---
title: "Store an upload chunk."
method: POST
path: "/2/vod/uploads/{upload}/chunk"
tags: ["V3 > Upload"]
---

# Store an upload chunk.

`POST /2/vod/uploads/{upload}/chunk`

Resolves the cached session info and persists the chunk at the given
index on the session disk. Responds 404 when the session is unknown,
expired or foreign to the upload's channel, 422 when the chunk is
invalid (index out of range, undersized segment), 200 otherwise.

## Path parameters

- `upload` string, required

## Request body

- object
  - `file` string — <br/>The file under validation must have a MIME type corresponding to one of the following extensions:`audio`, `3gpp`, `3gpp-encrypted`, `3gpp2`, `aac`, `ac3`, `adpcm`, `amr`, `amr-encrypted`, `amr-wb`, `amr-wb-encrypted`, `annodex`, `basic`, `flac`, `imelody`, `m3u`, `m4a`, `midi`, `mobile-xmf`, `mp2`, `mp3`, `mp4`, `mpeg`, `mpegurl`, `ogg`, `prs.sid`, `s3m`, `scpls`, `silk`, `tta`, `usac`, `vnd.audible`, `vnd.audible.aax`, `vnd.dece.audio`, `vnd.digital-winds`, `vnd.dra`, `vnd.dts`, `vnd.dts.hd`, `vnd.lucent.voice`, `vnd.m-realaudio`, `vnd.ms-playready.media.pya`, `vnd.nuera.ecelp4800`, `vnd.nuera.ecelp7470`, `vnd.nuera.ecelp9600`, `vnd.rip`, `vnd.rn-realaudio`, `vnd.wave`, `vorbis`, `wav`, `wave`, `webm`, `wma`, `x-aac`, `x-aifc`, `x-aiff`, `x-aiffc`, `x-amzxml`, `x-annodex`, `x-ape`, `x-caf`, `x-dts`, `x-dtshd`, `x-flac`, `x-gsm`, `x-hx-aac-adts`, `x-imelody`, `x-iriver-pla`, `x-it`, `x-m3u`, `x-m4a`, `x-m4b`, `x-m4r`, `x-matroska`, `x-midi`, `x-minipsf`, `x-mo3`, `x-mod`, `x-mp2`, `x-mp3`, `x-mp3-playlist`, `x-mpeg`, `x-mpegurl`, `x-mpg`, `x-ms-asx`, `x-ms-wax`, `x-ms-wma`, `x-ms-wmv`, `x-musepack`, `x-ogg`, `x-oggflac`, `x-opus`, `x-pn-audibleaudio`, `x-pn-realaudio`, `x-pn-realaudio-plugin`, `x-psf`, `x-psflib`, `x-realaudio`, `x-rn-3gpp-amr`, `x-rn-3gpp-amr-encrypted`, `x-rn-3gpp-amr-wb`, `x-rn-3gpp-amr-wb-encrypted`, `x-s3m`, `x-scpls`, `x-shorten`, `x-speex`, `x-stm`, `x-tta`, `x-voc`, `x-vorbis`, `x-wav`, `x-wavpack`, `x-wavpack-correction`, `x-xi`, `x-xm`, `x-xmf`, `xm`, `xmf`, `video`, `3gp`, `avi`, `divx`, `dv`, `fli`, `flv`, `h261`, `h263`, `h264`, `iso.segment`, `jpeg`, `jpm`, `mj2`, `mp2t`, `mp4v-es`, `mpeg-system`, `msvideo`, `quicktime`, `vivo`, `vnd.dece.hd`, `vnd.dece.mobile`, `vnd.dece.pd`, `vnd.dece.sd`, `vnd.dece.video`, `vnd.divx`, `vnd.dvb.file`, `vnd.fvt`, `vnd.mpegurl`, `vnd.ms-playready.media.pyv`, `vnd.radgamettools.bink`, `vnd.radgamettools.smacker`, `vnd.rn-realvideo`, `vnd.uvvu.mp4`, `vnd.vivo`, `x-anim`, `x-avi`, `x-f4v`, `x-fli`, `x-flic`, `x-flv`, `x-javafx`, `x-m4v`, `x-matroska-3d`, `x-mjpeg`, `x-mng`, `x-mpeg-system`, `x-mpeg2`, `x-ms-asf`, `x-ms-asf-plugin`, `x-ms-vob`, `x-ms-wm`, `x-ms-wmx`, `x-ms-wvx`, `x-msvideo`, `x-nsv`, `x-ogm`, `x-real-video`, `x-sgi-movie`, `x-smv`, `x-theora`
  - `from` number
  - `duration` number

## Response `200`

OK

- Response
  - `result` 'success' | 'error' | 'asynchronous', required — Result of the HTTP request

## Changes

- **2026-10-08** `970770257c30` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/infomaniak/apis/api-reference-developer-tools/changes/2/vod/uploads/:upload/chunk/post.md)

---

[API](https://skmtc.dev/infomaniak/apis/api-reference-developer-tools.md) · [All operations](https://skmtc.dev/infomaniak/apis/api-reference-developer-tools/llms.txt) · [OpenAPI document](https://skmtc.dev/infomaniak/apis/api-reference-developer-tools/revisions/970770257c30?raw)