---
title: "Start an upload session, reserving storage quota (editor/admin on the project)."
method: POST
path: "/v1/uploads/initiate"
tags: ["resource-facade"]
---

# Start an upload session, reserving storage quota (editor/admin on the project).

`POST /v1/uploads/initiate`

## Headers

- `x-api-key` string, nullable

## Request body

- UploadInitiate — Input for starting an upload session.
  - `project_id` string, required
  - `transfer_method` string
  - `file_count` integer
  - `total_bytes` integer
  - `target_collection_id` string, nullable
  - `target_item_id` string, nullable
  - `asset_key` string, nullable
  - `is_categorical` boolean

## Response `200`

Successful Response

- UploadOutput
  - `id` string, required

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `422` — Validation Error
- `500` — Internal Server Error

---

[API](https://skmtc.dev/geopera/apis/geopera-data-platform.md) · [All operations](https://skmtc.dev/geopera/apis/geopera-data-platform/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/geopera/geopera-data-platform/revisions/cb0130b2a40a/schema)