snapcast/doc/json_rpc_api/control.md
2021-12-15 22:15:42 +01:00

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Markdown

# Snapcast JSON RPC Control API
## Raw TCP sockets
Snapcast can be controlled with a [JSON-RPC 2.0](http://www.jsonrpc.org/specification)
API over a raw TCP-Socket interface on port 1705.
Single JSON Messages are new line delimited ([ndjson](http://ndjson.org/)).
For simple tests you can fire JSON commands on a telnet connection and watch
Notifications coming in:
```json
$ telnet localhost 1705
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
// Call "Server.GetRPCVersion"
{"id":8,"jsonrpc":"2.0","method":"Server.GetRPCVersion"}
// Response is:
{"id":8,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
// Connect a client
{"jsonrpc":"2.0","method":"Client.OnConnect","params":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488065507,"usec":820050},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.11.0-beta-1"}},"id":"00:21:6a:7d:74:fc"}}
```
## HTTP
Snapcast can also be controlled on port 1780 using the HTTP protocol to (1) send
a single `POST` request or (2) create a long-lived `WebSocket`.
For simple tests, you can fire JSON commands directly within your browser.
One-shot `POST` requests receive only the immediate response of the request,
whereas long-lived `WebSocket`s will also receive Notifications similar to the
telnet connection above:
```js
const host = '127.0.0.1:1780';
const request = {
'id': 0,
'jsonrpc': '2.0',
'method': 'Server.GetRPCVersion'
};
// XHR
const xhr = new XMLHttpRequest();
xhr.open('POST', `http://${host}/jsonrpc`);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.setRequestHeader('Accept', 'application/json');
xhr.addEventListener('load', ({ currentTarget: xhr }) => {
console.log(JSON.parse(xhr.responseText)); // {"id":1,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
});
xhr.send(JSON.stringify(++request.id && request));
// Fetch
fetch(`http://${host}/jsonrpc`, {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify(++request.id && request)
})
.then(response => response.json())
.then(content => console.log(content)); // {"id":2,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
// Fetch with await/async
const response = await fetch(`http://${host}/jsonrpc`, {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify(++request.id && request)
});
const content = await response.json();
console.log(content); // {"id":3,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
// WebSocket
const ws = new WebSocket(`ws://${host}/jsonrpc`);
ws.addEventListener('message', (message) => {
console.log(JSON.parse(message.data)); // {"id":4,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
});
ws.addEventListener('open', () => ws.send(JSON.stringify(++request.id && request)));
/*
WebSockets receive Notifications of events. Connect a client, and you will eventually see in your console:
{
"jsonrpc": "2.0",
"method": "Client.OnConnect",
"params": { ... }
}
*/
```
## Requests and Notifications
The client that sends a "Set" command will receive a Response, while the other connected control clients will receive a Notification "On" event.
Commands can be sent in a [Batch](http://www.jsonrpc.org/specification#batch). The server will reply with a Batch and send a Batch notification to the other clients. This way the volume of multiple Snapclients can be changed with a single Batch Request.
Each JSON RPC request and response contains an identifier in the `id` field, which can be used to link responses to the request that caused them, as defined in the JSON RPC specification:
> An identifier established by the Client that MUST contain a String, Number, or NULL value if included.
> If it is not included it is assumed to be a notification. The value SHOULD normally not be Null [1] and Numbers SHOULD NOT contain fractional parts [2]
Clients should call `Server.GetStatus` to get the complete picture.
The Server JSON object contains a list of Groups and Streams. Every Group holds a list of Clients and a reference to a Stream. Clients, Groups and Streams are referenced in the "Set" commands by their `id`.
