POSTing json to express using jQuery

Question

I\'m having an issue when sending JSON data from my client to a node server running express.

Here\'s a simple server that demonstrates my issue:

var expr         


        

Answer 1

$.post sends url-encoded data, so what is really sent is number=1, which then is parsed as well as it can by bodyParser middleware.

To send json you have to use JSON.stringify({number:1}).

Using $.post unfortunately won't set the appropriate Content-Type header (express will handle it anyway), so it's better to use:

$.ajax({
    url: '/', 
    type: 'POST', 
    contentType: 'application/json', 
    data: JSON.stringify({number:1})}
)