How to Stream AI Agent Progress to a UI
Learn to stream AI agent progress to a UI with typed events, SSE or WebSockets, reconnects, approvals, failures, and a reliable terminal state.
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I handle the software.
I'm Samuel Fajreldines, a senior software engineer. Growing U.S. businesses hire my team to become their software department, not a vendor they rehire every quarter. I set the technical direction, my team builds and ships, and I stay accountable for everything that goes out.
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Latest articles
In-depth guides and tutorials on JavaScript & TypeScript, Node.js, AI, DevOps and Serverless by Samuel Fajreldines.
Articles
Why Don't CRM and Inventory Numbers Match?
Find out why CRM and inventory show different numbers, how to trace one order, and when to fix the process, integration, or ownership for a clearer operation.
How to Test Retry Logic in JavaScript Without Waiting
Test JavaScript retry logic without real delays by checking attempts, backoff, pending Promises, and fake-clock cleanup for deterministic tests in CI.
How to Type Data Added by Express Middleware in TypeScript
Learn how to type data added by Express middleware in TypeScript with declaration merging, runtime checks, and route-specific boundaries.
When Should a Small Business Hire a Software Developer?
Find out when your small business needs a developer, when a project is enough, and when ongoing software ownership makes sense.
