A pure node.js JavaScript Client implementing the MySQL protocol.
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npm install mysql
Important: If you are upgrading from 0.9.1 or below, there have been backwards incompatible changes in the API. Please read the upgrading guide.
var mysql = require('mysql');
var TEST_DATABASE = 'nodejs_mysql_test';
var TEST_TABLE = 'test';
var client = mysql.createClient({
user: 'root',
password: 'root',
});
client.query('CREATE DATABASE '+TEST_DATABASE, function(err) {
if (err && err.number != mysql.ERROR_DB_CREATE_EXISTS) {
throw err;
}
});
// If no callback is provided, any errors will be emitted as `'error'`
// events by the client
client.query('USE '+TEST_DATABASE);
client.query(
'CREATE TEMPORARY TABLE '+TEST_TABLE+
'(id INT(11) AUTO_INCREMENT, '+
'title VARCHAR(255), '+
'text TEXT, '+
'created DATETIME, '+
'PRIMARY KEY (id))'
);
client.query(
'INSERT INTO '+TEST_TABLE+' '+
'SET title = ?, text = ?, created = ?',
['super cool', 'this is a nice text', '2010-08-16 10:00:23']
);
var query = client.query(
'INSERT INTO '+TEST_TABLE+' '+
'SET title = ?, text = ?, created = ?',
['another entry', 'because 2 entries make a better test', '2010-08-16 12:42:15']
);
client.query(
'SELECT * FROM '+TEST_TABLE,
function selectCb(err, results, fields) {
if (err) {
throw err;
}
console.log(results);
console.log(fields);
client.end();
}
);Creates a new client instance. Any client property can be set using the
options object.
The host to connect to.
The port to connect to.
The username to authenticate as.
The password to use.
The name of the database to connect to (optional).
Prints incoming and outgoing packets, useful for development / testing purposes.
Connection flags send to the server.
Sends a sql query to the server. '?' characters can be used as placeholders
for an array of params that will be safely escaped before sending the final
query.
This method returns a Query object which can be used to stream incoming row
data.
Warning: sql statements with multiple queries separated by semicolons
are not supported yet.
Sends a ping command to the server.
Same as issuing a 'USE <database>' query.
Returns some server statistics provided by MySql.
Allows to safely insert a list of params into a sql string using the
placeholder mechanism described above.
Escapes a single val for use inside of a sql string.
Forces the client connection to be destroyed right away. This is not a nice way to terminate the connection, use with caution.
Schedule a COM_QUIT packet for closing the connection. All currently queued queries will still execute before the graceful termination of the connection is attempted.
When the client has no callback / delegate for an error, it is emitted with this event instead.
Query objects are not meant to be invoked manually. To get a query object, use
the client.query API.
Emitted when mysql returns an error packet for the query.
Emitted upon receiving a field packet from mysql.
Emitted upon receiving a row. An option for streaming the contents of the row itself will be made available soon.
Emitted once the query is finished. In case there is no result set, a result
parameter is provided which contains the information from the mysql OK packet.
This module is written entirely in JavaScript. There is no dependency on external C libraries such as libmysql. That means you don't have to compile this module at all.
client.query('INSERT INTO my_table SET title = ?', function(err, info) {
console.log(info.insertId);
});
At this point the module is ready to be tried out, but a lot of things are yet to be done:
- Implement retry
- Pause / resume
- Remaining mysql commands
- Prepared Statements
- Packet's > 16 MB
- Compression
- Decide how to handle queries with multiple statements
Click here for a full list of contributors.
- Joyent - Main sponsor, you should check out their node.js hosting.
- pinkbike.com - The most awesome biking site there is
This is a rather large project requiring a significant amount of my limited resources.
If your company could benefit from a well-engineered non-blocking mysql driver, and wants to support this project, I would greatly appriciate any sponsorship you may be able to provide. All sponsors will get lifetime display in this readme, priority support on problems, and votes on roadmap decisions. If you are interested, contact me at felix@debuggable.com for details.
Of course I'm also happy about code contributions. If you're interested in working on features, just get in touch so we can talk about API design and testing.
- The underlaying socket connection is now managed implicitly rather than explicitly.
- Check the upgrading guide for a full list of changes.
- Fix issue #49 /
client.escape()throwing exceptions on objects. (Nick Payne) - Drop < v0.4.x compatibility. From now on you need node v0.4.x to use this module.
These releases were done before starting to maintain the above Changelog:
node-mysql is licensed under the MIT license.