automating Lambda Runtime Monitoring and Health Checks on AWS” guide on March 26, 2026 and explicitly walks through adding CloudWatch custom metrics, alarms, and active automated function tests to detect degradations. (knowledge.businesscompassllc.com)) That same monitoring guide calls out concrete signals to track — duration percentiles, error-rate patterns, memory spikes and throttling — and recommends provisioned concurrency and connection pooling as mitigations for cold-start and initialization overhead. (knowledge.businesscompassllc.com)) Business Compass’s March 26, 2026 step‑by‑step expense‑tracker tutorial prescribes concrete setup steps: enable MFA on the root account, create a dedicated IAM developer user with least‑privilege roles, configure billing alerts and CloudWatch alarms, install and test the AWS CLI with aws sts get-caller-identity, and prefer regions such as us‑east‑1 or us‑west‑2. (knowledge.businesscompassllc.com)) The expense‑tracker design uses S3 for durable storage and multiple Lambda functions for processing, and the guide recommends CloudWatch billing alerts plus detailed billing reports to control costs while developing and running the demo. (knowledge.businesscompassllc.com)) Community examples and companion code exist for both patterns: a ConfigCat Lambda sample repo and several open-source serverless expense‑tracker implementations combining Lambda, S3, DynamoDB and CloudWatch are available on GitHub for direct reuse and study. (github.com))
