Hi All,
I am fairly new to the Node.JS and Javascript for that matter. Something
strange going on in the below code
The below page/code is requested by two different clients. Its all good for
the first request as it logs correct IP of the requested client correctly
every where.
but for the second request, the IP address(reqHostIp) is correct outside
the CLOSURE but inside the CLOSURE BLOCK the value of the IP address is
always of the first request's
I am suspecting this is to do with variable scoping or something of that
sort or is it something else? Do you find anything obviously wrong in the
code
router.get('/', function(req, res)
{
utils.dump("viewer::get - " + __filename);
//var reqHostIp = req.connection.remoteAddress ||
req.headers['x-forwarded-for'];
dbutils.fetchSomeDetals(function(config)
{
//Some code
//Some code
res.render('viewer',
{
//Rendering code
});
//let reqHostIp = req.ip;
var reqHostIp = req.connection.remoteAddress ||
req.headers['x-forwarded-for'];
utils.dump("reqHostIp: " + reqHostIp); //Correct IP logged
//***********CLOSURE***********
(function(reqHostIp)
{
someClass.someFunction(id, ip, metric, function(err, file_name)
{
if (err)
{
utils.dump("viewer::get - comms error: " + err + ", failed");
return;
}
let src = '/tmp/' + file_name;
utils.dump("reqHostIp: " + reqHostIp); // Wrong! Always displays the
previous request's IP
});
})( reqHostIp);
//**************END CLOSURE*******************
utils.dump("reqHostIp: " + reqHostIp); // Correct IP logged
});
});
TIA
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