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⚡ AI Lessons

Dev.to · Budi Widhiyanto
🔧 Backend Engineering
⚡ AI Lesson
1w ago
Testing HL7-to-FHIR Pipelines Without a Hospital: Mocking HAPI FHIR with respx
You can't spin up a maternity ward in CI. But you can get 274 tests and 90% coverage without...

Dev.to · Budi Widhiyanto
⚡ AI Lesson
2w ago
One Pipeline, Two Continents: Adding EU FHIR Profiles to an Australian Healthcare Integration
The European Health Data Space (EHDS) regulation requires EHR systems operating in the EU to exchange...

Dev.to · Budi Widhiyanto
🔧 Backend Engineering
⚡ AI Lesson
3w ago
Why I Put Mirth Connect in Front of FastAPI Instead of Parsing HL7 in Python
When I started building my Maternity HL7-to-FHIR Pipeline, my first instinct was to do everything in...

Dev.to · Budi Widhiyanto
⚡ AI Lesson
1mo ago
Maternity HL7-to-FHIR Pipeline: Bridging Legacy Hospital Messages to Modern Healthcare APIs
How It Started A few months ago, I was browsing remote FHIR engineer roles in Australia....

Dev.to · Budi Widhiyanto
☁️ DevOps & Cloud
⚡ AI Lesson
1mo ago
Our GCP daily cost dropped 80% in six weeks, here is every change we made
When our project manager forwarded the May 2026 invoice, the number had tripled from where it was two...

Dev.to · Budi Widhiyanto
🤖 AI Agents & Automation
⚡ AI Lesson
4mo ago
How I Built an AI Agent That Writes FHIR Templates in Hours Instead of Days
3-4 days to write one JSON template. Sometimes a full week. It was a Tuesday night and I had the...

Dev.to · Budi Widhiyanto
🏗️ Systems Design & Architecture
⚡ AI Lesson
5mo ago
Data Fetching Patterns Every Developer Should Know (And When to Actually Use Them)
About a year ago, I was working on a payment app. Solid architecture, clean API design, decent...

Dev.to · Budi Widhiyanto
🔧 Backend Engineering
⚡ AI Lesson
5mo ago
How a "Simple" QR Code Generator Ate All My RAM: A Tale of 50,000 QR Codes
Sometimes the simplest tasks can become the biggest headaches. Here's how I learned that data size...

Dev.to · Budi Widhiyanto
🏗️ Systems Design & Architecture
⚡ AI Lesson
11mo ago
Relearning Microservices with a Weekend Mini eCommerce Build
One rainy weekend I decided to refresh my microservices skills by building a small eCommerce platform...
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