रिएक्ट, Node.js, एक्सप्रेस और MySQL CRUD ऐप

export default {
    HOST: "localhost",
    USER: "root",
    PASSWORD: "root",
    DB: "db",
    PORT: 8081,
    dialect: "mysql",
    pool: {
        max: 5,
        min: 0,
        acquire: 30000,
        idle: 10000,
    },
};

import dbConfig from "../config/db.config.js";
import Sequelize from "sequelize";
import Tutorial from "./tutorial.model.js";
 
const sequelize = new Sequelize(dbConfig.DB, dbConfig.USER, dbConfig.PASSWORD, {
    host: dbConfig.HOST,
    dialect: dbConfig.dialect,
    pool: dbConfig.pool,
    port: dbConfig.PORT,
});
 
const db = {};
db.Sequelize = Sequelize;
db.sequelize = sequelize;
db.tutorials = Tutorial(sequelize, Sequelize);
 
export default db;

export default (sequelize, Sequelize) => {
    const Tutorial = sequelize.define("tutorial", {
        title: {
            type: Sequelize.STRING,
        },
        description: {
            type: Sequelize.STRING,
        },
        published: {
            type: Sequelize.BOOLEAN,
        },
    });
    return Tutorial;
};

docker run --rm -p 3306:3306 \
  -e MYSQL_ROOT_PASSWORD=root \
  -e MYSQL_DATABASE=db \
  mysql:8

import db from "../models/index.js";
 
const Op = db.Sequelize.Op;
const Tutorial = db.tutorials;
 
// एक नया ट्यूटोरियल बनाएं और सहेजें
export const create = (req, res) => {
    // अनुरोध को मान्य करें
    if (!req.body.title) {
        res.status(400).send({
            message: "Content can not be empty!",
        });
        return;
    }
 
    // एक ट्यूटोरियल बनाएं
    const tutorial = {
        title: req.body.title,
        description: req.body.description,
        published: req.body.published ? req.body.published : false,
    };
 
    // डेटाबेस में ट्यूटोरियल सहेजें
    Tutorial.create(tutorial)
        .then((data) => {
            res.send(data);
        })
        .catch((err) => {
            res.status(500).send({
                message:
                    err.message || "Some error occurred while creating the Tutorial.",
            });
        });
};
 
// सभी ट्यूटोरियल प्राप्त करें
export const findAll = (req, res) => {
    // क्वेरी पैरामीटर के माध्यम से एक फ़िल्टर शर्त की अनुमति दें
    const title = req.query.title;
    const condition = title ? { title: { [Op.like]: `%${title}%` } } : null;
 
    Tutorial.findAll({ where: condition })
        .then((data) => {
            res.send(data);
        })
        .catch((err) => {
            res.status(500).send({
                message: err.message || "Some error occurred while retrieving tutorials.",
            });
        });
};
 
// ID द्वारा एक ट्यूटोरियल खोजें
export const findOne = (req, res) => {
    const id = req.params.id;
 
    // प्राइमरी की द्वारा ट्यूटोरियल खोजें
    Tutorial.findByPk(id)
        .then((data) => {
            if (data) {
                res.send(data);
            } else {
                res.status(404).send({
                    message: `Cannot find Tutorial with id=${id}.`,
                });
            }
        })
        .catch((err) => {
            res.status(500).send({
                message: "Error retrieving Tutorial with id=" + id,
            });
        });
};
 
// ID द्वारा एक ट्यूटोरियल अपडेट करें
export const update = (req, res) => {
    const id = req.params.id;
 
    // निर्दिष्ट ID के साथ ट्यूटोरियल अपडेट करें
    Tutorial.update(req.body, {
        where: { id: id },
    })
        .then((num) => {
            if (num == 1) {
                res.send({
                    message: "Tutorial was updated successfully.",
                });
            } else {
                res.send({
                    message: `Cannot update Tutorial with id=${id}. Maybe Tutorial was not found or req.body is empty!`,
                });
            }
        })
        .catch((err) => {
            res.status(500).send({
                message: "Error updating Tutorial with id=" + id,
            });
        });
};
 
// ID द्वारा एक ट्यूटोरियल हटाएं
export const deleteOne = (req, res) => {
    const id = req.params.id;
 
    // निर्दिष्ट ID के साथ ट्यूटोरियल हटाएं
    Tutorial.destroy({
        where: { id: id },
    })
        .then((num) => {
            if (num == 1) {
                res.send({
                    message: "Tutorial was deleted successfully!",
                });
            } else {
                res.send({
                    message: `Cannot delete Tutorial with id=${id}. Maybe Tutorial was not found!`,
                });
            }
        })
        .catch((err) => {
            res.status(500).send({
                message: "Could not delete Tutorial with id=" + id,
            });
        });
};
 