### Example JSON objects
#### Client
```json
{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488026416,"usec":135973},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}
```
#### Volume
```json
{"muted":false,"percent":74}
```
#### Group
```json
{"clients":[{"config":{"instance":2,"latency":10,"name":"Laptop","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488026485,"usec":644997},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488026481,"usec":223747},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":true,"name":"","stream_id":"stream 1"}
```
#### Stream
```json
{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}}
```
#### Server
```json
{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025751,"usec":654777},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}
```
### Requests
* Client
* [Client.GetStatus](#clientgetstatus)
* [Client.SetVolume](#clientsetvolume)
* [Client.SetLatency](#clientsetlatency)
* [Client.SetName](#clientsetname)
* Group
* [Group.GetStatus](#groupgetstatus)
* [Group.SetMute](#groupsetmute)
* [Group.SetStream](#groupsetstream)
* [Group.SetClients](#groupsetclients)
* [Group.SetName](#groupsetname)
* Server
* [Server.GetRPCVersion](#servergetrpcversion)
* [Server.GetStatus](#servergetstatus)
* [Server.DeleteClient](#serverdeleteclient)
* Stream
* [Stream.AddStream](#streamaddstream)
* [Stream.RemoveStream](#streamremovestream)
* [Stream.Control](#streamcontrol)
* [Stream.SetProperty](#streamsetproperty)
### Notifications
* Client
* [Client.OnConnect](#clientonconnect)
* [Client.OnDisconnect](#clientondisconnect)
* [Client.OnVolumeChanged](#clientonvolumechanged)
* [Client.OnLatencyChanged](#clientonlatencychanged)
* [Client.OnNameChanged](#clientonnamechanged)
* Group
* [Group.OnMute](#grouponmute)
* [Group.OnStreamChanged](#grouponstreamchanged)
* [Group.OnNameChanged](#grouponnamechanged)
* Stream
* [Stream.OnProperties](#streamonproperties)
* [Stream.OnUpdate](#streamonupdate)
* Server
* [Server.OnUpdate](#serveronupdate)
## Requests
### Client.GetStatus
#### Request
```json
{"id":8,"jsonrpc":"2.0","method":"Client.GetStatus","params":{"id":"00:21:6a:7d:74:fc"}}
```
#### Response
```json
{"id":8,"jsonrpc":"2.0","result":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488026416,"usec":135973},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}}}
```
### Client.SetVolume
#### Request
```json
{"id":"8","jsonrpc":"2.0","method":"Client.SetVolume","params":{"id":"00:21:6a:7d:74:fc","volume":{"muted":false,"percent":74}}}
```
#### Response
```json
{"id":"8","jsonrpc":"2.0","result":{"volume":{"muted":false,"percent":74}}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Client.OnVolumeChanged","params":{"id":"00:21:6a:7d:74:fc","volume":{"muted":false,"percent":74}}}
```
### Client.SetLatency
#### Request
```json
{"id":7,"jsonrpc":"2.0","method":"Client.SetLatency","params":{"id":"00:21:6a:7d:74:fc#2","latency":10}}
```
#### Response
```json
{"id":7,"jsonrpc":"2.0","result":{"latency":10}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Client.OnLatencyChanged","params":{"id":"00:21:6a:7d:74:fc#2","latency":10}}
```
### Client.SetName
#### Request
```json
{"id":6,"jsonrpc":"2.0","method":"Client.SetName","params":{"id":"00:21:6a:7d:74:fc#2","name":"Laptop"}}
```
#### Response
```json
{"id":6,"jsonrpc":"2.0","result":{"name":"Laptop"}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Client.OnNameChanged","params":{"id":"00:21:6a:7d:74:fc#2","name":"Laptop"}}
```
### Group.GetStatus
#### Request
```json
{"id":5,"jsonrpc":"2.0","method":"Group.GetStatus","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1"}}
```
#### Response
```json
{"id":5,"jsonrpc":"2.0","result":{"group":{"clients":[{"config":{"instance":2,"latency":10,"name":"Laptop","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488026485,"usec":644997},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":74}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488026481,"usec":223747},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":true,"name":"","stream_id":"stream 1"}}}
```
### Group.SetMute
#### Request
```json
{"id":5,"jsonrpc":"2.0","method":"Group.SetMute","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","mute":true}}
```
#### Response
```json
{"id":5,"jsonrpc":"2.0","result":{"mute":true}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Group.OnMute","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","mute":true}}
```
### Group.SetStream
#### Request
```json
{"id":4,"jsonrpc":"2.0","method":"Group.SetStream","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","stream_id":"stream 1"}}
```
#### Response
```json
{"id":4,"jsonrpc":"2.0","result":{"stream_id":"stream 1"}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Group.OnStreamChanged","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","stream_id":"stream 1"}}
