查询并执行

当用户与 Google Assistant 互动以查询设备的当前 状态时,您的执行方式会接收到 action.devices.QUERY intent,其中包含一个 设备 ID 列表(由您的 SYNC 响应提供)。 当用户向 Assistant 发送命令来控制您的设备时,您的执行方式会接收到 action.devices.EXECUTE intent 。

处理 QUERY intent

你的 QUERY 响应包含所请求的设备支持的每种特征的全部状态。

请求
{
    "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf",
    "inputs": [{
      "intent": "action.devices.QUERY",
      "payload": {
        "devices": [{
          "id": "123",
          "customData": {
            "fooValue": 74,
            "barValue": true,
            "bazValue": "foo"
          }
        }, {
          "id": "456",
          "customData": {
            "fooValue": 12,
            "barValue": false,
            "bazValue": "bar"
          }
        }]
      }
    }]
}
JSON
{
  "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf",
  "payload": {
    "devices": {
      "123": {
        "on": true,
        "online": true,
        "status": "SUCCESS"
      },
      "456": {
        "on": true,
        "online": true,
        "status": "SUCCESS",
        "brightness": 80,
        "color": {
          "name": "cerulean",
          "spectrumRGB": 31655
        }
      }
    }
  }
}
Node.js
const {smarthome} = require('actions-on-google');
const app = smarthome();
// ...
app.onQuery((body, headers) => {
  // TODO Get device state
  return {
    requestId: body.requestId,
    payload: {
      devices: {
        123: {
          on: true,
          online: true,
          status: "SUCCESS"
        },
        456: {
          on: true,
          online: true,
          status: "SUCCESS",
          brightness: 80,
          color: {
            name: "cerulean",
            spectrumRGB: 31655
          }
        }
      }
    }
  };
});
Java
@NotNull
@Override
public QueryResponse onQuery(@NotNull QueryRequest queryRequest, @Nullable Map<?, ?> map) {
  QueryResponse.Payload payload = new QueryResponse.Payload();
  payload.setDevices(
      new HashMap<String, Map<String, Object>>() {
        {
          put(
              "123",
              new HashMap<String, Object>() {
                {
                  put("on", true);
                  put("online", true);
                  put("status", "SUCCESS");
                }
              });
          put(
              "456",
              new HashMap<String, Object>() {
                {
                  put("on", true);
                  put("online", true);
                  put("status", "SUCCESS");
                  put("brightness", 80);
                  put(
                      "color",
                      new HashMap<String, Object>() {
                        {
                          put("name", "cerulean");
                          put("spectrumRGB", 31655);
                        }
                      });
                }
              });
        }
      });

  return new QueryResponse(queryRequest.getRequestId(), payload);
}

如需了解详情,请参阅 QUERY intent 参考文档。

处理 EXECUTE intent

QUERY 类似,一个 intent 可以定位多个设备 ID。一个 EXECUTE intent 还可能包含多个提供给一组设备的多个不同命令。例如,一个被触发的 intent 可能会为一组灯设置亮度和颜色,或将多个灯设置为不同的颜色。执行后,您的 EXECUTE 响应应会返回设备的新状态。

用户设备的状态发生变化时,请使用Report State 例如,当由于 EXECUTE intent 或本地状态改变(例如手动开关灯)等原因而导致状态变化时。 这可以确保 Google Home Graph 与您的云服务保持同步。

请求
{
    "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf",
    "inputs": [{
      "intent": "action.devices.EXECUTE",
      "payload": {
        "commands": [{
          "devices": [{
            "id": "123",
            "customData": {
              "fooValue": 74,
              "barValue": true,
              "bazValue": "sheepdip"
            }
          }, {
            "id": "456",
            "customData": {
              "fooValue": 36,
              "barValue": false,
              "bazValue": "moarsheep"
            }
          }],
          "execution": [{
            "command": "action.devices.commands.OnOff",
            "params": {
              "on": true
            }
          }]
        }]
      }
    }]
}
JSON
{
  "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf",
  "payload": {
    "commands": [
      {
        "ids": [
          "123"
        ],
        "status": "SUCCESS",
        "states": {
          "on": true,
          "online": true
        }
      },
      {
        "ids": [
          "456"
        ],
        "status": "ERROR",
        "errorCode": "deviceTurnedOff"
      }
    ]
  }
}
Node.js
const {smarthome} = require('actions-on-google');
const app = smarthome();
// ...
app.onExecute((body, headers) => {
  // TODO Send command to device
  return {
    requestId: body.requestId,
    payload: {
      commands: [{
        ids: ["123"],
        status: "SUCCESS",
        states: {
          on: true,
          online: true
        }
      }, {
        ids: ["456"],
        status: "ERROR",
        errorCode: "deviceTurnedOff"
      }]
    }
  };
});
Java
@NotNull
@Override
public ExecuteResponse onExecute(
    @NotNull ExecuteRequest executeRequest, @Nullable Map<?, ?> map) {
  ExecuteResponse.Payload payload = new ExecuteResponse.Payload();

  payload.setCommands(
      new Commands[] {
        new Commands(
            new String[] {"123"},
            "SUCCESS",
            new HashMap<String, Object>() {
              {
                put("on", true);
                put("online", true);
              }
            },
            null,
            null),
        new Commands(new String[] {"456"}, "ERROR", null, "deviceTurnedOff", null)
      });
  return new ExecuteResponse(executeRequest.getRequestId(), payload);
}

如需了解详情,请参阅 EXECUTE intent 参考文档。

状态响应

你的 QUERYEXECUTE 响应包含一个用于报告请求结果的 status 字段。每个状态响应都可以提供以下某一值:

  • SUCCESS:请求成功。
  • OFFLINE:目标设备处于离线状态或无法访问。
  • EXCEPTIONS:相应请求存在问题或提醒。
  • ERROR:请求失败,错误提示:errorCode

如需详细了解 ERROREXCEPTIONS,请参阅 处理错误和异常以及 错误和异常,了解更多 详细信息。