#207-JSON-BBDD

staff/angela-bernaldez/json-bbdd/database/users.json

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+{
+  "users": [
+    {
+      "id": 0,
+      "name": "Limón",
+      "birth_date": "1985-01-04",
+      "phone": "+34 111111111",
+      "email": "[email protected]",
+      "password": "12345678"
+    },
+    {
+      "id": 1,
+      "name": "Borja",
+      "birth_date": "1995-08-30",
+      "phone": "+34 987654321",
+      "email": "[email protected]",
+      "password": "12345678"
+    },
+    {
+      "id": 2,
+      "name": "Pepito",
+      "birth_date": "1995-08-30",
+      "phone": "+34 987654321",
+      "email": "[email protected]",
+      "password": "12345678"
+    },
+    {
+      "id": 3,
+      "name": "Rafa",
+      "birth_date": "1983-02-07",
+      "phone": "+34 123456789",
+      "email": "[email protected]",
+      "password": "12345678"
+    },
+    {
+      "id": 4,
+      "name": "Rafa",
+      "birth_date": "1983-02-07",
+      "phone": "+34 123456789",
+      "email": "[email protected]",
+      "password": "12345678"
+    },
+    {
+      "id": 5,
+      "name": "ventu",
+      "birth_date": "2000-01-02",
+      "phone": "+34 987654321",
+      "email": "[email protected]",
+      "password": "123456789"
+    }
+  ]
+}

staff/angela-bernaldez/json-bbdd/errors/credentials.js

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+function CredentialsError(message) {
+    const instance = new Error(message);
+    Object.setPrototypeOf(instance, Object.getPrototypeOf(this));
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(instance, CredentialsError);
+    }
+    return instance;
+}
+
+CredentialsError.prototype = Object.create(Error.prototype);
+
+CredentialsError.prototype.name = "CredentialsError"
+
+module.exports = CredentialsError

staff/angela-bernaldez/json-bbdd/errors/index.js

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+const CredentialsError = require("./credentials.js")
+const NotFoundError = require("./not-found.js")
+
+module.exports = {
+    NotFoundError,
+    CredentialsError,
+}

staff/angela-bernaldez/json-bbdd/errors/not-found.js

@@ -0,0 +1,14 @@
+function NotFoundError(message) {
+    const instance = new Error(message);
+    Object.setPrototypeOf(instance, Object.getPrototypeOf(this));
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(instance, NotFoundError);
+    }
+    return instance;
+  }
+
+  NotFoundError.prototype = Object.create(Error.prototype);
+
+  NotFoundError.prototype.name = "NotFoundError"
+
+  module.exports = NotFoundError 

staff/angela-bernaldez/json-bbdd/interface/create-user.js

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+const readline = require("readline")
+const { users } = require("../scripts")
+
+const rl = readline.createInterface(
+    process.stdin, process.stdout)
+
+rl.question()
+
+
+

staff/angela-bernaldez/json-bbdd/scripts/index.js

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+const users = require("./users");
+
+module.exports = { users };

staff/angela-bernaldez/json-bbdd/scripts/users/create-one.js

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+const fs = require("fs")
+const path = require("path")
+const read = require("./read-all.js")
+
+function createOne(data) {
+    // destructuring the object data to extract its properties
+    // user don´t pass id property as they do not know that info
+    const { name, birthDate, phone, email, password } = data;
+    read((users) => {
+        // check if there is already an user registered with that email
+        const isEmailDuplicated = users.some((user) => user.email === email);
+        // if there is an user registered with that email, throw an error when that email is trying to be used again
+        if (isEmailDuplicated) throw new Error("User already exists");
+
+        // if there is not an user registered with that email, add that to the database
+        const id = users[users.length - 1].id + 1;
+        users.push({
+          id,
+          name,
+          birth_date: birthDate,
+          phone,
+          email,
+          password,
+        });
+
+        fs.writeFile(
+          path.join(__dirname, "../../database/users.json"),
+          JSON.stringify({ users: users }),
+          "utf-8",
+          (err) => {
+            if (err) throw err 
+          }
+        );
+      });
+}
+
+module.exports = createOne

staff/angela-bernaldez/json-bbdd/scripts/users/delete-one.js

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+const fs = require("fs")
+const path = require("path")
+const read = require("./read-all.js")
+const {NotFoundError, CredentialsError} = require("../../errors")
+
+function deleteOne(id, password) {    
+    read((users) => {
+        const user = users.filter((_user) => _user.id === id)[0]
+
+        if (!user) throw new NotFoundError("User not found")
+
+        if (!(user.password === password)) throw new CredentialsError("Password doesn't match")
+
+        const newUsers = users.filter((_user) => !(_user.id === id));
+
+        fs.writeFile(
+          path.join(__dirname, "../../database/users.json"),
+          JSON.stringify({ users: newUsers }),
+          "utf-8",
+          (err) => {
+            if (err) throw err 
+          }
+        );
+      });
+}
+
+module.exports = deleteOne
+

staff/angela-bernaldez/json-bbdd/scripts/users/index.js

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+const createOne = require("./create-one.js");
+const deleteOne = require("./delete-one.js");
+const readAll = require("./read-all.js");
+const readOne = require("./read-one.js");
+const updateById = require("./update-by-id.js");
+
+module.exports = {
+  createOne,
+  deleteOne,
+  readAll,
+  readOne,
+  updateById,
+};

staff/angela-bernaldez/json-bbdd/scripts/users/read-all.js

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+const fs = require("fs")
+const path = require("path")
+
+function readAll(callback) {
+    fs.readFile(
+        path.join(__dirname, "../../database/users.json"),
+        "utf-8",
+        (err, _data) => {
+            if (err) throw err;
+
+            const data = JSON.parse(_data);
+            callback(data.users);
+        }
+    )
+}
+
+module.exports = readAll

staff/angela-bernaldez/json-bbdd/scripts/users/read-one.js

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+const fs = require("fs")
+const path = require("path")
+const { NotFoundError } = require("../../errors")
+
+function readOne(id, callback) {
+    fs.readFile(
+        path.join(__dirname, "../../database/users.json"),
+        "utf-8",
+        (err, _data) => {
+            if (err) throw err;
+
+            const data = JSON.parse(_data);
+
+            const user = data.users.filter((_user) => _user.id === id)[0]
+
+            if (!user) throw new NotFoundError("User not found")
+
+            callback(user);
+        }
+    )
+}
+
+module.exports = readOne

staff/angela-bernaldez/json-bbdd/scripts/users/update-by-id.js

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+const fs = require("fs")
+const path = require("path")
+const read = require("./read-all.js")
+
+function updateById(id, data) {
+    // destructuring the object data to extract its properties
+    const { name, birthDate, phone} = data;
+
+    read((users) => {
+        users.forEach((user) => {
+          if (user.id === id) {
+            user.name = name ?? user.name;
+            user.birth_date = birthDate ?? user.birth_date;
+            user.phone = phone ?? user.phone;
+          }
+        });
+
+        fs.writeFile(
+          path.join(__dirname, "../../database/users.json"),
+          JSON.stringify({ users: users }),
+          "utf-8",
+          (err) => {
+            if (err) throw err 
+          }
+        );
+      });
+}
+
+module.exports = updateById