```
### Group.SetClients
#### Request
```json
{"id":3,"jsonrpc":"2.0","method":"Group.SetClients","params":{"clients":["00:21:6a:7d:74:fc#2","00:21:6a:7d:74:fc"],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1"}}
```
#### Response
```json
{"id":3,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025901,"usec":864472},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":100}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025905,"usec":45238},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Server.OnUpdate","params":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025901,"usec":864472},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":100}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025905,"usec":45238},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
```
### Group.SetName
#### Request
```json
{"id":7,"jsonrpc":"2.0","method":"Group.SetName","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","name":"GroundFloor"}}
```
#### Response
```json
{"id":7,"jsonrpc":"2.0","result":{"name":"GroundFloor"}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Group.OnNameChanged","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","name":"GroundFloor"}}
```
### Server.GetRPCVersion
#### Request
```json
{"id":8,"jsonrpc":"2.0","method":"Server.GetRPCVersion"}
```
#### Response
```json
{"id":8,"jsonrpc":"2.0","result":{"major":2,"minor":0,"patch":0}}
```
### Server.GetStatus
#### Request
```json
{"id":1,"jsonrpc":"2.0","method":"Server.GetStatus"}
```
#### Response
```json
{"id":1,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025696,"usec":578142},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":81}},"connected":true,"host":{"arch":"x86_64","ip":"192.168.0.54","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025696,"usec":611255},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
```
### Server.DeleteClient
#### Request
```json
{"id":2,"jsonrpc":"2.0","method":"Server.DeleteClient","params":{"id":"00:21:6a:7d:74:fc"}}
```
#### Response
```json
{"id":2,"jsonrpc":"2.0","result":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025751,"usec":654777},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
```
#### Notification
```json
{"jsonrpc":"2.0","method":"Server.OnUpdate","params":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025751,"usec":654777},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
```
### Stream.AddStream
#### Request
```json
{"id":8,"jsonrpc":"2.0","method":"Stream.AddStream","params":{"streamUri":"pipe:///tmp/snapfifo?name=stream 2"}}
```
#### Response
```json
{"id":8,"jsonrpc":"2.0","result":{"stream_id":"stream 2"}}
```
### Stream.RemoveStream
#### Request
```json
{"id":8,"jsonrpc":"2.0","method":"Stream.RemoveStream","params":{"id":"stream 2"}}
```
#### Response
```json
{"id":8,"jsonrpc":"2.0","result":{"stream_id":"stream 2"}}
```
### Stream.Control
#### Request
```json
{"id": 1, "jsonrpc": "2.0", "method": "Stream.Control", "params": {"command": "<command>", "params": { "<param 1>": <value 1>, "<param 2>": <value 2>}}}
{"id":4,"jsonrpc":"2.0","method":"Stream.Control","params":{"id":"Spotify", "command": "next", params: {}}}
{"id":4,"jsonrpc":"2.0","method":"Stream.Control","params":{"id":"Spotify", "command": "seek", "param": "60"}}
```
#### Supported `command`s
* `Play`: Start playback
* `params`: none
* `Pause`: Stop playback
* `params`: none
* `PlayPause`: Toggle play/pause
* `params`: none
* `Stop`: Stop playback
* `params`: none
* `Next`: Skip to next track
* `params`: none
* `Previous`: Skip to previous track
* `params`: none
* `Seek`: Seek forward or backward in the current track
* `params`:
* `Offset`: [float] seek offset in seconds
* `SetPosition`: Set the current track position in seconds
* `params`:
* `Position`: [float] the new track position
* `TrackId`: [string] the optional currently playing track's identifier
#### Response
```json
TODO
```
### Stream.SetProperty
#### Request
```json
{"id": 1, "jsonrpc": "2.0", "method": "Stream.SetProperty", "params": {"id": "Pipe", "property": property, "value": value}}
{"id":4,"jsonrpc":"2.0","method":"Stream.Control","params":{"id":"Spotify", "command": "next", params: {}}}
{"id":4,"jsonrpc":"2.0","method":"Stream.Control","params":{"id":"Spotify", "command": "seek", "param": "60000"}}
```
#### Supported `property`s
* `loopStatus`: [string] the current repeat status, one of:
* `none`: the playback will stop when there are no more tracks to play
* `track`: the current track will start again from the begining once it has finished playing
* `playlist`: the playback loops through a list of tracks
* `shuffle`: [bool] play playlist in random order
* `volume`: [int] voume in percent, valid range [0..100]
* `rate`: [float] The current playback rate, valid range (0..)
