Writing Testable Serverless Apps Using Hexagonal Architecture

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Slobodan Stojanović

Building Serverless Applications on AWS with TypeScript

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From 1 to 101 Lambda Functions in Production: Evolving a Serverless Architecture

Advanced GraphQL Architectures: Serverless Event Sourcing and CQRS

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GraphQL is a powerful and useful tool, especially popular among frontend developers. It can significantly speed up app development and improve application speed, API discoverability, and documentation. GraphQL is not an excellent fit for simple APIs only - it can power more advanced architectures. The separation between queries and mutations makes GraphQL perfect for event sourcing and Command Query Responsibility Segregation (CQRS). By making your advanced GraphQL app serverless, you get a fully managed, cheap, and extremely powerful architecture.

This workshop teaches you the basics of serverless application development with TypeScript. We'll start with a simple Lambda function, set up the project and the infrastructure-as-a-code (AWS CDK), and learn how to organize, test, and debug a more complex serverless application. Table of contents:<ul><li>        - How to set up a serverless project with TypeScript and CDK</li><li>        - How to write a testable Lambda function with hexagonal architecture</li><li>        - How to connect a function to a DynamoDB table</li><li>        - How to create a serverless API</li><li>        - How to debug and test a serverless function</li><li>        - How to organize and grow a serverless application Materials referred to in the workshop: <a href="https://excalidraw.com/#room=57b84e0df9bdb7ea5675,HYgVepLIpfxrK4EQNclQ9w" target="_blank">https://excalidraw.com/#room=57b84e0df9bdb7ea5675,HYgVepLIpfxrK4EQNclQ9w </a>DynamoDB blog Alex DeBrie: https://www.dynamodbguide.com/ Excellent book for the DynamoDB: <a href="https://www.dynamodbbook.com/" target="_blank">https://www.dynamodbbook.com/ https://slobodan.me/workshops/nodecongress/prerequisites.html </a></li></ul> <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>

According to many polls, testing serverless applications and fear of the cloud vendor lock-in are among the top five challenges organizations face when adopting serverless. We often hear that using serverless effectively requires a mind shift. But what does that mean? Do we need new tools and strategies for testing serverless applications, or can we use existing tools we already use for our non-serverless applications? And what about cloud vendor lock-in? Is that a real thing or just a fictional story that scares people away from serverless? Can we decrease a risk of vendor lock-in using a well-known architecture, such as hexagonal architecture? <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>