DmitryKorolDevPro · SvetlanaTr · Apr 22, 2021 · Apr 22, 2021
diff --git a/HW9(http)/.gitignore b/HW9(http)/.gitignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/HW9(http)/index.html b/HW9(http)/index.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>HTTP request methods</title>
+    <meta name='viewport' content='width=device-width, initial-scale=1'>
+    <link rel='stylesheet' href='./css/style.css'>
+
+</head>
+
+<body>
+
+    <h1>Your API</h1>
+    <script src='./js/app.js' type='module'></script>
+</body>
+
+</html>
diff --git a/HW9(http)/js/app.js b/HW9(http)/js/app.js
@@ -0,0 +1,11 @@
+const express = require('express');
+
+const app = express();
+const fs = require('fs');
+
+const routes = require('./routes.js')(app, fs);
+const port = 5501;
+
+const server = app.listen(port, () => {
+    console.log(`Example app listening at http://localhost:${port}`);
+});
diff --git a/HW9(http)/js/controller.js b/HW9(http)/js/controller.js
@@ -0,0 +1,21 @@
+const model = require('./model.js');
+class Controller {
+    async getAllInFile() {
+        return await model.getAll();
+    }
+
+    async addInFile({ id, title }) {
+        return await model.addInto(id, title);
+    }
+
+    async updateItemInFile({ id, title }) {
+        return await model.updateItem(id, title);
+    }
+
+    async deleteItemInFile({ id }) {
+        return await model.deleteItem(id);
+    }
+}
+
+const controller = new Controller();
+module.exports = controller;
diff --git a/HW9(http)/js/db.json b/HW9(http)/js/db.json
@@ -0,0 +1,18 @@
+[
+  {
+    "id": "1",
+    "title": "Star Wars"
+  },
+  {
+    "id": "2",
+    "title": "Lord of the Rings"
+  },
+  {
+    "id": "3",
+    "title": "Matrix"
+  },
+  {
+    "id": "4",
+    "title": "Hobbit"
+  }
+]
diff --git a/HW9(http)/js/model.js b/HW9(http)/js/model.js
@@ -0,0 +1,69 @@
+
+const fs = require('fs').promises;
+class Model {
+    async getAll() {
+        const fileContentGet = await fs.readFile('./db.json', 'utf8', (err, data) => {
+            try {
+                fileContentGet = JSON.parse(data).films;
+                return ('Content is: ', fileContentGet.address);
+            } catch (err) {
+                return ('Error parsing JSON string: ', err);
+            }
+        });
+        return fileContentGet;
+    }
+    async addInto(id, title) {
+        const filmsList_add = await this.getAll();
+        const obj = JSON.parse(filmsList_add);
+
+        obj.push({
+            id: id,
+            title: title
+        });
+
+        await this.save(obj);
+
+    }
+
+    async updateItem(id, title) {
+        const filmsList_updata = await this.getAll();
+        const obj = JSON.parse(filmsList_updata);
+        const itemToUpdateIndex = await this.findIndexItemById(id);
+
+        const itemToUpdate = obj[itemToUpdateIndex];
+        itemToUpdate.title = title;
+        obj[itemToUpdateIndex] = itemToUpdate;
+
+        await this.save(obj);
+    }
+
+    async deleteItem(id) {
+        const filmsList_delete = await this.getAll();
+        const obj = JSON.parse(filmsList_delete);
+        const index = await this.findIndexItemById(id);
+
+        obj.splice(index, 1);
+        await this.save(obj);
+    }
+
+    async findIndexItemById(id) {
+        const filmsList = await this.getAll();
+        const obj = JSON.parse(filmsList);
+        const item = obj.find(item => item.id === id);
+        return obj.indexOf(item);
+    }
+
+    async save(obj) {
+        const jsonStringify = JSON.stringify(obj, null, 2);
+        await fs.writeFile('./db.json', jsonStringify, err => {
+            if (err) {
+                return ('Error writing file', err);
+            } else {
+                return ('Successfully wrote file!');
+            }
+        });
+    }
+}
+
+const model = new Model();
+module.exports = model;
diff --git a/HW9(http)/js/routes.js b/HW9(http)/js/routes.js
@@ -0,0 +1,64 @@
+const model = require('./model.js');
+const controller = require('./controller.js');
+
+const appRouter = (app, fs) => {
+    // default route
+    app.get('/', (req, res) => {
+        res.send('welcome to the development api-server');
+    });
+    // // other routes
+    filmRoutes(app, fs);
+};
+
+const filmRoutes = (app, fs) => {
+    // READ 
+    //localhost:5501/films
+    app.get('/films', async (req, res) => {
+
+        const result = await controller.getAllInFile();
+        if (result === 0) {
+            res.status(204).json({ message: `Error 204. No Content` });
+        }
+        else {
+            res.status(200).send(result);
+        }
+    });
+
+    // CREATE
+    //localhost:5501/films?id=5&title=The+Great+Gatsby
+    app.post('/films', async (req, res) => {
+        const result = await controller.addInFile(req.query);
+        if (result === 0) {
+            res.status(204).json({ message: `Error 204. No Content` });
+        }
+        else {
+            res.status(200).send(result);
+        }
+    });
+
+    // UPDATE
+    //localhost:5501/films?id=4&title=Pulp+Fiction
+    app.put('/films', async (req, res) => {
+        console.log('PUT');
+        const result = await controller.updateItemInFile(req.query);
+        if (result === 0) {
+            res.status(204).json({ message: `Error 204. No Content` });
+        }
+        else {
+            res.status(200).send(result);
+        }
+    });
+
+    // DELETE
+    //localhost:5501/films?id=5
+    app.delete('/films', async (req, res) => {
+        const result = await controller.deleteItemInFile(req.query);
+        if (result === 0) {
+            res.status(204).json({ message: `Error 204. No Content` });
+        }
+        else {
+            res.status(200).send(result);
+        }
+    });
+}
+module.exports = appRouter;
diff --git a/HW9(http)/js/view.js b/HW9(http)/js/view.js
@@ -0,0 +1,4 @@
+class View {
+
+
+}