Hw02 express

models/contacts.js

@@ -1,19 +1,72 @@
-// const fs = require('fs/promises')
+const { read } = require("fs");
+const fs = require("fs/promises");
+const path = require("path");
+const { v4: uuidv4 } = require("uuid");
 
-const listContacts = async () => {}
+const contactsPath = path.join(__dirname, "contacts.json");
 
-const getContactById = async (contactId) => {}
+const readContactsFile = async () => {
+  try {
+    const data = await fs.readFile(contactsPath, "utf-8");
+    return JSON.parse(data);
+  } catch (error) {
+    console.error("Error reading contacts file:", error.message);
+    return [];
+  }
+};
 
-const removeContact = async (contactId) => {}
+const writeContactsFile = async (contacts) => {
+  try {
+    await fs.writeFile(contactsPath, JSON.stringify(contacts, null, 2));
+  } catch (error) {
+    console.error("Error writing contacts file:", error.message);
+  }
+};
 
-const addContact = async (body) => {}
+const listContacts = async () => {
+  return await readContactsFile();
+};
 
-const updateContact = async (contactId, body) => {}
+const getContactById = async (contactId) => {
+  const contacts = await readContactsFile();
+  return contacts.find((contact) => contact.id === contactId) || null;
+};
+
+const removeContact = async (contactId) => {
+  const contacts = await readContactsFile();
+  const index = contacts.findIndex((contact) => contact.id === contactId);
+
+  if (index === -1) return null;
+
+  const [removedContact] = contacts.splice(index, 1);
+  await writeContactsFile(contacts);
+  return removedContact;
+};
+
+const addContact = async (body) => {
+  const contacts = await readContactsFile();
+  const newContact = { id: uuidv4(), ...body };
+
+  contacts.push(newContact);
+  await writeContactsFile(contacts);
+  return newContact;
+};
+
+const updateContact = async (contactId, body) => {
+  const contacts = await readContactsFile();
+  const index = contacts.findIndex((contact) => contact.id === contactId);
+
+  if (index === -1) return null;
+
+  contacts[index] = { ...contacts[index], ...body };
+  await writeContactsFile(contacts);
+  return contacts[index];
+};
 
 module.exports = {
   listContacts,
   getContactById,
   removeContact,
   addContact,
   updateContact,
-}
+};

models/contacts.json

@@ -1,9 +1,9 @@
 [
   {
     "id": "AeHIrLTr6JkxGE6SN-0Rw",
-    "name": "Allen Raymond",
-    "email": "[email protected]",
-    "phone": "(992) 914-3792"
+    "name": "Sebastian",
+    "email": "[email protected]",
+    "phone": "123456789"
   },
   {
     "id": "qdggE76Jtbfd9eWJHrssH",
@@ -58,5 +58,11 @@
     "name": "Alec Howard",
     "email": "[email protected]",
     "phone": "(748) 206-2688"
+  },
+  {
+    "id": "c967f137-6519-4c36-a0a2-1110e98fce27",
+    "name": "Aaaaa Test",
+    "email": "[email protected]",
+    "phone": "11111111"
   }
-]
+]

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": "^11.0.2"
   },
   "devDependencies": {
     "eslint": "7.19.0",

routes/api/contacts.js

@@ -1,25 +1,83 @@
-const express = require('express')
+const express = require("express");
+const router = express.Router();
+const contacts = require("../../models/contacts");
+const Joi = require("joi");
 
-const router = express.Router()
+const contactSchema = Joi.object({
+  name: Joi.string().required(),
+  email: Joi.string().email().required(),
+  phone: Joi.string().pattern(/^\d+$/).required(),
+});
 
-router.get('/', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+router.get("/", async (req, res, next) => {
+  try {
+    const allContacts = await contacts.listContacts();
+    res.status(200).json(allContacts);
+  } catch (error) {
+    next(error);
+  }
+});
 
-router.get('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+router.get("/:contactId", async (req, res, next) => {
+  try {
+    const { contactId } = req.params;
+    const contact = await contacts.getContactById(contactId);
+    if (!contact) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json(contact);
+  } catch (error) {
+    next(error);
+  }
+});
 
-router.post('/', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+router.post("/", async (req, res, next) => {
+  try {
+    const { error } = contactSchema.validate(req.body);
+    if (error) {
+      return res
+        .status(400)
+        .json({ message: `Validation error: ${error.details[0].message}` });
+    }
 
-router.delete('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+    const newContact = await contacts.addContact(req.body);
+    res.status(201).json(newContact);
+  } catch (error) {
+    next(error);
+  }
+});
 
-router.put('/:contactId', async (req, res, next) => {
-  res.json({ message: 'template message' })
-})
+router.delete("/:contactId", async (req, res, next) => {
+  try {
+    const { contactId } = req.params;
+    const result = await contacts.removeContact(contactId);
+    if (!result) {
+      return res.status(404).json({ message: "Not found" });
+    }
+    res.status(200).json({ message: "contact deleted" });
+  } catch (error) {
+    next(error);
+  }
+});
 
-module.exports = router
+router.put("/:contactId", async (req, res, next) => {
+  try {
+    const { error } = contactSchema.validate(req.body);
+    if (error) {
+      return res
+        .status(400)
+        .json({ message: `Validation error: ${error.details[0].message}` });
+    }
+
+    const { contactId } = req.params;
+    const updatedContact = await contacts.updateContact(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;