update

.gitignore

@@ -1 +1 @@
-node_modules
+*node_modules

app.js

@@ -1,9 +1,16 @@
 const http = require('http');
+const fs = require('fs');
 
-let message = 'Hello World!';
 http.createServer(function (request, response) {
-    console.log(message);
+    fs.readFile('index.html', 'utf8', function (
-    response.end(message);
+        error,
-}).listen(3000, '127.0.0.1', () => {
+        data
-    console.log('Сервер начал прослушивание запросов');
+    ) {
-});
+        let message = 'Изучаем Node.js';
+        let header = 'Главная страница';
+        data = data
+            .replace('{header}', header)
+            .replace('{message}', message);
+        response.end(data);
+    });
+}).listen(3000);

expressapp/app.js

@@ -0,0 +1,117 @@
+var express = require('express');
+var bodyParser = require('body-parser');
+var fs = require('fs');
+
+var app = express();
+var jsonParser = bodyParser.json();
+
+app.use(express.static(__dirname + '/public'));
+// получение списка данных
+app.get('/api/users', function (req, res) {
+    var content = fs.readFileSync('users.json', 'utf8');
+    var users = JSON.parse(content);
+    res.send(users);
+});
+// получение одного пользователя по id
+app.get('/api/users/:id', function (req, res) {
+    var id = req.params.id; // получаем id
+    var content = fs.readFileSync('users.json', 'utf8');
+    var users = JSON.parse(content);
+    var user = null;
+    // находим в массиве пользователя по id
+    for (var i = 0; i < users.length; i++) {
+        if (users[i].id == id) {
+            user = users[i];
+            break;
+        }
+    }
+    // отправляем пользователя
+    if (user) {
+        res.send(user);
+    } else {
+        res.status(404).send();
+    }
+});
+// получение отправленных данных
+app.post('/api/users', jsonParser, function (req, res) {
+    if (!req.body) return res.sendStatus(400);
+
+    var userName = req.body.name;
+    var userAge = req.body.age;
+    var user = { name: userName, age: userAge };
+
+    var data = fs.readFileSync('users.json', 'utf8');
+    var users = JSON.parse(data);
+
+    // находим максимальный id
+    var id = Math.max.apply(
+        Math,
+        users.map(function (o) {
+            return o.id;
+        })
+    );
+    // увеличиваем его на единицу
+    user.id = id + 1;
+    // добавляем пользователя в массив
+    users.push(user);
+    var data = JSON.stringify(users);
+    // перезаписываем файл с новыми данными
+    fs.writeFileSync('users.json', data);
+    res.send(user);
+});
+// удаление пользователя по id
+app.delete('/api/users/:id', function (req, res) {
+    var id = req.params.id;
+    var data = fs.readFileSync('users.json', 'utf8');
+    var users = JSON.parse(data);
+    var index = -1;
+    // находим индекс пользователя в массиве
+    for (var i = 0; i < users.length; i++) {
+        if (users[i].id == id) {
+            index = i;
+            break;
+        }
+    }
+    if (index > -1) {
+        // удаляем пользователя из массива по индексу
+        var user = users.splice(index, 1)[0];
+        var data = JSON.stringify(users);
+        fs.writeFileSync('users.json', data);
+        // отправляем удаленного пользователя
+        res.send(user);
+    } else {
+        res.status(404).send();
+    }
+});
+// изменение пользователя
+app.put('/api/users', jsonParser, function (req, res) {
+    if (!req.body) return res.sendStatus(400);
+
+    var userId = req.body.id;
+    var userName = req.body.name;
+    var userAge = req.body.age;
+
+    var data = fs.readFileSync('users.json', 'utf8');
+    var users = JSON.parse(data);
+    var user;
+    for (var i = 0; i < users.length; i++) {
+        if (users[i].id == userId) {
+            user = users[i];
+            break;
+        }
+    }
+    // изменяем данные у пользователя
+    if (user) {
+        user.age = userAge;
+        user.name = userName;
+        var data = JSON.stringify(users);
+        fs.writeFileSync('users.json', data);
+        res.send(user);
+    } else {
+        res.status(404).send(user);
+    }
+});
+
+app.listen(3000, function () {
+    console.log('Сервер ожидает подключения...');
+});

