Ranjan.sol

Read “How I Debugged a Cryptic "400 Bad Request" in the Moloni API in detail “ on Medium: @ranjanmuz01012003/how-i-debugged-a-cryptic-400-bad-request-in-the-moloni-api-and-learned-less-is-more-078f0588f54d" target="_blank" rel="nofollow noopener">medium.com/@ranjanmuz0101…

Sunday night! How the heck am I supposed to sleep now??!! RCB💪

Debugging infra alone sucks. Shareable workspaces coming to cloudgrep. Invite others into your VM. Fix stuff together. Soon.

A good platform for learning and practicing devops. Have a look at it once ✨

@flo_indie Keep shipping 👍🏻

@ranjann_sol Nope! you think it's because I use Netlify 🤔

Is anyone facing deployment issues on vercel? It seems vercel is down currently. Deployment is not active. #vercel #deployment

@flo_indie Okay😁 , let me change my mind from 💯 to most of the developers 👍🏻

@andreihasna Hahaha, Exactly agreed 💯.

@ranjann_sol vercel down day is when you find out how many indie hackers are actually shipping vs just posting about shipping

@VanillaCache Yup, i checked it there as well. It is down now.

@ranjann_sol Yea, partial outage on APIs and Dashboard

@Old_monk_op @rasmalai Rust

@rasmalai Go

High traffic counters (likes, views, leaderboard, gaming ) shouldn’t hit DB every time. Use cache write-back: Update Redis Track dirty keys in a ring buffer Async bulk write to DB This is the Dirty Key Ring optimization pattern. #Redis #SystemDesign #BackendEngineering

Good strategy is about excellent execution. Bad strategy is about fancy slides.

What platform components designing looks like for me #DevOp #API #SystemDesign #UIUX

Give it a try ✨

Chased a ghost. No logs Nosweeper.Session expired instantly.Root cause: multiple backend instances, shared Redis, and time.Now().One instance thought the session was dead and published the event.Mine just listened. Fix:use Redis TIME as the single source of truth

Active vs Inactive Mandate (GoCardless) :) Active mandate: Customer’s direct debit authorization is live — you can collect payments from their bank. Inactive mandate: Authorization is not usable (still setting up, failed, cancelled, or expired) — you can’t collect payments.

Building disscusion system The scaling approach..... REST APIs for threads, comments, votes • Sharded DBs (question_id as shard key) • Writes → DB → events (async) • Redis + replicas for fast reads • WebSockets/SSE only for notifications • DB remains the source of truth

Read “How I Debugged a Cryptic "400 Bad Request" in the Moloni API in detail “ on Medium: @ranjanmuz01012003/how-i-debugged-a-cryptic-400-bad-request-in-the-moloni-api-and-learned-less-is-more-078f0588f54d" target="_blank" rel="nofollow noopener">medium.com/@ranjanmuz0101…

3 things I learned: 1️⃣ Start with the minimal payload. 2️⃣ Error messages can be red herrings. 3️⃣ Never hardcode IDs—fetch them dynamically! Who else has broken an API by being "too explicit"? 🙋‍♂️ #SoftwareEngineering #Python #Debugging

That moment when "400 Bad Request" teaches you that less is more. I spent hours fighting a Moloni API integration yesterday. The logs said "Validation Error," but the real problem was me trying to be too smart. Here’s how I fixed a cascading API failure. 🧵👇 #DevLife #APIs