public ExpressAppHandlerConfig(ExpressApp app, IRouterMatcher <This <IRouter> > config)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
_app = app;
_config = config;
}
private static ExpressApp InitExpressApp()
{
// We can still use "System.Console.Write()" and "System.Console.WriteLine()" -
// they will be translated to "console.log()" function. However, NodeJS always prints "console.log()"
// mesages in separate lines.
// In order to print a message without adding a new line, we can use "process.stdout":
process.stdout.write(">> Init Express App.. ");
try
{
// Create an Express app instance:
var app = new ExpressApp();
// Assign a request handler to the paths:
app.Get["/sqr/:Value"] = (request, response) =>
{
var args = (RequestArgs)request.@params;
var val = args.Value;
var responseTxt = $"sqr({val}) = {val * val}";
response.send.Self(responseTxt);
};
// Another request handler:
app.Get["/sqrt/:Value"] = (request, response) =>
{
var args = (RequestArgs)request.@params;
var val = args.Value;
var responseTxt = $"sqrt({val}) = {Math.Sqrt(val)}";
response.send.Self(responseTxt);
};
System.Console.WriteLine("Done!");
return(app);
}
catch (Exception e)
{
System.Console.WriteLine("Error: " + e.Message);
return(null);
}
}
private static http.Server InitServer(ExpressApp app, int port)
{
process.stdout.write($">> Creating Server on port {port}.. ");
try
{
// Create a Server:
var server = http.createServer(app.AsCreateServerFn());
// Assign Event Handlers:
server.on(node.Literals.listening, () =>
{
System.Console.WriteLine("[Server] Server is started!");
});
server.on(node.Literals.error, err =>
{
System.Console.WriteLine("[Server] Error: " + err.message);
});
server.on(node.Literals.connection, socket =>
{
System.Console.WriteLine($"[Server] Connection established from remote: {socket.remoteAddress}:{socket.remotePort}");
});
// Start listening on the specified port:
server.listen(port);
System.Console.WriteLine("Done!");
return(server);
}
catch (Exception e)
{
System.Console.WriteLine("Error: " + e.Message);
return(null);
}
}