Building a Serverless TODO API with AWS SAM, Lambda, DynamoDB and LocalStack

📰 Dev.to · Emmanuel Ulu

Learn to build a serverless TODO API using AWS SAM, Lambda, and DynamoDB with LocalStack, saving on AWS costs

intermediate Published 13 Mar 2026
Action Steps
  1. Install LocalStack to simulate AWS services locally
  2. Create a new AWS SAM project using the CLI
  3. Configure Lambda functions and API Gateway using AWS SAM
  4. Set up a DynamoDB database for storing TODO items
  5. Test the TODO API using LocalStack and AWS SAM
Who Needs to Know This

Backend developers and DevOps engineers can benefit from this tutorial to create scalable and cost-effective serverless APIs

Key Insight

💡 Use LocalStack to simulate AWS services locally and reduce costs when building serverless applications

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🚀 Build a serverless TODO API with AWS SAM, Lambda, and DynamoDB using LocalStack! 📝

Key Takeaways

Learn to build a serverless TODO API using AWS SAM, Lambda, and DynamoDB with LocalStack, saving on AWS costs

Full Article

When I started learning serverless, my biggest fear wasn't the technology, it was the AWS bill. As...
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