---
title: "Discussion on \"How to Implement Idempotency in a NestJS + PostgreSQL Stack (Without Losing Sleep Over Duplicate Requests)\" | Hashnode"
description: "Discussion on \"How to Implement Idempotency in a NestJS + PostgreSQL Stack (Without Losing Sleep Over Duplicate Requests)\". A practical guide to implementing idempotency in a Vue + NestJS + PostgreSQL stack using idempotency keys, a custom Guard, and raw SQL — no ORM required."
url: "https://hashnode.com/posts/how-to-implement-idempotency-in-a-nestjs-postgresql-stack-without-losing-sleep-over-duplicate-requests/6a116d411a3cf7bffcfbcb1f"
---

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Discussion

# [How to Implement Idempotency in a NestJS + PostgreSQL Stack (Without Losing Sleep Over Duplicate Requests)](https://ernestoyanac.com/how-to-implement-idempotency-in-a-nestjs-postgresql-stack-without-losing-sleep-over-duplicate-requests?utm_source=hashnode&utm_medium=feed)

A practical guide to implementing idempotency in a Vue + NestJS + PostgreSQL stack using idempotency keys, a custom Guard, and raw SQL — no ORM required.

May 23 · 5 min read · ernestoyanac.com  
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-   [#idempotence](https://hashnode.com/tag/idempotence)

## Written by

[Ernesto Yanac Huertas](https://hashnode.com/@ErnestoYanac)

@ErnestoYanac · Mallorca, Spain

  
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Fullstack developer

Developing web/mobile applications, from the server-side to the client-side. With 6 years of experience in software development. I am skilled in using a range of data mining language and technologies working as Big Data Engineer for 4 years.

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