Device TYPE
action.devices.types.CAMERA
Cameras are complex and features will vary significantly between
vendors. Over time, cameras will acquire many traits and attributes describing specific
capabilities, many of which may interact with the video/audio stream in special ways, such as
sending a stream to another device, identifying what's in the stream, replaying feeds, etc. As such,
cameras also interact with other devices - especially screens and other media targets.
Recommended TRAITS
action.devices.traits.CameraStream
- This trait enables the device
to provide a real-time stream to a media destination; capabilities are defined
in the attributes.
These are our recommendations for traits on this type of
device, however you are free to mix and match from all available traits to best match your existing
product functionality.
Please see each individual trait document for implementation details like required attributes,
EXECUTE and QUERY.
Sample SYNC Request and Response
This is an example using the device type and traits above. It is intended to give an idea of how to build a SYNC response. If you add or remove traits, this will need to be modified to reflect those changes.
{ "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf", "inputs": [{ "intent": "action.devices.SYNC" }] }
Node.js
'use strict'; const {smarthome} = require('actions-on-google'); const functions = require('firebase-functions'); const app = smarthome(); app.onSync((body, headers) => { return { requestId: body.requestId, payload: { agentUserId: '1836.15267389', devices: [{ id: '123', type: 'action.devices.types.CAMERA', traits: [ 'action.devices.traits.CameraStream' ], name: { defaultNames: ['Sirius Cybernetics Corporation 3000'], name: 'Front Camera', nicknames: ['Camera'] }, willReportState: false, attributes: { cameraStreamSupportedProtocols: ['hls', 'dash'], cameraStreamNeedAuthToken: true, cameraStreamNeedDrmEncryption: false }, customData: { fooValue: 74, barValue: true, bazValue: 'lambtwirl' } }] } }; }); // ... exports.smarthome = functions.https.onRequest(app);
Java
@NotNull @Override public SyncResponse onSync(@NotNull SyncRequest syncRequest, @Nullable Map<?, ?> headers) { SyncResponse.Payload payload = new SyncResponse.Payload(); payload.setAgentUserId("1836.15267389"); payload.setDevices(new SyncResponse.Payload.Device[] { new SyncResponse.Payload.Device.Builder() .setId("123") .setType("action.devices.types.CAMERA") .addTrait("action.devices.traits.CameraStream") .setName( Collections.singletonList("Sirius Corporation 3000"), "Front camera", Collections.singletonList("Camera") ) .setWillReportState(false) .setAttributes(new JSONObject() .put("cameraStreamSupportedProtocols", new String[] {"hls", "dash"}) .put("cameraStreamNeedAuthToken", true) .put("cameraStreamNeedDrmEncryption", true) ) .setDeviceInfo("blinds manufacturer", "xyz", "3.2", "11.4") .setCustomData(new JSONObject() .put("fooValue", 74) .put("barValue", true) .put("bazValue", "lambtwirl") .toString() ) .build() }); return new SyncResponse(syncRequest.getRequestId(), payload); }
JSON
{ "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf", "payload": { "agentUserId": "1836.15267389", "devices": [ { "id": "123", "type": "action.devices.types.CAMERA", "traits": [ "action.devices.traits.CameraStream" ], "name": { "defaultNames": [ "Sirius Cybernetics Corporation 3000" ], "name": "Front Camera", "nicknames": [ "Camera" ] }, "willReportState": false, "attributes": { "cameraStreamSupportedProtocols": [ "hls", "dash" ], "cameraStreamNeedAuthToken": true, "cameraStreamNeedDrmEncryption": false }, "customData": { "fooValue": 74, "barValue": true, "bazValue": "lambtwirl" } } ] } }
Device ERRORS
See the full list of errors and exceptions.
resourceUnavailable
- Any failure related to generating the stream url.