---
title: "Upload Illustration Image"
method: POST
path: "/questionnaires/jobs/{job_id}/illustration-upload"
tags: ["questionnaires"]
---

# Upload Illustration Image

`POST /questionnaires/jobs/{job_id}/illustration-upload`

## Request

- Base URL: `https://api.threadchain.pro` (the document declares no server; this is the origin it was published from)
- URL: `https://api.threadchain.pro/questionnaires/jobs/{job_id}/illustration-upload`
- Auth: OAuth 2
  - Password
  - Token URL: `auth/token`

Upload a single flattened illustration PNG (one Illustration Studio view). Returns
`{ "url": "<public url>" }` — store it via `PATCH …/platform-state` on
`illustrations.<front|back>.pngUrl` (alongside that view's editable `drawing` JSON).

## Path parameters

- `job_id` string, uuid, required

## Request body `multipart/form-data`

- BodyUploadIllustrationImageQuestionnairesJobsJobIdIllustrationUploadPost
  - `file` string, binary, required: Flattened PNG render of an Illustration Studio view

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/threadchain/apis/threadchain-backend.md) - [All operations](https://skmtc.dev/threadchain/apis/threadchain-backend/llms.txt) - [OpenAPI document](https://skmtc.dev/threadchain/apis/threadchain-backend/revisions/8ee288a7e6bd?raw)