Launcher/Launcher/runtime/engine/api.js

var Launcher = LauncherClass.static;
var LauncherConfig = LauncherConfigClass.static;
var HTTPRequest = HTTPRequestClass.static;
var DirBridge = DirBridgeClass.static;
var FunctionalBridge = FunctionalBridgeClass.static;

// Hasher class API imports
var PlayerProfile = PlayerProfileClass.static;
var PlayerProfileTexture = PlayerProfileTextureClass.static;
var ClientProfile = ClientProfileClass.static;
var ClientProfileVersion = ClientProfileVersionClass.static;
var ClientLauncher = ClientLauncherClass.static;
var ClientLauncherParams = ClientLauncherParamsClass.static;
var ServerPinger = ServerPingerClass.static;

// Request class API imports
var Request = RequestClass.static;
var RequestType = RequestTypeClass.static;
var RequestException = RequestExceptionClass.static;
//var PingRequest = PingRequestClass.static;
var AuthRequest = AuthRequestClass.static;
var JoinServerRequest = JoinServerRequestClass.static;
var CheckServerRequest = CheckServerRequestClass.static;
var UpdateRequest = UpdateRequestClass.static;
var LauncherRequest = LauncherRequestClass.static;
var ProfilesRequest = ProfilesRequestClass.static;
var SetProfileRequest = SetProfileRequestClass.static;
var ProfileByUsernameRequest = ProfileByUsernameRequestClass.static;
var ProfileByUUIDRequest = ProfileByUUIDRequestClass.static;
var BatchProfileByUsernameRequest = BatchProfileByUsernameRequestClass.static;
var GetAvailabilityAuthRequest = GetAvailabilityAuthRequestClass.static;

// Hasher class API imports
var FileNameMatcher = FileNameMatcherClass.static;
var HashedDir = HashedDirClass.static;
var HashedFile = HashedFileClass.static;
var HashedEntryType = HashedEntryTypeClass.static;

// Serialization class API imports
var HInput = HInputClass.static;
var HOutput = HOutputClass.static;
var StreamObject = StreamObjectClass.static;
var StreamObjectAdapter = StreamObjectAdapterClass.static;
var EnumSerializer = EnumSerializerClass.static;
var OptionalFile = OptionalFileClass.static;

// Helper class API imports
var CommonHelper = CommonHelperClass.static;
var IOHelper = IOHelperClass.static;
var JVMHelper = JVMHelperClass.static;
var JVMHelperOS = JVMHelperOSClass.static;
var LogHelper = LogHelperClass.static;
var EnvHelper = EnvHelperClass.static;
var SecurityHelper = SecurityHelperClass.static;
var DigestAlgorithm = DigestAlgorithmClass.static;
var VerifyHelper = VerifyHelperClass.static;
var NewLauncherSettings = NewLauncherSettingsClass.static;
var SettingsManager = SettingsManagerClass.static;

var NoHWID = NoHWIDClass.static;
var OshiHWID = OshiHWIDClass.static;

// Helper JS class API imports
var JSApplication = null;
if (typeof JSApplicationClass !== 'undefined') {
    JSApplication = JSApplicationClass.static;
}

// API wrapper
function tryWithResources(closeable, f) {
    try {
        f(closeable);
    } finally {
        IOHelper.close(closeable);
    }
}

function newTask(r) {
    return new javafx.concurrent.Task() { call: r };
}

function newRequestTask(request) {
    return newTask(function() request.request());
}

function startTask(task) {
    FunctionalBridge.startTask(task);
}

function openURL(url) {
    app.getHostServices().showDocument(url.toURI());
}

DirBridge.dir = DirBridge.getLauncherDir(config.dir);
DirBridge.dirStore = DirBridge.getStoreDir(config.dir);
DirBridge.dirProjectStore = DirBridge.getProjectStoreDir(config.dir);
if (!IOHelper.isDir(DirBridge.dir)) {
    java.nio.file.Files.createDirectory(DirBridge.dir);
}
DirBridge.defaultUpdatesDir = DirBridge.dir.resolve("updates");
if (!IOHelper.isDir(DirBridge.defaultUpdatesDir)) {
    java.nio.file.Files.createDirectory(DirBridge.defaultUpdatesDir);
}