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Riyad Amin

Riyad Amin

11 months ago

Build an Autocomplete Search Feature in Node.js with MySQL

Autocomplete search is a feature that suggests search queries to users as they type. It can be found in many popular search engines, such as Google, Bing, and DuckDuckGo. Autocomplete suggestions are generated based on a variety of factors, including the user's search history, the popularity of the search query, and the context of the search.

In this tutorial, we will learn how to create an Ajax autocomplete search feature in Node.js with MySQL. This tutorial will guide you through the entire process, from setting up your development environment to building and deploying your autocomplete search feature. You will learn how to use Node.js to handle Ajax requests, query a MySQL database, and generate autocomplete suggestions. No prior experience with Node.js or MySQL is required.

To build an autocomplete search feature in Node.js with MySQL, follow these steps.

  • Step 1: Create Node Express js App
  • Step 2: Create Database and Table
  • Step 3: Install express ejs body-parser MySQL Modules
  • Step 4: Connect App to MySQL DB
  • Step 5: Create Server.js File And Import Modules
  • Step 6: Create HTML Markup Form
  • Step 7: Create Routes
  • Step 8: Start App Server

Step 1: Create Node Express js App

Execute the following command on terminal to create node js app:

mkdir my-app
cd my-app
npm init -y

Step 2: Create Database and Table

Create database and table; so execute the following sql query to create database and table:

