Post to nodejs and return results

Question

Post to nodejs and return results

8.4k Views Asked by Bobby At 22 October 2024 at 03:46

I have been searching for hours on google for away to post from my client js hosted on my site to a nodejs server, than return those results back to my client side.

This is an example of what I'm trying to accomplish:

<html>
<head>
<script type="text/javascript">
var my_id = <?=$myuserid;?>;
$(function(){
    $.ajax({
        url: 'http://mydomain.com:8001/get_friends',
        dataType: 'JSONP',
        type: 'POST',
        crossDomain: true,
        data: {
            id: my_id
        },
        success: function(data){
            if(data.error===true){
                alert(data.msg);
            } else {
                alert(data.users);
            }
        }
    });
});
</script>
</head>
<body>
</body>
</html>

Than the NodeJS File:

var http = require('http'),
    url = require('url'),
    mysql = require('mysql'),
    sys = require('sys');
var client = mysql.createClient({
    user: 'root',
    password: 'password',
});

http.createServer(function(request, response){
    client.query('USE mydatabase');
    client.query(
        'SELECT * FROM buddy_list WHERE user_id = "This is where I need my post to go"',
        function selectCb(err, results, fields){
            if(err){
                throw err;
            }
            response.writeHead(200, { 'Content-Type' : 'application/json' });
            "Here I need it to feed back results to client script."
            response.end();
            client.end();
    })
}).listen(8001);

Original Q&A

There are 2 best solutions below

chovy On 07 October 2011 at 04:21

response.writeHead(200, { 'Content-Type' : 'application/json' });
response.send( JSON.stringify(results) );

I have not tried this but it looks like what you want. I'm not sure what results, fields have or if there needs to be more data manipulation. I'm assuming "results" is a JSON object.

**fourk** · Accepted Answer

Input sanitation issues aside, here is how you would solve this:

http.createServer(function(request, response){
    request.on('data', function(chunk) {
        dataInput = chunk.toString();
        client.query('USE mydatabase');
        client.query(
            'SELECT * FROM buddy_list WHERE user_id = ' + dataInput,
            function selectCb(err, results, fields){
                if(err){
                    throw err;
                }
                response.writeHead(200, { 'Content-Type' : 'application/json' });
                "Here I need it to feed back results to client script."
                response.end();
                client.end();
        })

    })
}).listen(8001);

Post to nodejs and return results

There are 2 best solutions below

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