---
title: "Change the quantity of a line"
method: PATCH
path: "/api/v1/baskets/{id}/lines/{lineId}"
---

# Change the quantity of a line

`PATCH /api/v1/baskets/{id}/lines/{lineId}`

## Request

- Base URL: `http://127.0.0.1:4310`
- URL: `http://127.0.0.1:4310/api/v1/baskets/{id}/lines/{lineId}`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `sfb_session`

## Path parameters

- `id` string, required
- `lineId` string, required

## Request body

- object
  - `quantity` integer, required

## Response `200`

OK

- object

## Other responses

- `400`: Validation error
- `401`: Unauthenticated
- `403`: Forbidden
- `404`: Not found
- `409`: Conflict or invalid state

---

[API](https://skmtc.dev/scalingfirm/apis/tsf-booking-api.md) · [All operations](https://skmtc.dev/scalingfirm/apis/tsf-booking-api/llms.txt) · [OpenAPI document](https://skmtc.dev/scalingfirm/apis/tsf-booking-api/revisions/81704199cd37?raw)