Implement idempotent endpoints in Laravel à la Stripe

Plug that makes POST and PATCH requests idempotent

🚥 Idempotency Handler, for making sure incoming requests are idempotent. Useful for payments, "at least once delivery" systems and more.

Gem for supporting idempotency in your Grape APIs

Interpret HTTP responses and handle failures in Swift.

Idempotent Package for Laravel

My vision of pretty good FastAPI project template to start with

makes any request idempotent across nodejs frameworks like nestjs, express, fastify

IdempotentSharp allows you to develop idempotent endpoints.

The idempotency-middleware library adds idempotency support to your Go API projects. It ensures that a client request is processed only once, regardless of how many times it is received. This middleware is especially useful for handling retry logic in distributed systems.

Make any mutating endpoint idepmotent

A Rack Middleware implementing the idempotency design principle using the Idempotency-Key HTTP header.