stable · api · 0.1.0

Create a short-lived authorized private download grant

POST /api/v1/file-objects/{fileObjectId}/download-grants

Capability Domain: Files Media

Authentication

projectCredential (files:read)

Scope: files:read

Parameters and request body

fileObjectId — path, required
fileObjectId schema
```
{
    "type": "string",
    "format": "uuid"
}
```
Idempotency-Key — header, required
Idempotency-Key schema
```
{
    "type": "string",
    "maxLength": 120
}
```
X-Correlation-ID — header, optional
X-Correlation-ID schema
```
{
    "type": "string",
    "format": "uuid"
}
```

Responses and errors

Status	Description
`200`	Short-lived download grant
`401`	Invalid or revoked Project Credential
`403`	Project Credential lacks the required scope
`422`	Request violates the public contract

200 schema

200 response schema

{
    "type": "object",
    "required": [
        "data"
    ],
    "properties": {
        "data": {
            "type": "object",
            "required": [
                "grant_id",
                "download_url",
                "expires_at"
            ],
            "properties": {
                "grant_id": {
                    "type": "string",
                    "format": "uuid"
                },
                "download_url": {
                    "type": "string",
                    "format": "uri"
                },
                "expires_at": {
                    "type": "string",
                    "format": "date-time"
                }
            }
        }
    }
}

401 schema

401 response schema

{
    "type": "object",
    "required": [
        "error"
    ],
    "properties": {
        "error": {
            "type": "object",
            "required": [
                "code",
                "message",
                "retryable",
                "correlation_id",
                "details"
            ],
            "properties": {
                "code": {
                    "type": "string"
                },
                "message": {
                    "type": "string"
                },
                "retryable": {
                    "type": "boolean"
                },
                "correlation_id": {
                    "type": "string",
                    "format": "uuid"
                },
                "details": {
                    "type": "object"
                }
            }
        }
    }
}

403 schema

403 response schema

{
    "type": "object",
    "required": [
        "error"
    ],
    "properties": {
        "error": {
            "type": "object",
            "required": [
                "code",
                "message",
                "retryable",
                "correlation_id",
                "details"
            ],
            "properties": {
                "code": {
                    "type": "string"
                },
                "message": {
                    "type": "string"
                },
                "retryable": {
                    "type": "boolean"
                },
                "correlation_id": {
                    "type": "string",
                    "format": "uuid"
                },
                "details": {
                    "type": "object"
                }
            }
        }
    }
}

422 schema

422 response schema

{
    "type": "object",
    "required": [
        "error"
    ],
    "properties": {
        "error": {
            "type": "object",
            "required": [
                "code",
                "message",
                "retryable",
                "correlation_id",
                "details"
            ],
            "properties": {
                "code": {
                    "type": "string"
                },
                "message": {
                    "type": "string"
                },
                "retryable": {
                    "type": "boolean"
                },
                "correlation_id": {
                    "type": "string",
                    "format": "uuid"
                },
                "details": {
                    "type": "object"
                }
            }
        }
    }
}

200 example

200 response example

{
    "data": {
        "grant_id": "50000000-0000-4000-8000-000000000006",
        "download_url": "https://storage.example.test/private-download",
        "expires_at": "2026-08-09T13:00:00Z"
    }
}

Idempotency

Retry with the same Idempotency-Key for the same File Object after a lost response.