larvituser

larvituser

User module for node.js

Basic usage

First fire up the library connections like this:

const	userLib = require('larvituser');

userLib.dataWriter.mode = 'master'; // Used for standalone use. If multiple applications connect via rabbitMQ the other should be "slave"

Create a new user in the database, do like this:

const userData = {
	'firstname': 'Nisse',
	'lastname': 'Nilsson',
	'role': [
		'user',
		'subscriber'
	]
}

userLib.create('myUsername', 'myPassword', userData, function (err, user) {
	console.log('New user UUID: ' + user.uuid);
});

To fetch a user from database based on username and password, do like this:

userLib.fromUserAndPass('myUsername', 'myPassword', function (err, user) {
	if (err) {
		throw err;
	}

	if ( ! user) {
		// No match found, or other more serious error
	} else {
		console.log('Fetched user ID: ' + user.id);
	}
});

List multiple users

const	users	= new userLib.Users();

users.get(function (err, userList) {
	if (err) throw err;

	console.log(userList); // An array of objects
});

Get distinct values for field from all users

const	users	= new userLib.Users();

users.getFieldData('fieldName', function (err, result) {
	if (err) throw err;

	console.log(userList); // An array of strings
});

Advanced usage

Add data to a user

userLib.addUserDataField(userUuid, fieldName, fieldValue, function (err) {
	// Field have been added
});

Check a password for validity

userLib.checkPassword('passwordToTest', 'theHashToTestAgainst', function (err, result) {
	// Result being either true or false
});

Create a new user

userLib.create('username', 'password', {'firstname': 'John', 'lastname': 'Smith'}, function (err, user) {
	console.log(user.uuid); // 91f15599-c1fa-4051-9e0e-906cab9819fe (or rather, a random Uuid)
});

Or set an Uuid manually like this:

userLib.create('username', 'password', {'firstname': 'John', 'lastname': 'Smith'}, 'f9684592-b245-42fa-88c6-9f16b9236ac3', function (err, user) {
	console.log(user.uuid); // f9684592-b245-42fa-88c6-9f16b9236ac3
});

Fetch a user based on a field

Will fetch the first occurance in the database with this field name and field value.

userLib.fromField('firstname', 'John', function (err, user) {
	console.log(user.uuid); // f9684592-b245-42fa-88c6-9f16b9236ac3
});

Fetch a user based on several fields

Will fetch the first occurance in the database that matches all these field names and field values

userLib.fromFields({'firstname': 'John', 'lastname': 'Smith'}, function (err, user) {
	console.log(user.uuid); // f9684592-b245-42fa-88c6-9f16b9236ac3
});

Fetch a user based on just username

userLib.fromUsername('username', function (err, user) {
	console.log(user.uuid); // f9684592-b245-42fa-88c6-9f16b9236ac3 or user will be false if no user is found
});

Fetch a user from Uuid

userLib.fromUuid('f9684592-b245-42fa-88c6-9f16b9236ac3', function (err, user) {
	console.log(user.uuid); // f9684592-b245-42fa-88c6-9f16b9236ac3
});

Get field data from a user

userLib.getFieldData('f9684592-b245-42fa-88c6-9f16b9236ac3', 'firstname', function (err, data) {
	console.log(data); // ['John'] - Observe this will always be an array with values, since a field can hold several values
});

Replace user fields for a user

IMPORTANT!!! Will clear all data not given in the fields parameter

userLib.replaceUserFields('f9684592-b245-42fa-88c6-9f16b9236ac3', {'lastname': ['Smith', 'Johnsson']}, function (err) {
	// The field "lastname" will now be replaced with the two values "Smith" and "Johnsson"
	// And all other fields will be removed

	userLib.getFieldData('f9684592-b245-42fa-88c6-9f16b9236ac3', 'lastname', function (err, data) {
		console.log(data); // ['Smith', 'Johnsson']
	});
});

Remove a field from a user

userLib.rmUserField('f9684592-b245-42fa-88c6-9f16b9236ac3', 'lastname', function (err) {
	userLib.fromUuid('f9684592-b245-42fa-88c6-9f16b9236ac3', function (err, user) {
		console.log(user.fields); // {'firstname': ['John']}
	});
});

Set password for a user

userLib.setPassword('f9684592-b245-42fa-88c6-9f16b9236ac3', 'newSuperSecretPwd', function (err) {
	// Now the users password is updated to "newSuperSecretPwd"
});

To disable a login, use boolean false as the new password:

userLib.setPassword('f9684592-b245-42fa-88c6-9f16b9236ac3', false, function (err) {
	// This user can no longer login
});

Set username for a user

userLib.setUsername('f9684592-b245-42fa-88c6-9f16b9236ac3', 'theNewUsername', function (err) {
	// Now the users username is updated to "theNewUsername"
});

Tests

Run tests with mocha, make sure to have an empty database configured for tests to pass correctly!

The default config file will be application path/config/db_test.json

Or a custom one can be used by running

mocha test/test.js /path/to/config/db_another.json