# tracetool Send debug, warning, error traces to an external windows tracetool viewer (located on the bin folder). Viewer You MUST start the viewer before sending traces. You can send basic traces, 2 columns traces, hierachical traces, objects , call stack, image, dump,... you can resend traces, create new pages on the viewer to separate business traces, Watches pages There is a lot of functions to manages traces on the viewer : delete, bookmark, set as current,... The Api is compatible with NodeJs and on a browser (using a script or requireJs), so you can see all your traces on the same computer. Tracetool is also available for Java , Dot Net, Silverlight, C++ , Delphi, Python and any system compatible with ActiveX (windows) **On the tracetool viewer, open the View/Options... menu, select the "framework" section , enable the HTTP port (used for javascript api) and give an UNUSED port like 81** **This port need to be the same on your nodejs application** You can enter a comment on the "TraceTool Title" in the "general" section , like "Tracetool - Http port : 81" The viewer must be on a windows computer and your application on any system suporting nodejs like a raspberry Pi ! In your NodeJs Application, just give the Host and port before sending traces. # Usage ```javascript var ttrace = require('tracetool'); ttrace.host = '127.0.0.1:81'; // note that the default is already 127.0.0.1:81 ttrace.debug.send('hello', 'world') ; ttrace.debug.send('Parent trace').send('Child trace') ; ``` A demo is available in the demo folder See the [codeproject](http://www.codeproject.com/Articles/5498/TraceTool-The-Swiss-Army-Knife-of-Trace) site for all possibilities Everything is opensource