Datatypes

Datatypes that are commonly used in many WebSocket messages over different sections are defined here.

`Frame`

Holds the Image data, sentinel, and other important information you need for a Frame.

Field	Type	Required	Description
`sentinelId`	string	yes	UUID of the sentinel that the Frame belongs to
`frameId`	string	yes	UUID of the frame itself
`index`	integer	yes	Index of the frame in the order it was created relative to other frames
`data`	string	yes	Base64 encoded JPEG data of the image

Example:

{
  "sentinelId": "b255e355-e398-43d7-b772-101bbf4ca8f0",
  "frameId": "4799566e-ecdf-40e0-99c2-7bdc63a4038c",
  "index": 5,
  "data": "/9j/4AAQSkZ....yl0p8Bg/g/wBLj/1bP/F1v0A//9k="
}

Last updated on March 16, 2026 • J.H.F.

Lifecycle