CREATE DATABASE my-node;
CREATE TABLE IF NOT EXISTS `countries` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`phone_code` int(5) NOT NULL,
`country_code` char(2) NOT NULL,
`country_name` varchar(80) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=253 DEFAULT CHARSET=utf8;
INSERT INTO `countries` (`id`, `phone_code`, `country_code`, `country_name`) VALUES
(1, 93, 'AF', 'Afghanistan'),
(2, 358, 'AX', 'Aland Islands'),
(3, 355, 'AL', 'Albania'),
(4, 213, 'DZ', 'Algeria'),
(5, 1684, 'AS', 'American Samoa'),
(6, 376, 'AD', 'Andorra'),
(7, 244, 'AO', 'Angola'),
(8, 1264, 'AI', 'Anguilla'),
(9, 672, 'AQ', 'Antarctica'),
(10, 1268, 'AG', 'Antigua and Barbuda'),
(11, 54, 'AR', 'Argentina'),
(12, 374, 'AM', 'Armenia'),
(13, 297, 'AW', 'Aruba'),
(14, 61, 'AU', 'Australia'),
(15, 43, 'AT', 'Austria'),
(16, 994, 'AZ', 'Azerbaijan'),
(17, 1242, 'BS', 'Bahamas'),
(18, 973, 'BH', 'Bahrain'),
(19, 880, 'BD', 'Bangladesh'),
(20, 1246, 'BB', 'Barbados'),
(21, 375, 'BY', 'Belarus'),
(22, 32, 'BE', 'Belgium'),
(23, 501, 'BZ', 'Belize'),
(24, 229, 'BJ', 'Benin'),
(25, 1441, 'BM', 'Bermuda'),
(26, 975, 'BT', 'Bhutan'),
(27, 591, 'BO', 'Bolivia'),
(28, 599, 'BQ', 'Bonaire, Sint Eustatius and Saba'),
(29, 387, 'BA', 'Bosnia and Herzegovina'),
(30, 267, 'BW', 'Botswana'),
(31, 55, 'BV', 'Bouvet Island'),
(32, 55, 'BR', 'Brazil'),
(33, 246, 'IO', 'British Indian Ocean Territory'),
(34, 673, 'BN', 'Brunei Darussalam'),
(35, 359, 'BG', 'Bulgaria'),
(36, 226, 'BF', 'Burkina Faso'),
(37, 257, 'BI', 'Burundi'),
(38, 855, 'KH', 'Cambodia'),
(39, 237, 'CM', 'Cameroon'),
(40, 1, 'CA', 'Canada'),
(41, 238, 'CV', 'Cape Verde'),
(42, 1345, 'KY', 'Cayman Islands'),
(43, 236, 'CF', 'Central African Republic'),
(44, 235, 'TD', 'Chad'),
(45, 56, 'CL', 'Chile'),
(46, 86, 'CN', 'China'),
(47, 61, 'CX', 'Christmas Island'),
(48, 672, 'CC', 'Cocos (Keeling) Islands'),
(49, 57, 'CO', 'Colombia'),
(50, 269, 'KM', 'Comoros'),
(51, 242, 'CG', 'Congo'),
(52, 242, 'CD', 'Congo, Democratic Republic of the Congo'),
(53, 682, 'CK', 'Cook Islands'),
(54, 506, 'CR', 'Costa Rica'),
(55, 225, 'CI', 'Cote D\'Ivoire'),
(56, 385, 'HR', 'Croatia'),
(57, 53, 'CU', 'Cuba'),
(58, 599, 'CW', 'Curacao'),
(59, 357, 'CY', 'Cyprus'),
(60, 420, 'CZ', 'Czech Republic'),
(61, 45, 'DK', 'Denmark'),
(62, 253, 'DJ', 'Djibouti'),
(63, 1767, 'DM', 'Dominica'),
(64, 1809, 'DO', 'Dominican Republic'),
(65, 593, 'EC', 'Ecuador'),
(66, 20, 'EG', 'Egypt'),
(67, 503, 'SV', 'El Salvador'),
(68, 240, 'GQ', 'Equatorial Guinea'),
(69, 291, 'ER', 'Eritrea'),
(70, 372, 'EE', 'Estonia'),
(71, 251, 'ET', 'Ethiopia'),
(72, 500, 'FK', 'Falkland Islands (Malvinas)'),
(73, 298, 'FO', 'Faroe Islands'),
(74, 679, 'FJ', 'Fiji'),
(75, 358, 'FI', 'Finland'),
(76, 33, 'FR', 'France'),
(77, 594, 'GF', 'French Guiana'),
(78, 689, 'PF', 'French Polynesia'),
(79, 262, 'TF', 'French Southern Territories'),
(80, 241, 'GA', 'Gabon'),
(81, 220, 'GM', 'Gambia'),
(82, 995, 'GE', 'Georgia'),
(83, 49, 'DE', 'Germany'),
(84, 233, 'GH', 'Ghana'),
(85, 350, 'GI', 'Gibraltar'),
(86, 30, 'GR', 'Greece'),
(87, 299, 'GL', 'Greenland'),
(88, 1473, 'GD', 'Grenada'),
(89, 590, 'GP', 'Guadeloupe'),
(90, 1671, 'GU', 'Guam'),
(91, 502, 'GT', 'Guatemala'),
(92, 44, 'GG', 'Guernsey'),
(93, 224, 'GN', 'Guinea'),
(94, 245, 'GW', 'Guinea-Bissau'),
(95, 592, 'GY', 'Guyana'),
(96, 509, 'HT', 'Haiti'),
(97, 0, 'HM', 'Heard Island and Mcdonald Islands'),
(98, 39, 'VA', 'Holy See (Vatican City State)'),
(99, 504, 'HN', 'Honduras'),
(100, 852, 'HK', 'Hong Kong'),
(101, 36, 'HU', 'Hungary'),
(102, 354, 'IS', 'Iceland'),
(103, 91, 'IN', 'India'),
(104, 62, 'ID', 'Indonesia'),
(105, 98, 'IR', 'Iran, Islamic Republic of'),
(106, 964, 'IQ', 'Iraq'),
(107, 353, 'IE', 'Ireland'),
(108, 44, 'IM', 'Isle of Man'),
(109, 972, 'IL', 'Israel'),
(110, 39, 'IT', 'Italy'),
(111, 1876, 'JM', 'Jamaica'),
(112, 81, 'JP', 'Japan'),
(113, 44, 'JE', 'Jersey'),
(114, 962, 'JO', 'Jordan'),
(115, 7, 'KZ', 'Kazakhstan'),
(116, 254, 'KE', 'Kenya'),
(117, 686, 'KI', 'Kiribati'),
(118, 850, 'KP', 'Korea, Democratic People\'s Republic of'),
(119, 82, 'KR', 'Korea, Republic of'),
(120, 381, 'XK', 'Kosovo'),
(121, 965, 'KW', 'Kuwait'),
(122, 996, 'KG', 'Kyrgyzstan'),
(123, 856, 'LA', 'Lao People\'s Democratic Republic'),
(124, 371, 'LV', 'Latvia'),
