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Slobodan Stojanović
Slobodan Stojanović
Slobodan Stojanović is CTO of Cloud Horizon, a software development studio based in Montreal Canada, and CTO of Vacation Tracker, a simple Slack-based leave management system for teams. He is based in Belgrade and is the JS Belgrade meetup co-organizer. Slobodan is the AWS Serverless Hero, Claudia.js core team member, and co-author of “Serverless Applications with Node.js” book, published by Manning Publications.
Vacation Tracker, Serbiaslobodan.meslobodan_stojanovic
React Summit 2023React Summit 2023
28 min
Advanced GraphQL Architectures: Serverless Event Sourcing and CQRS
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.
advancedgraphqlserverlessapi development
Node Congress 2021Node Congress 2021
245 min
Building Serverless Applications on AWS with TypeScript
Workshop
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:
        - How to set up a serverless project with TypeScript and CDK
        - How to write a testable Lambda function with hexagonal architecture
        - How to connect a function to a DynamoDB table
        - How to create a serverless API
        - How to debug and test a serverless function
        - How to organize and grow a serverless application
Materials referred to in the workshop:
https://excalidraw.com/#room=57b84e0df9bdb7ea5675,HYgVepLIpfxrK4EQNclQ9w
DynamoDB blog Alex DeBrie: https://www.dynamodbguide.com/
Excellent book for the DynamoDB: 
https://www.dynamodbbook.com/
https://slobodan.me/workshops/nodecongress/prerequisites.html


typescriptnode.jsawsserverless
TestJS Summit - January, 2021TestJS Summit - January, 2021
28 min
Writing Testable Serverless Apps Using Hexagonal Architecture
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?


testingserverlessarchitecture