---
title: "Stream upload processing events via SSE"
method: GET
path: "/api/v1/upload/process-stream/{upload_session_id}"
tags: ["Upload"]
---

# Stream upload processing events via SSE

`GET /api/v1/upload/process-stream/{upload_session_id}`

## Request

- Base URL: `https://backend.caspr.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://backend.caspr.ai/api/v1/upload/process-stream/{upload_session_id}`
- Auth: none declared

Server-Sent Events stream for upload progress, errors, and completion. The frontend should connect after calling ``POST /upload/create-session``.

## Path parameters

- `upload_session_id` string, required

## Query parameters

- `event_id` string

## Response `200`

Successful Response

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/caspr/apis/casper-api.md) - [All operations](https://skmtc.dev/caspr/apis/casper-api/llms.txt) - [OpenAPI document](https://skmtc.dev/caspr/apis/casper-api/revisions/f9765e3aa00c?raw)