News, tutorials, and insights from the LocalStack team on cloud emulation, product showcases, and local development practices.https://blog.localstack.cloud/https://blog.localstack.cloud/testing-serverless-apps-locally-aws-sam-local-vs-localstack/https://blog.localstack.cloud/testing-serverless-apps-locally-aws-sam-local-vs-localstack/Learn how to test serverless apps locally using AWS SAM Local and LocalStack’s lstk sam. This tutorial walks through a Lambda Authorizer, highlighting SAM Local's function-level testing capabilities against LocalStack's high-fidelity emulation for testing serverless integrations.Tue, 26 Aug 2025 00:00:00 GMT