HHarrison GuoOct 12 · 14 min readObservability and Billing for AI API Calls: A T-Shaped ArchitectureAdding AI API calls to an existing backend is where most teams' observability and billing instincts break. The calls look similar to any other RPC — send a JSON request, receive a JSON response. The dharrisonsec.hashnode.dev
HHarrison GuoOct 8 · 8 min readUse-After-Free Is a Lifetime Bug, Not a C BugUse-after-free gets taught as a C problem. The lesson lands as "C lets you touch freed memory, so C is dangerous, so use a safer language." That is true and it is also the wrong lesson, because it hidharrisonsec.hashnode.dev
AAvyay KachhiaSep 18 · 18 min readBuilding PrismQTC: How I Built an Autonomous B2B Quote-to-Cash & Pricing Governance Platform Most B2B software treats sales as a sequence of isolated, static records: a quotation generated as an un-editable PDF, followed by disconnected email chains, manual margin approvals in spreadsheets, davyay-dev.hashnode.dev
AAyush JainSep 14 · 15 min readJWT Authentication in Node.js Explained SimplySome time back, an old school friend of mine got me invited to a formal VIP party in Mumbai. It was not exactly his family's party, it was a proper high-end business party, at the Taj hotel no less, bayushjjainn.hashnode.dev
AAyush JainSep 13 · 8 min readArray Flatten in JavaScriptEvery time I pack for a trip, my suitcase is never just a big pile of loose stuff. It is organised into pouches. One pouch for chargers and cables, one for toiletries, a little pocket for documents, cayushjjainn.hashnode.dev
AAyush JainSep 13 · 8 min readJavaScript Modules: Import and Export ExplainedLet me tell you about my one big notebook. I keep a single thick unruled spiral notebook for everything in my branch. Every electrical theory subject goes into it, AC Machine II, Power Electronics, Poayushjjainn.hashnode.dev
AAyush JainSep 13 · 7 min readHow Node.js Handles Multiple Requests with a Single ThreadLast year I had to get some details fixed on my Aadhaar card, my phone number, my father's name, a few things I knew I would need in my final year and during placements, especially once an offer letteayushjjainn.hashnode.dev
AAyush JainAug 25 · 5 min read Template Literals in JavaScriptYou know those wedding invitation cards, or those forwarded birthday messages on WhatsApp, where everything is already written and there is just a blank left for your name? "Dear ______, you are cordiayushjjainn.hashnode.dev
AAyush JainAug 25 · 7 min readDestructuring in JavaScriptOne evening in my hostel, the mess food was thik thaak at best, honestly not my favorite, and I was properly hungry that day. So I did the obvious thing, opened Zomato and ordered aloo paratha, curd, ayushjjainn.hashnode.dev
AAyush JainAug 25 · 11 min readSetting Up Your First Node.js Application Step by StepBack in 2023, right in the middle of my JEE prep, I hit a point where I could not look at one more math question, one more chemistry equation, one more physics problem. I needed a break. And for some ayushjjainn.hashnode.dev
