var hubUrl = "/IoTCenter/hub?group=page";
var connection = new signalR.HubConnectionBuilder().withUrl(hubUrl).build();
function connect() {
    if (connection.state === signalR.HubConnectionState.Disconnected) {
        connection.start().then(function () {
            console.log('signalR 连接成功');
        }).catch(function (err) {
            console.log(err);
            setTimeout(connect, 15 * 1000);
        });
    }
}
connection.on('Connected', function (id) {
    connectionId = id;
    console.log('signalR 连接Id:' + connectionId);
});
connection.on("ServerToClient", function (method, json, to, from) {
    console.log(method+' from:'+from+' to:'+to);
    console.log(json);
    var model = JSON.parse(json);
    if (method === 'NodeEntityUpdated') {
        store.commit('updateNode', model);
    }
    //else if (method === 'NodeEntityInserted') {}
    //else if (method === 'NodeEntityDeleted') {}
    else if (method === 'DeviceEntityInserted') {
        store.commit('insertDevice', model);
    }
    else if (method === 'DeviceEntityUpdated') {
        store.commit('updateDevice', model);
    }
    else if (method === 'DeviceEntityDeleted') {
        store.commit('deleteDevice', model);
    }
});