expressapp/package-lock.json

@@ -0,0 +1,694 @@
+{
+    "name": "webapp",
+    "version": "1.0.0",
+    "lockfileVersion": 3,
+    "requires": true,
+    "packages": {
+        "": {
+            "name": "webapp",
+            "version": "1.0.0",
+            "dependencies": {
+                "body-parser": "^1.16.0",
+                "express": "^4.14.0"
+            }
+        },
+        "node_modules/accepts": {
+            "version": "1.3.8",
+            "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+            "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+            "dependencies": {
+                "mime-types": "~2.1.34",
+                "negotiator": "0.6.3"
+            },
+            "engines": {
+                "node": ">= 0.6"
+            }
+        },
+        "node_modules/array-flatten": {
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+            "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg=="
+        },
+        "node_modules/body-parser": {
+            "version": "1.20.2",
+            "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
+            "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==",
+            "dependencies": {
+                "bytes": "3.1.2",
+                "content-type": "~1.0.5",
+                "debug": "2.6.9",
+                "depd": "2.0.0",
+                "destroy": "1.2.0",
+                "http-errors": "2.0.0",
+                "iconv-lite": "0.4.24",
+                "on-finished": "2.4.1",
+                "qs": "6.11.0",
+                "raw-body": "2.5.2",
+                "type-is": "~1.6.18",
+                "unpipe": "1.0.0"
+            },
+            "engines": {
+                "node": ">= 0.8",
+                "npm": "1.2.8000 || >= 1.4.16"
+            }
+        },
+        "node_modules/bytes": {
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+            "engines": {
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+            }
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+            "engines": {
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+        "node_modules/vary": {
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+}

expressapp/package.json

@@ -0,0 +1,8 @@
+{
+    "name": "webapp",
+    "version": "1.0.0",
+    "dependencies": {
+        "body-parser": "^1.16.0",
+        "express": "^4.14.0"
+    }
+}

expressapp/public/index.html

@@ -0,0 +1,208 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+        <meta
+            name="viewport"
+            content="width=device-width"
+        />
+        <title>Список пользователей</title>
+        <link
+            href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
+            rel="stylesheet"
+        />
+        <script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
+    </head>
+    <body>
+        <h2>Список пользователей</h2>
+        <form name="userForm">
+            <input type="hidden" name="id" value="0" />
+            <div class="form-group">
+                <label for="name">Имя:</label>
+                <input class="form-control" name="name" />
+            </div>
+            <div class="form-group">
+                <label for="age">Возраст:</label>
+                <input class="form-control" name="age" />
+            </div>
+            <div class="panel-body">
+                <button
+                    type="submit"
+                    class="btn btn-sm btn-primary"
+                >
+                    Сохранить
+                </button>
+                <a id="reset" class="btn btn-sm btn-primary"
+                    >Сбросить</a
+                >
+            </div>
+        </form>
+        <table
+            class="table table-condensed table-striped table-bordered"
+        >
+            <thead>
+                <tr>
+                    <th>Id</th>
+                    <th>Имя</th>
+                    <th>возраст</th>
+                    <th></th>
+                </tr>
+            </thead>
+            <tbody></tbody>
+        </table>
+
+        <script>
+            // Получение всех пользователей
+            function GetUsers() {
+                $.ajax({
+                    url: '/api/users',
+                    type: 'GET',
+                    contentType: 'application/json',
+                    success: function (users) {
+                        var rows = '';
+                        $.each(users, function (
+                            index,
+                            user
+                        ) {
+                            // добавляем полученные элементы в таблицу
+                            rows += row(user);
+                        });
+                        $('table tbody').append(rows);
+                    },
+                });
+            }
+            // Получение одного пользователя
+            function GetUser(id) {
+                $.ajax({
+                    url: '/api/users/' + id,
+                    type: 'GET',
+                    contentType: 'application/json',
+                    success: function (user) {
+                        var form =
+                            document.forms['userForm'];
+                        form.elements['id'].value = user.id;
+                        form.elements['name'].value =
+                            user.name;
+                        form.elements['age'].value =
+                            user.age;
+                    },
+                });
+            }
+            // Добавление пользователя
+            function CreateUser(userName, userAge) {
+                $.ajax({
+                    url: 'api/users',
+                    contentType: 'application/json',
+                    method: 'POST',
+                    data: JSON.stringify({
+                        name: userName,
+                        age: userAge,
+                    }),
+                    success: function (user) {
+                        reset();
+                        $('table tbody').append(row(user));
+                    },
+                });
+            }
+            // Изменение пользователя
+            function EditUser(userId, userName, userAge) {
+                $.ajax({
+                    url: 'api/users',
+                    contentType: 'application/json',
+                    method: 'PUT',
+                    data: JSON.stringify({
+                        id: userId,
+                        name: userName,
+                        age: userAge,
+                    }),
+                    success: function (user) {
+                        reset();
+                        $(
+                            "tr[data-rowid='" +
+                                user.id +
+                                "']"
+                        ).replaceWith(row(user));
+                    },
+                });
+            }
+
+            // сброс формы
+            function reset() {
+                var form = document.forms['userForm'];
+                form.reset();
+                form.elements['id'].value = 0;
+            }
+
+            // Удаление пользователя
+            function DeleteUser(id) {
+                $.ajax({
+                    url: 'api/users/' + id,
+                    contentType: 'application/json',
+                    method: 'DELETE',
+                    success: function (user) {
+                        console.log(user);
+                        $(
+                            "tr[data-rowid='" +
+                                user.id +
+                                "']"
+                        ).remove();
+                    },
+                });
+            }
+            // создание строки для таблицы
+            var row = function (user) {
+                return (
+                    "<tr data-rowid='" +
+                    user.id +
+                    "'><td>" +
+                    user.id +
+                    '</td>' +
+                    '<td>' +
+                    user.name +
+                    '</td> <td>' +
+                    user.age +
+                    '</td>' +
+                    "<td><a class='editLink' data-id='" +
+                    user.id +
+                    "'>Изменить</a> | " +
+                    "<a class='removeLink' data-id='" +
+                    user.id +
+                    "'>Удалить</a></td></tr>"
+                );
+            };
+            // сброс значений формы
+            $('#reset').click(function (e) {
+                e.preventDefault();
+                reset();
+            });
+
+            // отправка формы
+            $('form').submit(function (e) {
+                e.preventDefault();
+                var id = this.elements['id'].value;
+                var name = this.elements['name'].value;
+                var age = this.elements['age'].value;
+                if (id == 0) CreateUser(name, age);
+                else EditUser(id, name, age);
+            });
+
+            // нажимаем на ссылку Изменить
+            $('body').on('click', '.editLink', function () {
+                var id = $(this).data('id');
+                GetUser(id);
+            });
+            // нажимаем на ссылку Удалить
+            $('body').on(
+                'click',
+                '.removeLink',
+                function () {
+                    var id = $(this).data('id');
+                    DeleteUser(id);
+                }
+            );
+
+            // загрузка пользователей
+            GetUsers();
+        </script>
+    </body>
+</html>

