I will make your API retry safe with idempotency keys

R
real_paschal
R
real_paschal
Paschal

About this gig

One dropped connection shouldn't charge your customer twice.


When a payment request times out, your client retries. When a webhook delivery fails, Stripe sends it again. When a background job stalls, the queue re-runs it. If those paths aren't idempotent, every retry repeats the work: double charges, duplicate orders, duplicate emails, and angry customers.


I audit your retry paths and make them safe. I built idempotency-key, exactly-once delivery into the core of a production email platform, so this is work I do every day, not theory.


What you get:

  • A written audit of every place a retry can duplicate work in your system
  • - Idempotency keys implemented on your critical paths: payments, webhooks, background jobs
  • - Duplicate detection and safe retry semantics, covered by tests

Order the audit first if you want the hazards mapped before changing code. Message me before ordering the larger packages so we can scope your critical paths.


Get to know Paschal

Paschal

Fullstack Developer Specializing in APIs, Web and Mobile Apps

  • FromNigeria
  • Member sinceMay 2023
  • Languages

    Igbo, English, German, French
Hello! I'm Odinaka Nnamani, a back-end developer with 3+ years of experience in custom APIs, system integrations, and scalable solutions. My passion for impactful coding that solves real-world problems drives me. Why Work with Me? I combine technical expertise, problem-solving skills, and a collaborative approach to deliver: ✅Custom APIs: secure, efficient, and built for seamless integration. ✅System Integration: Smooth connections with third-party platforms. ✅Scalability & Support. Web solutions are delivered in days! Contact me; let's work together!

My Portfolio