logging

Node.js applications hosted in IIS capture stdout and stderr (console.log) and make the output available over HTTP.

1. output from console.log (or any stdout or stderr output) from a node.js application is captured, stored in a file on disk, and available through HTTP
2. By default, given a node.js application at http://localhost/node/logging/hello.js, the logs are available at http://localhost/node/logging/iisnode/.
3. Check the configuration sample to customize the logging behavior.

code

var http = require('http');

http.createServer(function (req, res) {
    console.log('A new request arrived with HTTP headers: ' + JSON.stringify(req.headers));
    res.writeHead(200, { 'Content-Type': 'text/html' });
    res.end('Hello, world! [logging sample]');
}).listen(process.env.PORT);

console.log('Application has started at location ' + process.env.PORT);

web.config

<configuration>
  <system.webServer>

    <!-- indicates that the hello.js file is a node.js application 
    to be handled by the iisnode module -->

    <handlers>
      <add name="iisnode" path="hello.js" verb="*" modules="iisnode" />
    </handlers>
    
  </system.webServer>
</configuration>