---
title: "Append one chunk at a byte offset"
method: PUT
path: "/api/uploads/{id}/chunk/"
tags: ["uploads"]
---

# Append one chunk at a byte offset

`PUT /api/uploads/{id}/chunk/`

## Request

- Base URL: `https://api.overmindlab.ai`
- URL: `https://api.overmindlab.ai/api/uploads/{id}/chunk/`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-Api-Key`
  - API key in cookie `sessionid`
  - API key in header `X-Api-Key`
  - HTTP bearer

Parsers must stay declared on the class: ``@action`` initkwargs only apply
through the router, so an action-level parser silently reverts elsewhere.

## Path parameters

- `id` string, required

## Query parameters

- `offset` integer

## Request body `application/octet-stream`

- string, binary

## Response `200`

- UploadState
  - `upload_id` string, required
  - `received` integer, required

---

[API](https://skmtc.dev/overmindlab/apis/overmind-api.md) - [All operations](https://skmtc.dev/overmindlab/apis/overmind-api/llms.txt) - [OpenAPI document](https://skmtc.dev/overmindlab/apis/overmind-api/revisions/0ecfd39e80c6?raw)