I still remember the first time I opened a legacy codebase and felt like I’d walked into the Death Star’s trash compactor. A single User class was juggling validation, hashing passwords, sending welcome emails, persisting to the database, and even generating PDF reports. Changing one tiny rule—like “users must now confirm their email...
Original Japanese article: Glue REST CatalogとS3TablesのIAMとLake Formationの挙動を確かめる
I'm Aki, an AWS Community Builder (@jitepengin).
In my previous...
In the fast-moving world of cryptocurrency, market data changes every second — prices fluctuate, trades execute, and volumes shift continuously. Capturing this stream of real-time data and transforming it into meaningful insights requires a robust and scalable pipeline. In this project, I built a complete real-time crypto market data pipeline that captures, streams, stores, and visualizes live ...
When an autonomous agent gets an email address of its own, the first question your security team asks isn't "can it send mail?" It's "can you prove, six months from now, exactly what it said and to whom?"
That's a different problem from "does it work." A demo that fires off a few support replies looks great in a sprint review. But the moment a real customer says "your bot promised me a ...
Rendering a big image on iOS is one of those things that looks trivial until your app gets killed by the OS mid-export. CGContext, draw, makeImage(), done — except the moment the output gets large, that innocent-looking pipeline quietly asks for gigabytes of RAM and iOS terminates you.
I hit this wall building
Most multi-tenant SaaS apps that send email do it from one shared identity. There's a notifications@yourapp.com, every customer's mail flows through it, and the tenant is just a from_name you stamp on the subject line or a footer you swap out. That's fine until it isn't — until Tenant A's spam complaints drag down Tenant B's deliverability, until a reply from a custome...