// सभी ट्यूटोरियल हटाएं
export const deleteAll = (req, res) => {
    // सभी ट्यूटोरियल हटाएं
    Tutorial.destroy({
        where: {},
        truncate: false,
    })
        .then((nums) => {
            res.send({ message: `${nums} Tutorials were deleted successfully!` });
        })
        .catch((err) => {
            res.status(500).send({
                message:
                    err.message || "Some error occurred while removing all tutorials.",
            });
        });
};
 
// सभी प्रकाशित ट्यूटोरियल खोजें
export const findAllPublished = (req, res) => {
    // published = true के साथ सभी ट्यूटोरियल खोजें
    Tutorial.findAll({ where: { published: true } })
        .then((data) => {
            res.send(data);
        })
        .catch((err) => {
            res.status(500).send({
                message: err.message || "Some error occurred while retrieving tutorials.",
            });
        });
};

import * as tutorials from "../controllers/tutorial.controller.js";
import express from "express";
 
export default (app) => {
    let router = express.Router();
 
    // एक नया ट्यूटोरियल बनाएं
    router.post("/", tutorials.create);
 
    // सभी ट्यूटोरियल प्राप्त करें
    router.get("/", tutorials.findAll);
 
    // id के साथ एक ट्यूटोरियल प्राप्त करें
    router.get("/:id", tutorials.findOne);
 
    // id के साथ एक ट्यूटोरियल अपडेट करें
    router.put("/:id", tutorials.update);
 
    // id के साथ एक ट्यूटोरियल हटाएं
    router.delete("/:id", tutorials.deleteOne);
 
    // सभी ट्यूटोरियल हटाएं
    router.delete("/", tutorials.deleteAll);
 
    // सभी प्रकाशित ट्यूटोरियल खोजें
    router.get("/published", tutorials.findAllPublished);
 
    app.use("/api/tutorials", router);
};

import express from "express";
import cors from "cors";
import db from "./app/models/index.js";
import tutorialRoutes from "./app/routes/tutorial.routes.js";
 
const app = express();
 
const corsOptions = {
    origin: "http://localhost:5173",
};
 
app.use(cors(corsOptions));
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
 
// सरल रूट
app.get("/", (req, res) => {
    res.json({ message: "Welcome to the Tutorial Application." });
});
 
// रूट्स
tutorialRoutes(app);
 
// डेटाबेस सिंक करें
db.sequelize.sync().then(() => {
    console.log("Synced db.");
});
 
const PORT = process.env.PORT || 8080;
app.listen(PORT, () => {
    console.log(`Server is running on port ${PORT}.`);
});

node server.js

npm create vite@latest frontend -- --template react
cd frontend
npm i
npm i react-router-dom axios
npm install -D tailwindcss autoprefixer
npx tailwindcss init -p

/** @type {import('tailwindcss').Config} */
export default {
    content: ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
    theme: {
        extend: {},
    },
    plugins: [],
};

@tailwind base;
@tailwind components;
@tailwind utilities;

import { Routes, Route, Link, BrowserRouter } from "react-router-dom";
import TutorialsList from "./pages/TutorialsList";
import AddTutorial from "./pages/AddTutorial";
import Tutorial from "./pages/Tutorial";
 
function App() {
    return (
        <BrowserRouter>
            <div>
                {/* नेवबार */}
                <nav className="bg-blue-600 p-4 text-white">
                    <div className="container mx-auto flex justify-between items-center">
                        <a href="/tutorials" className="text-lg font-bold">
                            Corbado
                        </a>
                        <div className="flex space-x-4">
                            <Link to="/tutorials" className="hover:text-gray-300">
                                Tutorials
                            </Link>
                            <Link to="/add" className="hover:text-gray-300">
                                Add
                            </Link>
                        </div>
                    </div>
                </nav>
 
