# Smart Home Dryer Guide

`action.devices.types.DRYER` - Dryers have start and stop functionality independent from being on or off. Some can be paused and resumed while drying.
Dryers also have various modes and each mode has its own related settings. These are specific to the dryer and are interpreted in a generalized form.

This type indicates that the device gets the Dryer icon and some related
synonyms and aliases.

## Device capabilities

Refer to the corresponding trait documentation for
implementation details, such as attributes and states that your service should support, and how to
build EXECUTE and QUERY responses.

### Required traits

These traits and commands are required, if applicable to your
device. If your device does not support these traits, enter the error code of
`functionNotSupported` in a QUERY or EXECUTE response. See
[Errors and exceptions](https://developers.home.google.com/cloud-to-cloud/intents/errors-exceptions) for more info.

- [`action.devices.traits.StartStop`](https://developers.home.google.com/cloud-to-cloud/traits/startstop)

### Recommended traits

These traits are recommended, if applicable to your device.
However, you are free to mix and match from all available traits to best match your existing
product functionality.

- [`action.devices.traits.Modes`](https://developers.home.google.com/cloud-to-cloud/traits/modes)
- [`action.devices.traits.OnOff`](https://developers.home.google.com/cloud-to-cloud/traits/onoff)
- [`action.devices.traits.RunCycle`](https://developers.home.google.com/cloud-to-cloud/traits/runcycle)
- [`action.devices.traits.Toggles`](https://developers.home.google.com/cloud-to-cloud/traits/toggles)

> [!NOTE]
> **Note:** [OnOff](https://developers.home.google.com/cloud-to-cloud/traits/onoff) is needed only if the dryer has a separate power control from start/stop semantics; otherwise, use [StartStop](https://developers.home.google.com/cloud-to-cloud/traits/startstop).

## Example device: Simple dryer

This section contains example intent payloads representing a common "Dryer"
based on the device type and traits above. If you add or remove traits in your implementation,
modify your responses accordingly to reflect those changes.

### Sample SYNC response

Request

```
{
  "requestId": "6894439706274654512",
  "inputs": [
    {
      "intent": "action.devices.SYNC"
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654512",
  "payload": {
    "agentUserId": "user123",
    "devices": [
      {
        "id": "123",
        "type": "action.devices.types.DRYER",
        "traits": [
          "action.devices.traits.OnOff",
          "action.devices.traits.RunCycle",
          "action.devices.traits.StartStop",
          "action.devices.traits.Modes"
        ],
        "name": {
          "name": "Simple dryer"
        },
        "willReportState": true,
        "attributes": {
          "availableModes": [
            {
              "name": "load_key",
              "name_values": [
                {
                  "name_synonym": [
                    "Load",
                    "Size",
                    "Load size"
                  ],
                  "lang": "en"
                }
              ],
              "settings": [
                {
                  "setting_name": "small_key",
                  "setting_values": [
                    {
                      "setting_synonym": [
                        "Small",
                        "Half"
                      ],
                      "lang": "en"
                    }
                  ]
                },
                {
                  "setting_name": "large_key",
                  "setting_values": [
                    {
                      "setting_synonym": [
                        "Large",
                        "Full"
                      ],
                      "lang": "en"
                    }
                  ]
                }
              ],
              "ordered": true
            }
          ],
          "pausable": true
        },
        "deviceInfo": {
          "manufacturer": "smart-home-inc",
          "model": "hs1234",
          "hwVersion": "3.2",
          "swVersion": "11.4"
        }
      }
    ]
  }
}
```

### Sample QUERY response

Request

```
{
  "requestId": "6894439706274654514",
  "inputs": [
    {
      "intent": "action.devices.QUERY",
      "payload": {
        "devices": [
          {
            "id": "123"
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654514",
  "payload": {
    "devices": {
      "123": {
        "status": "SUCCESS",
        "online": true,
        "on": true,
        "isRunning": true,
        "isPaused": false,
        "currentRunCycle": [
          {
            "currentCycle": "dry",
            "lang": "en"
          }
        ],
        "currentTotalRemainingTime": 600,
        "currentCycleRemainingTime": 300,
        "currentModeSettings": {
          "load_key": "small_key"
        }
      }
    }
  }
}
```

### Sample EXECUTE commands

#### OnOff

For additional details on the command parameters,
see the [`action.devices.traits.OnOff`](https://developers.home.google.com/cloud-to-cloud/traits/onoff#action.devices.commands.onoff) reference.
Request

```
{
  "requestId": "6894439706274654516",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.OnOff",
                "params": {
                  "on": true
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654516",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "SUCCESS",
        "states": {
          "online": true,
          "on": true
        }
      }
    ]
  }
}
```

#### StartStop

For additional details on the command parameters,
see the [`action.devices.traits.StartStop`](https://developers.home.google.com/cloud-to-cloud/traits/startstop#action.devices.commands.startstop) reference.

> [!NOTE]
> For commands which have a naturally longer process time, please use the `PENDING` status in the EXECUTE response and follow-up with the [ReportStateAndNotification API](https://developers.home.google.com/cloud-to-cloud/integration/notifications#send-notification) when the command has been completed.

Request

```
{
  "requestId": "6894439706274654518",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.StartStop",
                "params": {
                  "start": true
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654518",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "PENDING",
        "states": {
          "online": true,
          "isRunning": true,
          "isPaused": false
        }
      }
    ]
  }
}
```

#### PauseUnpause

For additional details on the command parameters,
see the [`action.devices.traits.StartStop`](https://developers.home.google.com/cloud-to-cloud/traits/startstop#action.devices.commands.pauseunpause) reference.

> [!NOTE]
> For commands which have a naturally longer process time, please use the `PENDING` status in the EXECUTE response and follow-up with the [ReportStateAndNotification API](https://developers.home.google.com/cloud-to-cloud/integration/notifications#send-notification) when the command has been completed.

Request

```
{
  "requestId": "6894439706274654520",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.PauseUnpause",
                "params": {
                  "pause": true
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654520",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "PENDING",
        "states": {
          "online": true,
          "isRunning": false,
          "isPaused": true
        }
      }
    ]
  }
}
```

#### SetModes

For additional details on the command parameters,
see the [`action.devices.traits.Modes`](https://developers.home.google.com/cloud-to-cloud/traits/modes#action.devices.commands.setmodes) reference.
Request

```
{
  "requestId": "6894439706274654522",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.SetModes",
                "params": {
                  "updateModeSettings": {
                    "load_key": "large_key"
                  }
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654522",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "SUCCESS",
        "states": {
          "online": true,
          "currentModeSettings": {
            "load_key": "large_key"
          }
        }
      }
    ]
  }
}
```

## Device ERRORS

See the full list of [errors and exceptions](https://developers.home.google.com/cloud-to-cloud/intents/errors-exceptions).