(125, 961, 'LB', 'Lebanon'),
(126, 266, 'LS', 'Lesotho'),
(127, 231, 'LR', 'Liberia'),
(128, 218, 'LY', 'Libyan Arab Jamahiriya'),
(129, 423, 'LI', 'Liechtenstein'),
(130, 370, 'LT', 'Lithuania'),
(131, 352, 'LU', 'Luxembourg'),
(132, 853, 'MO', 'Macao'),
(133, 389, 'MK', 'Macedonia, the Former Yugoslav Republic of'),
(134, 261, 'MG', 'Madagascar'),
(135, 265, 'MW', 'Malawi'),
(136, 60, 'MY', 'Malaysia'),
(137, 960, 'MV', 'Maldives'),
(138, 223, 'ML', 'Mali'),
(139, 356, 'MT', 'Malta'),
(140, 692, 'MH', 'Marshall Islands'),
(141, 596, 'MQ', 'Martinique'),
(142, 222, 'MR', 'Mauritania'),
(143, 230, 'MU', 'Mauritius'),
(144, 269, 'YT', 'Mayotte'),
(145, 52, 'MX', 'Mexico'),
(146, 691, 'FM', 'Micronesia, Federated States of'),
(147, 373, 'MD', 'Moldova, Republic of'),
(148, 377, 'MC', 'Monaco'),
(149, 976, 'MN', 'Mongolia'),
(150, 382, 'ME', 'Montenegro'),
(151, 1664, 'MS', 'Montserrat'),
(152, 212, 'MA', 'Morocco'),
(153, 258, 'MZ', 'Mozambique'),
(154, 95, 'MM', 'Myanmar'),
(155, 264, 'NA', 'Namibia'),
(156, 674, 'NR', 'Nauru'),
(157, 977, 'NP', 'Nepal'),
(158, 31, 'NL', 'Netherlands'),
(159, 599, 'AN', 'Netherlands Antilles'),
(160, 687, 'NC', 'New Caledonia'),
(161, 64, 'NZ', 'New Zealand'),
(162, 505, 'NI', 'Nicaragua'),
(163, 227, 'NE', 'Niger'),
(164, 234, 'NG', 'Nigeria'),
(165, 683, 'NU', 'Niue'),
(166, 672, 'NF', 'Norfolk Island'),
(167, 1670, 'MP', 'Northern Mariana Islands'),
(168, 47, 'NO', 'Norway'),
(169, 968, 'OM', 'Oman'),
(170, 92, 'PK', 'Pakistan'),
(171, 680, 'PW', 'Palau'),
(172, 970, 'PS', 'Palestinian Territory, Occupied'),
(173, 507, 'PA', 'Panama'),
(174, 675, 'PG', 'Papua New Guinea'),
(175, 595, 'PY', 'Paraguay'),
(176, 51, 'PE', 'Peru'),
(177, 63, 'PH', 'Philippines'),
(178, 64, 'PN', 'Pitcairn'),
(179, 48, 'PL', 'Poland'),
(180, 351, 'PT', 'Portugal'),
(181, 1787, 'PR', 'Puerto Rico'),
(182, 974, 'QA', 'Qatar'),
(183, 262, 'RE', 'Reunion'),
(184, 40, 'RO', 'Romania'),
(185, 70, 'RU', 'Russian Federation'),
(186, 250, 'RW', 'Rwanda'),
(187, 590, 'BL', 'Saint Barthelemy'),
(188, 290, 'SH', 'Saint Helena'),
(189, 1869, 'KN', 'Saint Kitts and Nevis'),
(190, 1758, 'LC', 'Saint Lucia'),
(191, 590, 'MF', 'Saint Martin'),
(192, 508, 'PM', 'Saint Pierre and Miquelon'),
(193, 1784, 'VC', 'Saint Vincent and the Grenadines'),
(194, 684, 'WS', 'Samoa'),
(195, 378, 'SM', 'San Marino'),
(196, 239, 'ST', 'Sao Tome and Principe'),
(197, 966, 'SA', 'Saudi Arabia'),
(198, 221, 'SN', 'Senegal'),
(199, 381, 'RS', 'Serbia'),
(200, 381, 'CS', 'Serbia and Montenegro'),
(201, 248, 'SC', 'Seychelles'),
(202, 232, 'SL', 'Sierra Leone'),
(203, 65, 'SG', 'Singapore'),
(204, 1, 'SX', 'Sint Maarten'),
(205, 421, 'SK', 'Slovakia'),
(206, 386, 'SI', 'Slovenia'),
(207, 677, 'SB', 'Solomon Islands'),
(208, 252, 'SO', 'Somalia'),
(209, 27, 'ZA', 'South Africa'),
(210, 500, 'GS', 'South Georgia and the South Sandwich Islands'),
(211, 211, 'SS', 'South Sudan'),
(212, 34, 'ES', 'Spain'),
(213, 94, 'LK', 'Sri Lanka'),
(214, 249, 'SD', 'Sudan'),
(215, 597, 'SR', 'Suriname'),
(216, 47, 'SJ', 'Svalbard and Jan Mayen'),
(217, 268, 'SZ', 'Swaziland'),
(218, 46, 'SE', 'Sweden'),
(219, 41, 'CH', 'Switzerland'),
(220, 963, 'SY', 'Syrian Arab Republic'),
(221, 886, 'TW', 'Taiwan, Province of China'),
(222, 992, 'TJ', 'Tajikistan'),
(223, 255, 'TZ', 'Tanzania, United Republic of'),
(224, 66, 'TH', 'Thailand'),
(225, 670, 'TL', 'Timor-Leste'),
(226, 228, 'TG', 'Togo'),
(227, 690, 'TK', 'Tokelau'),
(228, 676, 'TO', 'Tonga'),
(229, 1868, 'TT', 'Trinidad and Tobago'),
(230, 216, 'TN', 'Tunisia'),
(231, 90, 'TR', 'Turkey'),
(232, 7370, 'TM', 'Turkmenistan'),
(233, 1649, 'TC', 'Turks and Caicos Islands'),
(234, 688, 'TV', 'Tuvalu'),
(235, 256, 'UG', 'Uganda'),
(236, 380, 'UA', 'Ukraine'),
(237, 971, 'AE', 'United Arab Emirates'),
(238, 44, 'GB', 'United Kingdom'),
(239, 1, 'US', 'United States'),
(240, 1, 'UM', 'United States Minor Outlying Islands'),
(241, 598, 'UY', 'Uruguay'),
(242, 998, 'UZ', 'Uzbekistan'),
(243, 678, 'VU', 'Vanuatu'),
(244, 58, 'VE', 'Venezuela'),
(245, 84, 'VN', 'Viet Nam'),
(246, 1284, 'VG', 'Virgin Islands, British'),
(247, 1340, 'VI', 'Virgin Islands, U.s.'),
(248, 681, 'WF', 'Wallis and Futuna'),
(249, 212, 'EH', 'Western Sahara'),
(250, 967, 'YE', 'Yemen'),
(251, 260, 'ZM', 'Zambia'),
(252, 263, 'ZW', 'Zimbabwe');

