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POST
/
vapor
/
signed-storage-url
Get Signed Upload URL
curl --request POST \
  --url https://api.raydocs.com/vapor/signed-storage-url \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "content_type": "application/pdf",
  "visibility": "private"
}
'
{
  "url": "<string>",
  "key": "<string>",
  "headers": {}
}

​
Authentication & Scope

Requires authentication. No specific ability required.

​
Overview

Before uploading documents to Raydocs, you need to obtain a signed URL that allows direct upload to cloud storage. This two-step process:
  1. Get signed URL - This endpoint returns a presigned S3 URL
  2. Upload file - PUT your file directly to the URL (no auth header needed)
This approach enables efficient, direct-to-storage uploads without proxying through the API server.

​
Request

POST /vapor/signed-storage-url HTTP/1.1
Host: api.raydocs.com
Authorization: Bearer <token>
Content-Type: application/json

{
  "content_type": "application/pdf",
  "visibility": "private"
}

​
Body Parameters

ParameterTypeRequiredDescription
content_typestringYesMIME type of the file (application/pdf, image/png, image/jpeg)
visibilitystringNoStorage visibility (default: private)

​
Supported File Types

TypeContent-Type
PDFapplication/pdf
PNGimage/png
JPEGimage/jpeg

​
Response

200 OK – Signed URL details. 
{
  "url": "https://s3.amazonaws.com/bucket/tmp/abc123-def456-ghi789...",
  "key": "tmp/abc123-def456-ghi789-invoice.pdf",
  "headers": {}
}

​
Response Fields

FieldTypeDescription
urlstringPresigned S3 URL for file upload
keystringFile key to use in subsequent API calls
headersobjectAdditional headers to include in upload request

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Upload the File

After receiving the signed URL, upload your file directly: 
PUT https://s3.amazonaws.com/bucket/tmp/abc123... HTTP/1.1
Content-Type: application/pdf

<binary file data>
Do not include the Authorization header when uploading to the signed URL. The signature in the URL provides authentication.

​
Complete Example

import requests

# Step 1: Get signed URL
api_url = "https://api.raydocs.com"
headers = {"Authorization": "Bearer <token>"}

response = requests.post(
    f"{api_url}/vapor/signed-storage-url",
    headers=headers,
    json={
        "content_type": "application/pdf",
        "visibility": "private"
    }
)
upload_data = response.json()

# Step 2: Upload file to S3
with open("invoice.pdf", "rb") as f:
    requests.put(
        upload_data["url"],
        data=f,
        headers={"Content-Type": "application/pdf"}
    )

# Step 3: Use the key in batch create
file_key = upload_data["key"]
print(f"File uploaded with key: {file_key}")

​
Next Steps

After uploading files, use the file keys to create sessions:

Batch Create Sessions

Create sessions with auto-extract from uploaded files

API Cookbook

Complete end-to-end example

Authorizations

​
Authorization
string
header
required

Personal Access Token created from the Raydocs dashboard. Include in the Authorization header: Bearer <your_token> See API Keys for token creation and management.

Body

application/json
​
content_type
string
required

MIME type of the file

Example:

"application/pdf"

​
visibility
enum<string>
default:private
Available options:
private,
public

Response

Signed URL generated

​
url
string<uri>

Presigned S3 URL for file upload (PUT)

​
key
string

File key to use in batch create

​
headers
object

Additional headers to include in upload request