bh-mysql v4.0.0
Installation
Use npm command in order to install bh-mysql module:
npm install --save bh-mysql
Use mysql with NodeJs
The bh-mysql class allows to manage a mysql connection inside a NodeJs project. It implements the methods required for the BH unified handler compliance:
connect(settings) : create a new connection to a mysql server. Settings can be a bh-section object or a path to a configuration file. If settings is not specified a default configuration file will be used (./conf/mysql.conf.json). Connect returns a promise.
Settings or configuration file format:
{ "host" : "127.0.0.1", "user" : "test", "pass" : "test", "base" : "test" }
close() : close the current connection to mysql. Close returns a promise.
query(settings) : execute a query described by settings in the current connection. Query returns a promise.
Settings format:
{ "text" : "SELECT * FROM Test where id >= ? AND i =< ?", "args" : [1, 10] }
transaction() : open a new transaction session in the current conection. Transaction returns a promise.
- inTransaction() : returns true if a transaction session is openend, otherwise false.
- commit() : commit the current transaction session in the current connection. Commit returns a promise.
- rollback() : rollback the current transaction session in the current connection. Rollback returns a promise.
Usage example:
var MysqlClass = require('bh-mysql');
var SectionClass = require('bh-section');
var mysql = new MysqlClass();
mysql.connect() // Read ./conf/mysql.conf.json
.then(function() {
mysql.query(new SectionClass({
'text' : 'SELECT * FROM Test',
'args' : []
}))
.then(function(result) {
console.log(result);
mysql.close();
})
.catch(function(error) {
console.error(error);
mysql.close();
});
})
.catch(function(error) {
console.error(error);
});
5 years ago