Hw02 express

.eslintrc.cjs

@@ -0,0 +1,12 @@
+module.exports = {
+  env: {
+    commonjs: true,
+    es2021: true,
+    node: true,
+  },
+  extends: ['standard', 'prettier'],
+  parserOptions: {
+    ecmaVersion: 12,
+  },
+  rules: {},
+}

.gitignore

@@ -1,2 +1,4 @@
 node_modules/
 .env
+.idea
+.vscode

app.js

@@ -1,25 +1,27 @@
-const express = require('express')
-const logger = require('morgan')
-const cors = require('cors')
+import express from "express";
+import logger from "morgan";
+import cors from "cors";
 
-const contactsRouter = require('./routes/api/contacts')
+import { router as contactsRouter } from "./routes/api/contactsRouter.js";
 
-const app = express()
+const app = express();
 
-const formatsLogger = app.get('env') === 'development' ? 'dev' : 'short'
+const formatsLogger = app.get("env") === "development" ? "dev" : "short";
 
-app.use(logger(formatsLogger))
-app.use(cors())
-app.use(express.json())
+app.use(logger(formatsLogger));
+app.use(cors());
+app.use(express.json());
 
-app.use('/api/contacts', contactsRouter)
+app.use("/api/contacts", contactsRouter);
 
 app.use((req, res) => {
-  res.status(404).json({ message: 'Not found' })
-})
+  res.status(404).json({ message: "Not found" });
+});
 
-app.use((err, req, res, next) => {
-  res.status(500).json({ message: err.message })
-})
+app.use((err, _req, res, _next) => {
+  const { status = 500, message = "Server error" } = err;
+  res.status(status).json({ message });
+});
 
-module.exports = app
+// module.exports = app;
+export { app };

helpers/HttpError.js

@@ -0,0 +1,15 @@
+const messages = {
+  400: "Bad request",
+  401: "Unauthorized",
+  403: "Forbidden",
+  404: "Not found",
+  409: "Conflict",
+};
+
+const httpError = (status, message = messages[status]) => {
+  const error = new Error(message);
+  error.status = status;
+  return error;
+};
+
+export { httpError };

models/contacts.js

@@ -1,19 +1,64 @@
-// const fs = require('fs/promises')
+import fs from "fs/promises";
+import path from "path";
+import { nanoid } from "nanoid";
 
-const listContacts = async () => {}
+const contactsPath = path.join("models", "contacts.json");
 
-const getContactById = async (contactId) => {}
+const listContacts = async () => {
+  const contacts = await fs.readFile(contactsPath);
+  return JSON.parse(contacts);
+};
 
-const removeContact = async (contactId) => {}
+const getContactById = async (contactId) => {
+  const contacts = await listContacts();
+  const result = contacts.find((contact) => contact.id === contactId);
+  return result || null;
+};
 
-const addContact = async (body) => {}
+const removeContact = async (contactId) => {
+  const contacts = await listContacts();
+  const index = contacts.findIndex((item) => item.id === contactId);
 
-const updateContact = async (contactId, body) => {}
+  if (index === -1) {
+    return null;
+  }
 
-module.exports = {
-  listContacts,
-  getContactById,
-  removeContact,
-  addContact,
-  updateContact,
-}
+  const deletedContact = contacts.splice(index, 1);
+  await fs.writeFile(contactsPath, JSON.stringify(contacts, null, 2));
+  return deletedContact;
+};
+
+const addContact = async ({ name, email, phone }) => {
+  const contacts = await listContacts();
+  const newContact = {
+    id: nanoid(),
+    name,
+    email,
+    phone,
+  };
+  const allContacts = [...contacts, newContact];
+  await fs.writeFile(contactsPath, JSON.stringify(allContacts, null, 2));
+  return newContact;
+};
+
+const updateContact = async (id, { name, email, phone }) => {
+  const contacts = await listContacts();
+  const index = contacts.findIndex((item) => item.id === id);
+
+  if (index === -1) {
+    return null;
+  }
+
+  contacts[index] = {
+    id,
+    name,
+    email,
+    phone,
+  };
+
+  await fs.writeFile(contactsPath, JSON.stringify(contacts, null, 2));
+  return contacts[index];
+};
+
+// prettier-ignore
+export { listContacts, getContactById, removeContact, addContact, updateContact };

models/contacts.json

@@ -1,62 +1,68 @@
 [
   {
-    "id": "1",
+    "id": "AeHIrLTr6JkxGE6SN-0Rw",
     "name": "Allen Raymond",
     "email": "nulla.ante@vestibul.co.uk",
     "phone": "(992) 914-3792"
   },
   {
-    "id": "2",
+    "id": "qdggE76Jtbfd9eWJHrssH",
     "name": "Chaim Lewis",
     "email": "dui.in@egetlacus.ca",
     "phone": "(294) 840-6685"
   },
   {
-    "id": "3",
+    "id": "drsAJ4SHPYqZeG-83QTVW",
     "name": "Kennedy Lane",
     "email": "mattis.Cras@nonenimMauris.net",
     "phone": "(542) 451-7038"
   },
   {
-    "id": "4",
+    "id": "vza2RIzNGIwutCVCs4mCL",
     "name": "Wylie Pope",
     "email": "est@utquamvel.net",
     "phone": "(692) 802-2949"
   },
   {
-    "id": "5",
+    "id": "05olLMgyVQdWRwgKfg5J6",
     "name": "Cyrus Jackson",
     "email": "nibh@semsempererat.com",
     "phone": "(501) 472-5218"
   },
   {
-    "id": "6",
+    "id": "1DEXoP8AuCGYc1YgoQ6hw",
     "name": "Abbot Franks",
     "email": "scelerisque@magnis.org",
     "phone": "(186) 568-3720"
   },
   {
-    "id": "7",
+    "id": "Z5sbDlS7pCzNsnAHLtDJd",
     "name": "Reuben Henry",
     "email": "pharetra.ut@dictum.co.uk",
     "phone": "(715) 598-5792"
   },
   {
-    "id": "8",
+    "id": "C9sjBfCo4UJCWjzBnOtxl",
     "name": "Simon Morton",
     "email": "dui.Fusce.diam@Donec.com",
     "phone": "(233) 738-2360"
   },
   {
-    "id": "9",
+    "id": "e6ywwRe4jcqxXfCZOj_1e",
     "name": "Thomas Lucas",
     "email": "nec@Nulla.com",
     "phone": "(704) 398-7993"
   },
   {
-    "id": "10",
+    "id": "rsKkOQUi80UsgVPCcLZZW",
     "name": "Alec Howard",
     "email": "Donec.elementum@scelerisquescelerisquedui.net",
     "phone": "(748) 206-2688"
+  },
+  {
+    "id": "9t_um3FNF8_91GjzK8OJi",
+    "name": "Reuben Henry",
+    "email": "pharetra.ut@dictum.co.uk",
+    "phone": "(715) 598-5792"
   }
-]
+]