add api base code with authenticate, register and get user name logic…

…; add storage for users and posts in json; add create post logic b00tc4mp#184

staff/luis-morlets/unsocial/api/data/index.js

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+import uuid from './uuid.js'
+import storage from './storage.js'
+
+export {
+    storage,
+
+    uuid
+}

staff/luis-morlets/unsocial/api/data/posts.json

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+[{"id":"m2wecjrb0ar","image":"https://pixabay.com/get/g0259c3660213baf3e4aa36f843176f3d021f71f70db7da315dda8809d7fe49fd0f394a4d00203563adb597194a0868c2_1280.jpg","text":"cuando estudiaba","author":"m2wd7pkr7xq","date":"2024-10-30T21:36:32.519Z","likedBy":[],"comments":[]}]

staff/luis-morlets/unsocial/api/data/storage.js

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+import fs from 'fs'
+
+export default {
+    get users() {
+        const json = fs.readFileSync('./data/users.json', 'utf-8')
+
+        const users = JSON.parse(json)
+
+        return users
+    },
+
+    set users(users) {
+        const json = JSON.stringify(users)
+
+        fs.writeFileSync('./data/users.json', json)
+    },
+
+    get posts() {
+        const json = fs.readFileSync('./data/posts.json', 'utf-8')
+
+        const posts = JSON.parse(json)
+
+        return posts
+    },
+
+    set posts(posts) {
+        const json = JSON.stringify(posts)
+
+        fs.writeFileSync('./data/posts.json', json)
+    }
+}

staff/luis-morlets/unsocial/api/data/storage.test.js

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+import uuid from './uuid.js'
+
+import storage from './storage.js'
+
+storage.users = [
+    { id: uuid(), name: 'Pepito Grillo', email: '[email protected]', username: 'pepitogrillo', password: '123123123' }
+]
+
+storage.posts = []
+
+console.log(storage.users)

staff/luis-morlets/unsocial/api/data/users.json

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+[
+    {
+        "id": "m2wd1d38rhe",
+        "name": "Pepito Grillo",
+        "email": "[email protected]",
+        "username": "pepitogrillo",
+        "password": "123123123"
+    },
+    {
+        "id": "m2wd7pkr7xq",
+        "name": "Pin Ocho",
+        "email": "[email protected]",
+        "username": "pinocho",
+        "password": "123123123"
+    }
+]

staff/luis-morlets/unsocial/api/data/uuid.js

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+const uuid = () => (Date.now() + Math.random()).toString(36).replace('.', '')
+
+export default uuid

staff/luis-morlets/unsocial/api/index.js

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+import express, { json } from 'express'
+import logic from './logic/index.js'
+
+const server = express()
+
+const jsonBodyParser = express.json()
+
+server.use(express.static('public'))
+
+server.post('/authenticate', jsonBodyParser, (req, res) => {
+    const { username, password } = req.body
+
+    try {
+        const userId = logic.authenticateUser(username, password)
+
+        res.json(userId)
+    } catch (error) {
+        res.status(401).json({ error: error.constructor.name, message: error.message })
+
+        console.error(error)
+    }
+})
+
+server.post('/register', jsonBodyParser, (req, res) => {
+    const { name, email, username, password, 'password-repeat': passwordRepeat } = req.body
+
+    try {
+        logic.registerUser(name, email, username, password, passwordRepeat)
+
+        res.status(201).send()
+    } catch (error) {
+        res.status(400).json({ error: error.constructor.name, message: error.message })
+
+        console.error(error)
+    }
+})
+
+server.get('/users/:userId/name', (req, res) => {
+    const { userId } = req.params
+
+    try {
+        const name = logic.getUserName(userId)
+
+        res.json(name)
+    } catch (error) {
+        res.status(400).json({ error: error.constructor.name, message: error.message })
+
+        console.error(error)
+    }
+})
+
+server.post('/posts', jsonBodyParser, (req, res) => {
+    const userId = req.headers.authorization.slice(6)
+
+    const { image, text } = req.body
+
+    try {
+        logic.createPost(userId, image, text)
+
+        res.status(201).send()
+    } catch (error) {
+        res.status(400).json({ error: error.constructor.name, message: error.message })
+
+        console.error(error)
+    }
+})
+
+server.listen(8080, () => console.log('api is up'))

staff/luis-morlets/unsocial/api/logic/authenticateUser.js

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+import { storage } from '../data/index.js'
+import validate from './helpers/validate.js'
+
+export default (username, password) => {
+    validate.username(username)
+    validate.password(password)
+
+    const { users } = storage
+
+    const user = users.find(user => user.username === username && user.password === password)
+
+    if (user === undefined)
+        throw new Error('Wrong credentials, try again')
+
+    return user.id
+}

staff/luis-morlets/unsocial/api/logic/authenticateUser.test.js

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+import authenticateUser from './authenticateUser.js'
+
+try {
+    console.log(authenticateUser('pinocho', '123123123'))
+} catch (error) {
+    console.error(error)
+}