Step 3: Install express ejs body-parser mysql Modules

Execute the following command on the terminal to install express ejs body-parser MySQL modules:

npm install express ejs mysql body-parser --save

Step 4: Connect App to MySQL DB

Create database.js file into your app root directory and add the following code into it to connect your app to the mongodb database:

var mysql = require('mysql');
var conn = mysql.createConnection({
host: 'localhost', // Replace with your host name
user: 'root',      // Replace with your database username
password: '',      // Replace with your database password
database: 'my-node' // // Replace with your database Name
}); 
conn.connect(function(err) {
if (err) throw err;
console.log('Database is connected successfully !');
});
module.exports = conn;

Step 5: Create Server.js File And Import Modules

Create server.js file; so visit your app root directory and create server.js file; Then import above-installed modules into it:

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var bodyParser = require('body-parser');
var db = require('./database');
var app = express();

Step 6: Create HTML Markup Form

Create html form for inserting data into database; So visit views directory and create index.ejs file inside it. Then add the following code into it:

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.css" />
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="dsp container">
<div class="row dsp">
<h2>Node js Autocomplete Search with MySQL</h2>
<input type="text" name="search-google" id="search-google" placeholder="find any country..." class="form-control litanswer">
</div>
</div>
<script type="text/javascript">
$(function() {
$("#search-google").autocomplete({
name: 'search-google',
source: 'http://localhost:3000/search?key=%QUERY',
limit: 4
});
});
</script>
</body>
</html>

Step 7: Create Routes

Create routes; so visit app root directory and open server.js file; Then add the following create autocomplete search routes; as shown below:

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var bodyParser = require('body-parser');
var db = require('./database');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, '/'));
app.set('view engine', 'ejs');
app.get('/', function(req, res) {
res.render('index');
});
app.get('/search', function(req, res) {
db.query('SELECT country_name FROM countries WHERE country_name LIKE "%' + req.query.term + '%"',
function(err, rows, fields) {
if (err) throw err;
var data = [];
for (i = 0; i < rows.length; i++) {
data.push(rows[i].country_name);
}
res.end(JSON.stringify(data));
});
});
// port must be set to 8080 because incoming http requests are routed from port 80 to port 8080
app.listen(3000, function() {
console.log('Node app is running on port 3000');
});
module.exports = app;

Step 8: Start App Server

You can use the following command to start node js app server:

//run the below command
npm start
after run this command open your browser and hit 
http://127.0.0.1:3000/

In this tutorial, you have learned how to create autocomplete search in node js express app using MySQL database

#nodejs #node #mysql 

Build an Autocomplete Search Feature in Node.js with MySQL
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