{
  "additionalProperties": false,
  "properties": {
    "key": {
      "type": "string",
      "description": "The path of the temporary file on the external storage service.",
      "example": "temp/site/uploads/default/12345/67890.jpg"
    },
    "external_upload_identifier": {
      "type": "string",
      "description": "The identifier of the multipart upload in the external storage provider. This is the multipart upload_id in AWS S3.",
      "example": "84x83tmxy398t3y._Q_z8CoJYVr69bE6D7f8J6Oo0434QquLFoYdGVerWFx9X5HDEI_TP_95c34n853495x35345394.d.ghQ"
    },
    "unique_identifier": {
      "type": "string",
      "description": "A unique string that identifies the external upload. This must be stored and then sent in the /complete-multipart and /batch-presign-multipart-parts endpoints.",
      "example": "66e86218-80d9-4bda-b4d5-2b6def968705"
    }
  },
  "required": [
    "external_upload_identifier",
    "key",
    "unique_identifier"
  ]
}