expressapp/users.json

@@ -0,0 +1,17 @@
+[
+    {
+        "id": 1,
+        "name": "Tom",
+        "age": 24
+    },
+    {
+        "id": 2,
+        "name": "Bob",
+        "age": 27
+    },
+    {
+        "id": 3,
+        "name": "Alice",
+        "age": "23"
+    }
+]

expressapp/views/contact.ejs

@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title><%=title %></title>
+    <meta charset="utf-8" />
+</head>
+<body>
+    <%- include("partials/menu.ejs") %>
+    <h1><%=title %> в EJS</h1>
+
+    <% if(emailsVisible) {%>
+        <h3>Электронные адреса</h3>
+        <ul>
+            <% for(var i=0; i<emails.length;i++) {%>
+                <li><%=emails[i] %></li>
+            <%} %>
+        </ul>
+    <% }else {%>
+        <h3>Электронный адрес отсутствует</h3>
+    <%} %>
+    <p>Телефон: <%=phone %></p>
+
+    <%- include("partials/footer.ejs") %>
+</body>
+<html>

expressapp/views/contact.hbs

@@ -0,0 +1,3 @@
+<h1>{{title}}</h1>
+<p>Электронный адрес: {{email}}</p>
+<p>Телефон: {{phone}}</p>

expressapp/views/contact.pug

@@ -0,0 +1,17 @@
+extends layout.pug
+
+block title
+    <title>#{title}</title>
+
+block content
+
+    <h1>#{title} в Pug</h1>
+    if emailsVisible
+        <h3>Электронные адреса</h3>
+        <ul>
+            each email in emails
+                <li>#{email}</li>
+        </ul>
+    else
+        <h3>Электронный адрес отсутствует</h3>
+    <p>Телефон: #{phone}</p>

expressapp/views/footer.pug

@@ -0,0 +1 @@
+<footer><p>MyCorp - Copyright © 2017</p></footer>

expressapp/views/home.hbs

@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Главная страница</title>
+    <meta charset="utf-8" />
+</head>
+<body>
+    <h1>Главная страница</h1>
+    <div>{{getTime}}</div>
+    <div>{{createStringList fruit}}</div>
+</body>
+<html>

expressapp/views/layout.pug

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+    block title
+    <meta charset="utf-8" />
+</head>
+<body>
+    block content
+    include footer.pug
+</body>
+<html>

expressapp/views/layouts/layout.hbs

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>{{title}}</title>
+    <meta charset="utf-8" />
+</head>
+<body>
+    {{> menu}}
+
+    {{{body}}}
+
+    {{> footer}}
+</body>
+<html>

expressapp/views/partials/footer.ejs

@@ -0,0 +1 @@
+footer.ejs

expressapp/views/partials/footer.hbs

@@ -0,0 +1 @@
+<footer><p>MyCorp - Copyright © 2017</p></footer>

expressapp/views/partials/menu.ejs

@@ -0,0 +1,4 @@
+<nav>
+    <a href="/">Главная</a> |
+    <a href="/contact">Контакты</a>
+</nav>

expressapp/views/partials/menu.hbs

@@ -0,0 +1,4 @@
+<nav>
+    <a href="/">Главная</a> |
+    <a href="/contact">Контакты</a>
+</nav>

hello.txt

@@ -0,0 +1,2 @@
+Привет мир!Продолжение записи 
+Завершение записи

public/about.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>О сайте</title>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <h1>О сайте</h1>
+    </body>
+    <html></html>
+</html>

public/index.html

@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Главная</title>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <h1>{header}</h1>
+        <p>{message}</p>
+    </body>
+    <html></html>
+</html>

some.txt

@@ -0,0 +1,2 @@
+Привет мир!Продолжение записи 
+Завершение записи