Sagar Partap Singh

Backend Engineer : Python , Upcoming (Golang)
I Build what 99 % of Developers are afraid to do .

[Sagar Partap Singh @devvxsagar]

@Hiteshdotcom I feel like paying monthly keeps u engaged with the particular thing ! It can be anything a course or a gym subscription anything !

[Sagar Partap Singh @devvxsagar]

@CoreyMSchafer is demon of python 🐍!
He clears concepts so well that i can’t believe things could be this much easy !

Welldone @CoreyMSchafer 💕.

#buildinpublic #python

[Sagar Partap Singh @devvxsagar]

Guys , Plz Drop a advice before i start DSA . Cause i tried a lot of time but this time i want to make it in DSA and Work Hard with consistency .

Your Advice will be helpful for me thanks 🫶.

[Sagar Partap Singh @devvxsagar]

@Umesh__digital The more expensive you go on macbook it becomes beast , the more you go expensive with windows it become i feel not worth enough to pay that much !

[Sagar Partap Singh @devvxsagar]

@iavinashtr Did bro

[Sagar Partap Singh @devvxsagar]

Day 2 & 3 / 7 of building RelayHook 🚀

What I shipped:
⚡ Sub-5ms async ingestion (HTTP 202)
🔒 Stripe-style HMAC signing
🔁 Atomic idempotency in Postgres
📊 Audit logs (7.8ms latency)

Live end-to-end demo passed! ✅

Day 4: Retries & DLQ

#buildinpublic #backend #python

[Sagar Partap Singh @devvxsagar]

@vlatdd Thanx hoping u gave a star ⭐️ 😁

[Sagar Partap Singh @devvxsagar]

@vlatdd https://t.co/0GbNXGNAGI

[Sagar Partap Singh @devvxsagar]

@SamVale29 https://t.co/UAwhHDG5Gi

try u will get to know what i created as a fresher

[Sagar Partap Singh @devvxsagar]

@boardyai Appreciate it! 🙌 Officially wrapped Day 7 and open-sourced the repo.

Now onto Project 2 (Multi-Tenant RAG API)���let’s see what breaks there! 🚀

[Sagar Partap Singh @devvxsagar]

@MicroLaunchHQ https://t.co/UAwhHDG5Gi

i want people to contribute and create more and more pull request

[Sagar Partap Singh @devvxsagar]

@lightsilver323 https://t.co/UAwhHDG5Gi

[Sagar Partap Singh @devvxsagar]

@boardyai Haha touché! That’s exactly what Day 6 was for: blasted 500 concurrent events against a 30% drop rate.

Actually starved the DB pool (QueuePool limit reached), tuned it to 50 conns, and verified zero data loss.

Guess I earned that 10/10 today 😉

[Sagar Partap Singh @devvxsagar]

@boardyai Thanks! App-level checks always fail the moment two requests hit at the exact same millisecond (TOCTOU). Letting Postgres enforce the unique constraint with atomic rollback was non-negotiable.

What would turn that 8 into a 10/10 in your book?

[Sagar Partap Singh @devvxsagar]

RelayHook is officially open-source! 🚀

A distributed webhook engine tackling:
• Atomic Postgres idempotency
• Full jitter backoff & DLQ
• Redis Token-Bucket limiter
• Prometheus metrics & Docker

Star & open a PR:
https://t.co/0GbNXGNAGI

#buildinpublic #backend #python

[Sagar Partap Singh @devvxsagar]

Sprint Complete: Day 7 of 7 🚀

Officially open-sourced RelayHook:
⚡ 58 RPS under 30% chaos drops
🔒 Stripe-style HMAC signing
🛡️ Redis Token-Bucket rate limiting
📊 Prometheus metrics & tracing
🐳 1-command Docker Compose stack

Repo link in replies! 👇

#buildinpublic #backend

[Sagar Partap Singh @devvxsagar]

Day 6 / 7 of building RelayHook 🚀

From localhost to battle-tested:
• Structured JSON logs & Trace IDs
• Prometheus metrics (/metrics scrape)
• 500-event chaos test (30% drop rate)
• Solved DB connection pool bottleneck

58 RPS | Zero data loss ✅

#buildinpublic #backend

[Sagar Partap Singh @devvxsagar]

@iavinashtr Sure man ! Feel free to reach me out anytime!

[Sagar Partap Singh @devvxsagar]

Day 5 / 7of building RelayHook 🚀

Building differently than 99% of devs:
• Redis Token-Bucket rate limiter
• Per-tenant concurrency caps (no DDoS)
• Greedy worker (zero queue lag)
• Automated pytest test suite

Downstream partners protected!

#buildinpublic #backend #Python