diff --git a/log4js/log4js-tests.ts b/log4js/log4js-tests.ts
index e18ad7862..8540b6f21 100644
--- a/log4js/log4js-tests.ts
+++ b/log4js/log4js-tests.ts
@@ -1,4 +1,6 @@
 /// <reference path="./log4js.d.ts" />
+/// <reference path="../express/express.d.ts" />
+
 import log4js = require('log4js');
 
 log4js.addAppender(log4js.appenders.file('logs/cheese.log'), 'cheese');
@@ -25,3 +27,32 @@ log4js.configure({
 
 var defaultLogger = log4js.getDefaultLogger();
 defaultLogger.debug('Got cheese.');
+
+
+import express = require('express');
+var app = express();
+app.configure(() => {
+  app.use(log4js.connectLogger(logger, { level: log4js.levels.INFO, format: ':method :url' }));
+});
+app.get('/', function(req, res) {
+  res.send('hello world');
+});
+app.listen(5000);
+
+log4js.configure({
+  "appenders": [
+    {
+      "type": "console",
+      "layout": {
+        "type": "pattern",
+        "pattern": "%d %p %c - %m"
+      }
+    }
+  ],
+  "levels": {
+    "[all]": "INFO",
+    "category1": "ERROR",
+    "category2": "DEBUG"
+  }
+});
+
diff --git a/log4js/log4js.d.ts b/log4js/log4js.d.ts
index 869a10c58..aa99aad67 100644
--- a/log4js/log4js.d.ts
+++ b/log4js/log4js.d.ts
@@ -4,6 +4,8 @@
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 declare module "log4js" {
+  import express = require('express');
+
   /**
    * Get a logger instance. Instance is cached on categoryName level.
    *
@@ -12,9 +14,20 @@ declare module "log4js" {
    * @static
    */
   export function getLogger(categoryName?: string): Logger;
+  export function getBufferedLogger(categoryName?: string): Logger;
+
+  /**
+   * Has a logger instance cached on categoryName.
+   *
+   * @param   {String} [categoryName] name of category to log to.
+   * @returns {boolean} contains logger for the category
+   * @static
+   */
+  export function hasLogger(categoryName: string): boolean;
 
   /**
    * Get the default logger instance.
+   *
    * @returns {Logger} instance of default logger
    * @static
    */
@@ -29,6 +42,14 @@ declare module "log4js" {
    */
   export function addAppender(...appenders: any[]): void;
 
+  /**
+   * Claer configured appenders
+   *
+   * @returns {void}
+   * @static
+   */
+  export function clearAppenders(): void;
+
   /**
    * Shutdown all log appenders. This will first disable all writing to appenders
    * and then call the shutdown function each appender.
@@ -40,18 +61,68 @@ declare module "log4js" {
    */
   export function shutdown(cb: Function): void;
 
-  export function configure(config: any, options?: any): void;
+  export function configure(config: IConfig, options?: any): void;
+
+  export function setGlobalLogLevel(level: string): void;
+  export function setGlobalLogLevel(level: Level): void;
+
+
+  /**
+   * Create logger for connect middleware.
+   *
+   *
+   * @returns {express.Handler} Instance of middleware.
+   * @static
+   */
+  export function connectLogger(logger: Logger, options: { format?: string; level?: string; nolog?: any; }): express.Handler;
+  export function connectLogger(logger: Logger, options: { format?: string; level?: Level; nolog?: any; }): express.Handler;
+
 
   export var appenders: any;
+  export var levels: {
+    ALL: Level;
+    TRACE: Level;
+    DEBUG: Level;
+    INFO: Level;
+    WARN: Level;
+    ERROR: Level;
+    FATAL: Level;
+    OFF: Level;
+
+    toLevel(level: string, defaultLevel?: Level): Level;
+    toLevel(level: Level, defaultLevel?: Level): Level;
+  };
 
   export interface Logger {
     setLevel(level: string): void;
+    setLevel(level: Level): void;
 
-    trace(message: string): void;
-    debug(message: string): void;
-    info(message: string): void;
-    warn(message: string): void;
-    error(message: string): void;
-    fatal(message: string): void;
+    trace(message: string, ...args: any[]): void;
+    debug(message: string, ...args: any[]): void;
+    info(message: string, ...args: any[]): void;
+    warn(message: string, ...args: any[]): void;
+    error(message: string, ...args: any[]): void;
+    fatal(message: string, ...args: any[]): void;
+  }
+
+  export interface Level {
+    isEqualTo(other: string): boolean;
+    isEqualTo(otherLevel: Level): boolean;
+    isLessThanOrEqualTo(other: string): boolean;
+    isLessThanOrEqualTo(otherLevel: Level): boolean;
+    isGreaterThanOrEqualTo(other: string): boolean;
+    isGreaterThanOrEqualTo(otherLevel: Level): boolean;
+  }
+
+  export interface IConfig {
+    appenders: IAppenderConfig[];
+    levels?: { [category: string]: string };
+    replaceConsole?: boolean;
+  }
+  export interface IAppenderConfig {
+    type: string;
+    category?: string[];
+    // etc...
   }
 }
+