Presign Replacement Upload

POST

/assets/{assetId}/replace/presign

Requests a temporary presigned upload URL to replace the active bytes of an existing asset.

Request

Authorization

Bearer Token

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Path Params

Body Params application/jsonRequired

Examples

Responses

🟢201

application/json

Replacement upload presigned

Bodyapplication/json

🟠404NotFound

Request Example

Shell

JavaScript

Java

Swift

curl --location '/assets//replace/presign' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
    "filename": "hero-v2.png",
    "content_type": "image/png",
    "size": 312000,
    "checksum_sha256": "string"
}'

Response Example

201 - Example 1

{
    "upload_id": "upl_9f3b1458-45a2-4a0b-8d59-2c7bb2de3f1a",
    "upload_url": "http://example.com",
    "expires_at": "2019-08-24T14:15:22.123Z",
    "required_headers": {
        "Content-Type": "image/png",
        "x-amz-checksum-sha256": "string"
    }
}

Modified at 2026-10-11 18:32:15

Delete Asset

Finalize Asset Replacement