FAFaraz Ahmadinstadiasoft.hashnode.dev·6h ago · 7 min readBuild an SPF, DKIM & DMARC Checker API with Node.jsAn SPF, DKIM and DMARC checker needs to do more than report whether three DNS records exist. A domain can publish SPF yet have no DMARC policy, sign mail with DKIM but use an unexpected selector, or h00
TTgValidatorintgvalidator.hashnode.dev·14h ago · 6 min readValidating E.164 Phone Number Registration Status in Distributed Messaging ArchitecturesIn distributed messaging architectures, the ability to verify whether a user-provided phone number is registered on a specific platform is a common requirement for notification services. However, movi00
WWaLookupinwalookup.hashnode.dev·14h ago · 6 min readArchitecting Synchronous Registration Signal Verification for Messaging EndpointsIn high-throughput messaging systems, the transition from optimistic delivery to deterministic verification is a critical architectural milestone. Many systems initially adopt a "fire-and-forget" appr00
PPDF4meinpdf4me1.hashnode.dev·23h ago · 7 min readFrom Inbox to Expense Report: Classifying, Extracting, and Merging Receipts in Three API CallsOriginally published on Dev.to: From Inbox to Expense Report Somewhere in your company right now, someone is opening twelve emails to find seven receipts, squinting at a phone photo of a fuel pump dis00
DPDaniel Pertuincogniprep.hashnode.dev·1d ago · 7 min read3.9 MB of answer keys, one anonymous CDN GET awayI went looking for something else and found this line in a loader: const res = await fetch(`/game-questions/${bankId}.json`); That is a relative fetch from the browser to a file in public/. Next.js c00
FJFrancisco José Fernández-Medina Lópezinplanvortex.hashnode.dev·1d ago · 7 min readCharacter limits across social APIs: .length lies, and it lies both ways"👨👩👧👦".length is 11. That emoji is one character on screen, seven Unicode code points, and 25 bytes on the wire. Which of those numbers a social network measures your post against depends on th00
ANAPITube News APIinapitube.hashnode.dev·1d ago · 11 min readA week of NVIDIA news is 5,718 articles. My filter kept 161I wanted a small script that pings me when something real happens to NVIDIA — an earnings surprise, an export-control change, a leadership move. Not a feed. A handful of lines a day I can actually rea00
PSProwess Softinprowesssoft-tech.hashnode.dev·1d ago · 2 min readDesigning a Scalable MuleSoft Integration Architecture: 5 Principles That MatterModern enterprise integration architecture needs to solve a different problem than traditional middleware. It is not simply: System A → Middleware → System B A modern environment may instead look like00
SDsohom dasinsohomdas.hashnode.dev·2d ago · 8 min readHow Do I Set Up Notify for Sending Transactional Emails from My App?Setting up Notify is a short, linear process: create an account, generate an API key, verify a sending domain, then call the send endpoint from your backend. The whole thing is maybe fifteen minutes o00
JTJAY TANKinjaytank.hashnode.dev·1d ago · 10 min read Your API's biggest hole isn't injection - it's the ID in the URLGET /api/invoices/1042 returns your invoice. You're logged in, the token is valid, the response is a clean 200. Change one character - GET /api/invoices/1041 - and it returns someone else's invoice. S00
