---
title: "Idempotency Start"
method: POST
path: "/api/v1.idempotency.start"
tags: ["Idempotency"]
---

# Idempotency Start

`POST /api/v1.idempotency.start`

Start an idempotent request

## Request body

- IdempotencyStartIn
  - `namespace` string, nullable
  - `key` string, required
  - `lock_period_ms` integer, required — How long to hold the lock on start before releasing it.

## Response `200`

- union
  - object — Lock acquired, request should proceed
    - `status` 'started', required
  - object — Request is already in progress (locked)
    - `status` 'locked', required
  - object — Request was already completed, cached response returned
    - `status` 'completed', required
    - `data` IdempotencyCompleted, required
      - `response` integer[], required
      - `context` object, nullable

## Other responses

- `400`
- `401`
- `403`
- `422`

---

[API](https://skmtc.net/svix/apis/diom-api.md) · [All operations](https://skmtc.net/svix/apis/diom-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/svix/diom-api/revisions/4911827555b2/schema)