# Smart Home Faucet Guide

`action.devices.types.FAUCET` - Faucets can dispense liquids in various quantities and presets. Faucets may have various modes and each mode has its own related settings. These are specific to the faucet and are interpreted in a generalized form.

This type indicates that the device gets the Faucet 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.

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

## Example device: Simple faucet

This section contains example intent payloads representing a common "Faucet"
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.FAUCET",
        "traits": [
          "action.devices.traits.Dispense",
          "action.devices.traits.TemperatureControl",
          "action.devices.traits.OnOff",
          "action.devices.traits.StartStop"
        ],
        "name": {
          "name": "Simple faucet"
        },
        "willReportState": true,
        "attributes": {
          "supportedDispenseItems": [
            {
              "item_name": "water_key",
              "item_name_synonyms": [
                {
                  "lang": "en",
                  "synonyms": [
                    "Water"
                  ]
                },
                {
                  "lang": "es",
                  "synonyms": [
                    "Agua"
                  ]
                },
                {
                  "lang": "fr",
                  "synonyms": [
                    "Eau"
                  ]
                }
              ],
              "supported_units": [
                "TEASPOONS",
                "TABLESPOONS",
                "FLUID_OUNCES",
                "CUPS",
                "PINTS",
                "QUARTS",
                "GALLONS",
                "MILLILITERS",
                "LITERS",
                "DECILITERS"
              ],
              "default_portion": {
                "amount": 2,
                "unit": "CUPS"
              }
            }
          ],
          "supportedDispensePresets": [
            {
              "preset_name": "cat_water_bowl_key",
              "preset_name_synonyms": [
                {
                  "lang": "en",
                  "synonyms": [
                    "Cat water bowl",
                    "Cat water dish",
                    "Cat water cup"
                  ]
                },
                {
                  "lang": "es",
                  "synonyms": [
                    "Plato de agua para gato",
                    "Bebedero para gato"
                  ]
                },
                {
                  "lang": "fr",
                  "synonyms": [
                    "Bol d'eau de chat",
                    "Bac \u00e0 eau pour chat",
                    "Tasse d'eau de chat"
                  ]
                }
              ]
            }
          ],
          "temperatureRange": {
            "minThresholdCelsius": 25,
            "maxThresholdCelsius": 100
          },
          "temperatureUnitForUX": "F"
        },
        "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": false,
        "temperatureSetpointCelsius": 30,
        "isRunning": true,
        "isPaused": false,
        "dispenseItems": [
          {
            "itemName": "water_key",
            "amountLastDispensed": {
              "amount": 2.5,
              "unit": "CUPS"
            },
            "isCurrentlyDispensing": false
          }
        ]
      }
    }
  }
}
```

### Sample EXECUTE commands

#### Dispense

For additional details on the command parameters,
see the [`action.devices.traits.Dispense`](https://developers.home.google.com/cloud-to-cloud/traits/dispense#action.devices.commands.dispense) 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": "6894439706274654516",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.Dispense",
                "params": {
                  "amount": 1,
                  "unit": "CUPS",
                  "item": "water_key"
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654516",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "PENDING",
        "states": {
          "online": true,
          "dispenseItems": [
            {
              "itemName": "water_key",
              "amountLastDispensed": {
                "amount": 1,
                "unit": "CUPS"
              },
              "isCurrentlyDispensing": true
            }
          ]
        }
      }
    ]
  }
}
```

#### SetTemperature

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

```
{
  "requestId": "6894439706274654518",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.SetTemperature",
                "params": {
                  "temperature": 65
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654518",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "SUCCESS",
        "states": {
          "online": true,
          "temperatureSetpointCelsius": 65
        }
      }
    ]
  }
}
```

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

```
{
  "requestId": "6894439706274654520",
  "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": "6894439706274654522",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.StartStop",
                "params": {
                  "start": true
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654522",
  "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": "6894439706274654524",
  "inputs": [
    {
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [
          {
            "devices": [
              {
                "id": "123"
              }
            ],
            "execution": [
              {
                "command": "action.devices.commands.PauseUnpause",
                "params": {
                  "pause": true
                }
              }
            ]
          }
        ]
      }
    }
  ]
}
```
Response

```
{
  "requestId": "6894439706274654524",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "PENDING",
        "states": {
          "online": true,
          "isRunning": false,
          "isPaused": true
        }
      }
    ]
  }
}
```

## Device ERRORS

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