mysql-client

FabioMoreno

Mysql client for nodejs

Build Setup

#Install mysql-client
npm install --save @netsaj/mysql-client

# install dependencies
npm install

Configure

Define a global variable with the params of connection to mysql server

/*index.js file*/

var config = {
    db :{
        host     : 'localhost',
        user     : 'root',
        password : '1234',
        database : 'db_name'
    },
    app: {
        folder : __dirname //root folder app
    }
}
//nodejs globals vars
global.config = config;

Usage

Selects

var DB = require('node_modules/@netsaj/mysql-client')
var db = new DB();

// SELECT ONE

var user = await db.table('users')
.where('email', '=','asd@domain.com')
.first();

// SELECT ALL
var users_list = await db.table('users')
.all();

You can select especific fields of your table

var users_list = await db.table('users')
.select('name, email')
.all();

Where

put the field you wanna filter, one operator (=, >, <, <=, >=, <>) and the value to search

var users_list = await db.table('users')
.where('active', '=', true)
.select('name, email')
.all();

if you need add more fields you can continue put where clouses

var users_list = await db.table('users')
.select('name, email')
.where('active', '=', true)
.where('age', '>', 25)
.all();

the options that you can use be:

• where

.where('age', '>', 25)
//age > 25

• whereNull

.whereNull('age')
// ... age IS NULL

• whereNoNull

.whereNoNull('age')
// ... age IS NOT NULL

• whereOr

.whereOr('age','=',30)
// ... OR age = 30

• whereRaw /whereOrRaw

is used when needs complex expressions

.whereRaw(" LOWER(city) = 'cucuta' ")
// other example with OR
.whereOrRaw(" DATE(create_at) = '2018-10-12' ")

insert

// the json var
var user = {
    name: 'fabio moreno',
    email: 'asd@domain.com',
    age: 25,
    active: true
}
  
// select the table and sent the json to create
cont id = await db.table('users')
.insert(user);
   
    
// return the autoincrement id
console.log(id)
print>_ 10

edit

// the json var
var user = {
    name: 'fabio moreno',
    email: 'das@domain.com',
    age: 30,
    active: false
}
  
// select the table and sent the json to create
cont afect = await db.table('users')
.where('id', '=', 10)
.edit(user);
   
    
// return the numbers of rows that afected by the query
console.log(afect)
print>_ 1

other method is:

cont afect = await db.table('users')
.set('email', 'das@domain.com')
.set('age',30)
.set('active',false)
.where('id', '=',10)
.update()
   
// return the numbers of rows that afected by the query
console.log(afect)
print>_ 1

delete

cont afect = await db.table('users')
.where('email', 'like', 'das@%')
.delete()
  
// return the numbers of rows that afected by the query
console.log(afect)
print>_ 1

=======================

Copyright (c) 2018, Fabio Moreno fabiomoreno@outlook.com

Licence ISC