Hw02 express

models/contacts.js

@@ -1,19 +1,59 @@
-// const fs = require('fs/promises')
+const fs = require("fs/promises");
+const path = require("path");
+const nanoid = require("nanoid");
 
-const listContacts = async () => {}
+const contactsPath = path.join(__dirname, "./contacts.json");
 
-const getContactById = async (contactId) => {}
+const readContacts = async () => {
+  const data = await fs.readFile(contactsPath, "utf8");
+  return JSON.parse(data);
+};
 
-const removeContact = async (contactId) => {}
+const writeContacts = async (contacts) => {
+  await fs.writeFile(contactsPath, JSON.stringify(contacts, null, 2));
+};
 
-const addContact = async (body) => {}
+const listContacts = async () => {
+  return await readContacts();
+};
 
-const updateContact = async (contactId, body) => {}
+const getContactById = async (contactId) => {
+  const contacts = await readContacts();
+  return contacts.find((contact) => contact.id === contactId) || null;
+};
+
+const removeContact = async (contactId) => {
+  const contacts = await readContacts();
+  const index = contacts.findIndex((contact) => contact.id === contactId);
+  if (index === -1) return null;
+
+  const [removedContact] = contacts.splice(index, 1);
+  await writeContacts(contacts);
+  return removedContact;
+};
+
+const addContact = async ({ name, email, phone }) => {
+  const contacts = await readContacts();
+  const newContact = { id: nanoid(), name, email, phone };
+  contacts.push(newContact);
+  await writeContacts(contacts);
+  return newContact;
+};
+
+const updateContact = async (contactId, { name, email, phone }) => {
+  const contacts = await readContacts();
+  const index = contacts.findIndex((contact) => contact.id === contactId);
+  if (index === -1) return null;
+
+  contacts[index] = { ...contacts[index], name, email, phone };
+  await writeContacts(contacts);
+  return contacts[index];
+};
 
 module.exports = {
   listContacts,
   getContactById,
   removeContact,
   addContact,
   updateContact,
-}
+};

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",
+    "nanoid": "^5.0.8"
   },
   "devDependencies": {
     "eslint": "7.19.0",

routes/api/contacts.js

@@ -1,25 +1,101 @@
-const express = require('express')
+const express = require("express");
+const joi = require("joi");
 
-const router = express.Router()
+const router = express.Router();
 
-router.get('/', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+const {
+  listContacts,
+  getContactById,
+  removeContact,
+  addContact,
+  updateContact,
+} = require("../../models/contacts");
 
-router.get('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+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' })
-})
+router.get("/:id", async (req, res, next) => {
+  try {
+    const { id } = req.params;
+    const contact = await getContactById(id);
+    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' })
-})
+router.post("/", async (req, res, next) => {
+  try {
+    const { error } = joi
+      .object({
+        name: joi.string().required(),
+        email: joi.string().email().required(),
+        phone: joi
+          .string()
+          .pattern(/^[0-9]+$/)
+          .required(),
+      })
+      .validate(req.body);
 
-router.put('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+    if (error) {
+      return res.status(400).json({ message: error.details[0].message });
+    }
 
-module.exports = router
+    const { name, email, phone } = req.body;
+    const newContact = await addContact({ name, email, phone });
+    res.status(201).json(newContact);
+  } catch (error) {
+    next(error);
+  }
+});
+
+router.delete("/:id", async (req, res, next) => {
+  try {
+    const { id } = req.params;
+    const contact = await removeContact(id);
+    if (!contact) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json({ message: "contact deleted" });
+  } catch (error) {
+    next(error);
+  }
+});
+
+router.put("/:id", async (req, res, next) => {
+  try {
+    const { error } = joi
+      .object({
+        name: joi.string(),
+        email: joi.string().email(),
+        phone: joi.string().pattern(/^[0-9]+$/),
+      })
+      .min(1)
+      .validate(req.body);
+
+    if (error) {
+      return res.status(400).json({ message: error.details[0].message });
+    }
+
+    const { id } = req.params;
+    const { name, email, phone } = req.body;
+    const updatedContact = await updateContact(id, { name, email, phone });
+    if (!updatedContact) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json(updatedContact);
+  } catch (error) {
+    next(error);
+  }
+});
+
+module.exports = router;