grafana/public/app/core/config.ts

import _ from 'lodash';

class Settings {
    datasources: any;
    panels: any;
    appSubUrl: string;
    window_title_prefix: string;
    buildInfo: any;
    new_panel_title: string;
    bootData: any;
    externalUserMngLinkUrl: string;
    externalUserMngLinkName: string;
    externalUserMngInfo: string;
    allowOrgCreate: boolean;
    disableLoginForm: boolean;
    defaultDatasource: string;
    alertingEnabled: boolean;
    authProxyEnabled: boolean;
    ldapEnabled: boolean;
    oauth: any;
    disableUserSignUp: boolean;
    loginHint: any;
    loginError: any;

    constructor(options) {
        var defaults = {
            datasources: {},
            window_title_prefix: 'Grafana - ',
            panels: {},
            new_panel_title: 'Panel Title',
            playlist_timespan: "1m",
            unsaved_changes_warning: true,
            appSubUrl: ""
        };
         _.extend(this, defaults, options);
    }
}

var bootData = (<any>window).grafanaBootData || { settings: {} };
var options = bootData.settings;
options.bootData = bootData;

const config = new Settings(options);
export default config;