# Commands

Command messages are the basis for interacting with the real-time API. All commands take the form of a JSON payload, and will return a JSON response.

| Attribute | Type                 | Description                                                                                                                                                                 |
| --------- | -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| id        | `number` or `string` | A unique ID to associated with the command. This is returned as part of the response. Generally an incrementing counter, however any string or numerical value may be used. |
| cmd       | `string`             | The command type. One of `bind`, `unbind`, `exec`, `debug`, or`ignore`.                                                                                                     |
| sys       | `string`             | The system ID that the command targets.                                                                                                                                     |
| mod       | `string`             | The name of the module that the command targets.                                                                                                                            |
| name      | `string`             | Method, or status variable name to be interacted with.                                                                                                                      |