Tema hw02: Adăugat REST API pentru colecția de contacte

models/contacts.js

@@ -1,19 +1,53 @@
-// const fs = require('fs/promises')
+const fs = require("fs/promises");
+const path = require("path");
+const { v4: uuidv4 } = require("uuid");
+const contactsPath = path.join(__dirname, "contacts.json");
 
-const listContacts = async () => {}
+const listContacts = async () => {
+  const data = await fs.readFile(contactsPath);
+  return JSON.parse(data);
+};
 
-const getContactById = async (contactId) => {}
+const getContactById = async (contactId) => {
+  const contacts = await listContacts();
+  return contacts.find((contact) => contact.id === contactId);
+};
 
-const removeContact = async (contactId) => {}
+const removeContact = async (contactId) => {
+  const contacts = await listContacts();
+  const updatedContacts = contacts.filter(
+    (contact) => contact.id !== contactId
+  );
+  if (contacts.length === updatedContacts.length) {
+    return null;
+  }
+  await fs.writeFile(contactsPath, JSON.stringify(updatedContacts));
+  return { message: "Contact deleted" };
+};
 
-const addContact = async (body) => {}
+const addContact = async (body) => {
+  const contacts = await listContacts();
+  const newContact = { id: uuidv4(), ...body };
+  contacts.push(newContact);
+  await fs.writeFile(contactsPath, JSON.stringify(contacts));
+  return newContact;
+};
 
-const updateContact = async (contactId, body) => {}
+const updateContact = async (contactId, body) => {
+  const contacts = await listContacts();
+  const index = contacts.findIndex((contact) => contact.id === contactId);
+  if (index === -1) {
+    return null;
+  }
+  contacts[index] = { ...contacts[index], ...body };
+  await fs.writeFile(contactsPath, JSON.stringify(contacts));
+  return contacts[index];
+};
 
 module.exports = {
   listContacts,
   getContactById,
   removeContact,
   addContact,
   updateContact,
-}
+};

models/contacts.json

@@ -1,7 +1,7 @@
 [
   {
     "id": "AeHIrLTr6JkxGE6SN-0Rw",
-    "name": "Allen Raymond",
+    "name": "Andra",
     "email": "nulla.ante@vestibul.co.uk",
     "phone": "(992) 914-3792"
   },

package.json

@@ -12,7 +12,9 @@
     "cors": "2.8.5",
     "cross-env": "7.0.3",
     "express": "4.17.1",
-    "morgan": "1.10.0"
+    "joi": "^17.13.3",
+    "morgan": "1.10.0",
+    "uuid": "^11.0.3"
   },
   "devDependencies": {
     "eslint": "7.19.0",

routes/api/contacts.js

@@ -1,25 +1,87 @@
-const express = require('express')
+const express = require("express");
+const Joi = require("joi");
+const {
+  listContacts,
+  getContactById,
+  removeContact,
+  addContact,
+  updateContact,
+} = require("../../models/contacts");
 
-const router = express.Router()
+// Joi schema for validation
+const contactSchema = Joi.object({
+  name: Joi.string().required(),
+  email: Joi.string().email().required(),
+  phone: Joi.string().required(),
+});
 
-router.get('/', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+const router = express.Router();
 
-router.get('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+// GET /api/contacts
+router.get("/", async (req, res, next) => {
+  try {
+    const contacts = await listContacts();
+    res.status(200).json(contacts);
+  } catch (error) {
+    next(error);
+  }
+});
 
-router.post('/', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+// GET /api/contacts/:contactId
+router.get("/:contactId", async (req, res, next) => {
+  try {
+    const contact = await getContactById(req.params.contactId);
+    if (!contact) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json(contact);
+  } catch (error) {
+    next(error);
+  }
+});
 
-router.delete('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+// POST /api/contacts
+router.post("/", async (req, res, next) => {
+  try {
+    const { error } = contactSchema.validate(req.body);
+    if (error) {
+      return res.status(400).json({ message: "missing required fields" });
+    }
+    const newContact = await addContact(req.body);
+    res.status(201).json(newContact);
+  } catch (error) {
+    next(error);
+  }
+});
 
-router.put('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+// DELETE /api/contacts/:contactId
+router.delete("/:contactId", async (req, res, next) => {
+  try {
+    const result = await removeContact(req.params.contactId);
+    if (!result) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json(result);
+  } catch (error) {
+    next(error);
+  }
+});
 
-module.exports = router
+// PUT /api/contacts/:contactId
+router.put("/:contactId", async (req, res, next) => {
+  try {
+    if (Object.keys(req.body).length === 0) {
+      return res.status(400).json({ message: "missing fields" });
+    }
+
+    const updatedContact = await updateContact(req.params.contactId, req.body);
+    if (!updatedContact) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json(updatedContact);
+  } catch (error) {
+    next(error);
+  }
+});
+
+module.exports = router;