Grunt

Posted by On 2月 19, 2015 0 Comment

Grunt

Grunt is The JavaScript Task Runner. link(Grunt).

Work with express
In express passport sample, grunt is used to add data into mongodb(seed)

Install

npm package

npm install -g grunt-cli

Check installation

grunt --version
grunt --help

Example in Express

Add grunt package in your project.

"devDependencies": {
    "grunt": "*"
}

I added after dependencies. dev means development.

I found good sample in passport-local
passport-local/examples/passport-local has Grunt example.
Grunt is used to add data into mongodb.
Prepare Gruntfile.js in your project root.
registerTask is key for task.

I use grunt task to populate test data to test db related work.
That is useful.

Sample(Gruntfile.js)

var db = require('./config/dbconfig');  // mongo connection 
var userdb = require('./config/user');  // database schema

module.exports = function(grunt) {

  // Example 
  grunt.registerTask('addUserOne','Add users to the database', function() {
        grunt.task.run('addUser:ito:atmarkplant@gmail.com:123455');
  });

  grunt.registerTask('addUser', 'Add users', function(name, email, password){
        var user = new userdb.userModel({
            name: name,
            email: email,
            password: password,
        });

        var done = this.async();
        user.save(function(err){
            if (err) {
                console.log('Error: ' + err);
                done(false);
            }
            else {
                console.log('saved user: ' + user.email);
                done();
            }
        });
    });

    grunt.registerTask('cleanUser', 'Clean user data', function() {
        var done = this.async();
        userdb.userModel.remove({}, function(err){
            if (err) {
                console.log(err);
                done(false);
            }
            else {
                console.log('Remove all users');
                done();
            }
        });
    });

});

I added user data population and delete operation.

Run grunt task on your project root.

grunt taskname

taskname is your task name in express
“addUserOne” is grunt task

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