staff/luis-morlets/unsocial/api/logic/createPost.js

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+import { uuid, storage } from '../data/index.js'
+import { validate } from './helpers/index.js'
+
+export default (userId, image, text) => {
+    validate.id(userId, 'userId')
+    validate.image(image)
+    validate.text(text)
+
+    const { users, posts } = storage
+
+    const found = users.some(({ id }) => id === userId)
+
+    if (!found) throw new Error('user not found')
+
+    const post = {
+        id: uuid(),
+        image: image,
+        text: text,
+        author: userId,
+        date: new Date,
+        likedBy: [],
+        comments: []
+    }
+    posts.push(post)
+
+    storage.posts = posts
+}

staff/luis-morlets/unsocial/api/logic/createPost.test.js

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+import createPost from './createPost.js'
+
+try {
+    createPost('m2wd7pkr7xq', 'https://pixabay.com/get/g0259c3660213baf3e4aa36f843176f3d021f71f70db7da315dda8809d7fe49fd0f394a4d00203563adb597194a0868c2_1280.jpg', 'cuando estudiaba')
+
+} catch (error) {
+    console.error(error)
+}

staff/luis-morlets/unsocial/api/logic/getUserName.js

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+import { storage } from '../data/index.js'
+import validate from './helpers/validate.js'
+
+export default userId => {
+    validate.id(userId, 'userId')
+
+    const { users } = storage
+
+    const user = users.find(user => user.id === userId)
+
+    if (!user) throw new Error('user not found')
+
+    return user.name
+}

staff/luis-morlets/unsocial/api/logic/getUserName.test.js

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+import getUserName from './getUserName.js'
+
+try {
+    console.log(getUserName('m2wd7pkr7xq'))
+} catch (error) {
+    console.error(error)
+}

staff/luis-morlets/unsocial/api/logic/helpers/index.js

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+import validate from './validate.js'
+
+export {
+    validate
+}

staff/luis-morlets/unsocial/api/logic/helpers/validate.js

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+const validateName = name => {
+    if (typeof name !== 'string') throw new Error('invalid text name')
+    if (name.length < 2)
+        throw new Error('invalid name lenght')
+}
+
+const validateEmail = email => {
+    if (typeof email !== 'string') throw new Error('invalid email')
+    if (!/^(([^<>()[\]\.,;:\s@\"]+(\.[^<>()[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i.test(email))
+        throw new Error('invalid e-mail')
+}
+
+const validateUsername = username => {
+    if (typeof username !== 'string') throw new Error('invalid username')
+    if (username.length < 4 || username.length > 14)
+        throw new Error('invalid username lenght')
+}
+
+const validatePassword = password => {
+    if (typeof password !== 'string') throw new Error('invalid password')
+    if (password.length < 8)
+        throw new Error('invalid password lenght')
+}
+
+const validatePasswordsMatch = (password, passwordRepeat) => {
+    if (typeof passwordRepeat !== 'string') throw new Error('invalid password repeat')
+    if (password !== passwordRepeat)
+        throw new Error('passwords do not match')
+}
+
+const validateImage = image => {
+    if (typeof image !== 'string') throw new Error('invalid image')
+}
+
+const validateText = text => {
+    if (typeof text !== 'string') throw new Error('invalid text')
+}
+
+const validateId = (id, explain = 'id') => {
+    if (typeof id !== 'string') throw new Error(`invalid ${explain}`)
+}
+
+const validate = {
+    name: validateName,
+    email: validateEmail,
+    username: validateUsername,
+    password: validatePassword,
+    passwordMatch: validatePasswordsMatch,
+    image: validateImage,
+    text: validateText,
+    id: validateId
+}
+
+export default validate

staff/luis-morlets/unsocial/api/logic/index.js

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+import createPost from './createPost.js'
+//import deletePost from './deletePost'
+//import getPosts from './getPosts'
+//import likesInteraction from './likesInteraction'
+
+import getUserName from './getUserName.js'
+//import isUserLoggedIn from './isUserLoggedIn'
+import authenticateUser from './authenticateUser.js'
+//import logoutUser from './logoutUser'
+import registerUser from './registerUser.js'
+//import getUserId from './getUserId'
+
+
+// import createComment from './createComment'
+// import getComments from './getComments'
+// import removeComment from './removeComment'
+
+const logic = {
+    registerUser,
+    authenticateUser,
+    // isUserLoggedIn,
+    // logoutUser,
+    getUserName,
+    //getUserId,
+
+    // getComments,
+    // createComment,
+    // removeComment,
+
+    createPost,
+    // getPosts,
+    // deletePost,
+    // likesInteraction,
+}
+
+export default logic

staff/luis-morlets/unsocial/api/logic/registerUser.js

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+import validate from './helpers/validate.js'
+import { uuid, storage } from '../data/index.js'
+
+export default (name, email, username, password, passwordRepeat) => {
+
+    validate.name(name)
+    validate.email(email)
+    validate.username(username)
+    validate.password(password)
+    validate.passwordMatch(password, passwordRepeat)
+
+    const { users } = storage
+
+    let user = users.find(user => user.username === username || user.email === email)
+
+    if (user !== undefined)
+        throw new Error('user already exists')
+
+    user = { id: uuid(), name: name, email: email, username: username, password: password }
+
+    users.push(user)
+
+    storage.users = users
+}

staff/luis-morlets/unsocial/api/logic/registerUser.test.js

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+import registerUser from './registerUser.js'
+
+try {
+    registerUser('Pin Ocho', '[email protected]', 'pinocho', '123123123', '123123123')
+} catch (error) {
+    console.error(error)
+}