How to show error message on same page in node js?

Question

I am using post method to submit form in node js. Now when I submit the form, I want to show the error message from node server if login fails. I am setting the message as res.send("") but it is showing message on another window. So please help me to solve this?

Show us some code, and what are you really looking to changes... — anolsi
– anolsi, Commented Jan 27, 2016 at 11:10

mrvautin · Accepted Answer · 2016-01-27 21:20:42Z

1

You could make an Ajax call from your form to your node server API, then depending on the result from your server, show a message.

Jquery example:

$.ajax({
       method: "POST",
       url: "/api"
       data: {login_data_here}
})
.success(function(msg) {
       // redirect to admin area etc
})
.error(function(msg) {
       // show login for with a failure message
});

Node API server would return something like this:

res.writeHead(200, { 'Content-Type': 'application/text' }); 
res.end('Login Success');

Or this on fail:

res.writeHead(400, { 'Content-Type': 'application/text' }); 
res.end('Login Fail');

edited Jan 27, 2016 at 21:20

answered Jan 27, 2016 at 11:19

mrvautin

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vodolaz095 · Accepted Answer · 2016-01-27 11:25:07Z

0

You can use this module for persisted flash messages between page redirects - https://www.npmjs.com/package/connect-flash

answered Jan 27, 2016 at 11:25

vodolaz095

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