/workspaces/{workspaceId}/documents/{documentId} endpoint.curl --location --request POST '/v1/workspaces//documents' \
--form 'file=@""' \
--form 'extRef=""'{
"documentId": "string",
"workspaceId": "string",
"fileName": "string",
"fileHash": "string",
"fileSize": "string",
"mimeType": "string",
"uploadedAt": "string",
"extRef": "string"
}