#### Response
```json
TODO
```
## Notifications
### Client.OnConnect
```json
{"jsonrpc":"2.0","method":"Client.OnConnect","params":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":81}},"connected":true,"host":{"arch":"x86_64","ip":"192.168.0.54","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025524,"usec":876332},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},"id":"00:21:6a:7d:74:fc"}}
```
### Client.OnDisconnect
```json
{"jsonrpc":"2.0","method":"Client.OnDisconnect","params":{"client":{"config":{"instance":1,"latency":0,"name":"","volume":{"muted":false,"percent":81}},"connected":false,"host":{"arch":"x86_64","ip":"192.168.0.54","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc","lastSeen":{"sec":1488025523,"usec":814067},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}},"id":"00:21:6a:7d:74:fc"}}
```
### Client.OnVolumeChanged
```json
{"jsonrpc":"2.0","method":"Client.OnVolumeChanged","params":{"id":"00:21:6a:7d:74:fc","volume":{"muted":false,"percent":74}}}
```
### Client.OnLatencyChanged
```json
{"jsonrpc":"2.0","method":"Client.OnLatencyChanged","params":{"id":"00:21:6a:7d:74:fc#2","latency":10}}
```
### Client.OnNameChanged
```json
{"jsonrpc":"2.0","method":"Client.OnNameChanged","params":{"id":"00:21:6a:7d:74:fc#2","name":"Laptop"}}
```
### Group.OnMute
```json
{"jsonrpc":"2.0","method":"Group.OnMute","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","mute":true}}
```
### Group.OnStreamChanged
```json
{"jsonrpc":"2.0","method":"Group.OnStreamChanged","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","stream_id":"stream 1"}}
```
### Group.OnNameChanged
```json
{"jsonrpc":"2.0","method":"Group.OnNameChanged","params":{"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","name":"GroundFloor"}}
```
### Stream.OnUpdate
```json
{"jsonrpc":"2.0","method":"Stream.OnUpdate","params":{"id":"stream 1","stream":{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}}}}
```
### Stream.OnProperties
```json
{"jsonrpc":"2.0","method":"Stream.OnProperties","params":{"id":"stream 1", "metadata": {"album": "some album", "artist": "some artist", "track": "some track"...}}}
{"jsonrpc":"2.0","method":"Stream.OnProperties","params":{"id":"Meta","properties":{"canControl":true,"canGoNext":true,"canGoPrevious":true,"canPause":true,"canPlay":true,"canSeek":true,"loopStatus":"none","metadata":{"album":"Doldinger","albumArtist":["Klaus Doldinger's Passport"],"artUrl":"http://coverartarchive.org/release/0d4ff56b-2a2b-43b5-bf99-063cac1599e5/16940576164-250.jpg","artist":["Klaus Doldinger's Passport feat. Nils Landgren"],"contentCreated":"2016","duration":305.2929992675781,"genre":["Jazz"],"title":"Soul Town","trackId":"7","trackNumber":6,"url":"Klaus Doldinger's Passport - Doldinger (2016)/06 - Soul Town.mp3"},"playbackStatus":"playing","position":221.82400512695313,"shuffle":false,"volume":97}}}
```
### Server.OnUpdate
```json
{"jsonrpc":"2.0","method":"Server.OnUpdate","params":{"server":{"groups":[{"clients":[{"config":{"instance":2,"latency":6,"name":"123 456","volume":{"muted":false,"percent":48}},"connected":true,"host":{"arch":"x86_64","ip":"127.0.0.1","mac":"00:21:6a:7d:74:fc","name":"T400","os":"Linux Mint 17.3 Rosa"},"id":"00:21:6a:7d:74:fc#2","lastSeen":{"sec":1488025751,"usec":654777},"snapclient":{"name":"Snapclient","protocolVersion":2,"version":"0.10.0"}}],"id":"4dcc4e3b-c699-a04b-7f0c-8260d23c43e1","muted":false,"name":"","stream_id":"stream 2"}],"server":{"host":{"arch":"x86_64","ip":"","mac":"","name":"T400","os":"Linux Mint 17.3 Rosa"},"snapserver":{"controlProtocolVersion":1,"name":"Snapserver","protocolVersion":1,"version":"0.10.0"}},"streams":[{"id":"stream 1","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 1","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 1","scheme":"pipe"}},{"id":"stream 2","status":"idle","uri":{"fragment":"","host":"","path":"/tmp/snapfifo","query":{"chunk_ms":"20","codec":"flac","name":"stream 2","sampleformat":"48000:16:2"},"raw":"pipe:///tmp/snapfifo?name=stream 2","scheme":"pipe"}}]}}}
```