                {/* रूट्स */}
                <div className="container mx-auto mt-8 px-4">
                    <Routes>
                        <Route path="/" element={<TutorialsList />} />
                        <Route path="/tutorials" element={<TutorialsList />} />
                        <Route path="/add" element={<AddTutorial />} />
                        <Route path="/tutorials/:id" element={<Tutorial />} />
                    </Routes>
                </div>
            </div>
        </BrowserRouter>
    );
}
 
export default App;

import axios from "axios";
 
const http = axios.create({
    baseURL: "http://localhost:8080/api",
    headers: {
        "Content-Type": "application/json",
    },
});
 
const getAll = () => {
    return http.get("/tutorials");
};
 
const get = (id) => {
    return http.get(`/tutorials/${id}`);
};
 
const create = (data) => {
    return http.post("/tutorials", data);
};
 
const update = (id, data) => {
    return http.put(`/tutorials/${id}`, data);
};
 
const remove = (id) => {
    return http.delete(`/tutorials/${id}`);
};
 
const removeAll = () => {
    return http.delete("/tutorials");
};
 
const findByTitle = (title) => {
    return http.get(`/tutorials?title=${title}`);
};
 
export default {
    getAll,
    get,
    create,
    update,
    remove,
    removeAll,
    findByTitle,
};

import React, { useState } from "react";
import TutorialService from "../services/tutorial.service";
 
function AddTutorial() {
    const [title, setTitle] = useState("");
    const [description, setDescription] = useState("");
    const [submitted, setSubmitted] = useState(false);
 
    const saveTutorial = () => {
        const data = { title, description };
        TutorialService.create(data)
            .then((response) => {
                console.log(response.data);
                setSubmitted(true);
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    const newTutorial = () => {
        setTitle("");
        setDescription("");
        setSubmitted(false);
    };
 
    return (
        <div className="max-w-sm mx-auto p-4 bg-white rounded shadow">
            {submitted ? (
                <div>
                    <h4 className="font-bold text-green-600 mb-4">
                        Tutorial submitted successfully!
                    </h4>
                    <button
                        className="bg-blue-500 text-white px-3 py-1 rounded"
                        onClick={newTutorial}
                    >
                        Add Another
                    </button>
                </div>
            ) : (
                <div>
                    <h4 className="font-bold text-xl mb-2">Add Tutorial</h4>
 
                    <div className="mb-2">
                        <label className="block mb-1 font-medium">Title</label>
                        <input
                            type="text"
                            className="border border-gray-300 rounded w-full px-2 py-1"
                            value={title}
                            onChange={(e) => setTitle(e.target.value)}
                        />
                    </div>
 
                    <div className="mb-2">
                        <label className="block mb-1 font-medium">Description</label>
                        <input
                            type="text"
                            className="border border-gray-300 rounded w-full px-2 py-1"
                            value={description}
                            onChange={(e) => setDescription(e.target.value)}
                        />
                    </div>
 
                    <button
                        className="bg-green-500 text-white px-3 py-1 rounded mt-2"
                        onClick={saveTutorial}
                    >
                        Submit
                    </button>
                </div>
            )}
        </div>
    );
}
 
export default AddTutorial;

import { useState, useEffect } from "react";
import TutorialService from "../services/tutorial.service";
import { Link } from "react-router-dom";
 
function TutorialsList() {
    const [tutorials, setTutorials] = useState([]);
    const [currentTutorial, setCurrentTutorial] = useState(null);
    const [currentIndex, setCurrentIndex] = useState(-1);
    const [searchTitle, setSearchTitle] = useState("");
 
    useEffect(() => {
        retrieveTutorials();
    }, []);
 
    const onChangeSearchTitle = (e) => {
        setSearchTitle(e.target.value);
    };
 
    const retrieveTutorials = () => {
        TutorialService.getAll()
            .then((response) => {
                setTutorials(response.data);
                console.log(response.data);
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    const refreshList = () => {
        retrieveTutorials();
        setCurrentTutorial(null);
        setCurrentIndex(-1);
    };
 
    const setActiveTutorial = (tutorial, index) => {
        setCurrentTutorial(tutorial);
        setCurrentIndex(index);
    };
 
    const removeAllTutorials = () => {
        TutorialService.removeAll()
            .then((response) => {
                console.log(response.data);
                refreshList();
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    const findByTitle = () => {
        TutorialService.findByTitle(searchTitle)
            .then((response) => {
                setTutorials(response.data);
                setCurrentTutorial(null);
                setCurrentIndex(-1);
                console.log(response.data);
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    return (
        <div className="flex flex-col lg:flex-row gap-8">
            {/* बायां कॉलम: खोज + सूची */}
            <div className="flex-1">
                <div className="flex mb-4">
                    <input
                        type="text"
                        className="border border-gray-300 rounded-l px-2 py-1 w-full"
                        placeholder="Search by title"
                        value={searchTitle}
                        onChange={onChangeSearchTitle}
                    />
                    <button
                        className="bg-blue-500 text-white px-4 py-1 rounded-r"
                        onClick={findByTitle}
                    >
                        Search
                    </button>
                </div>
 
                <h4 className="font-bold text-lg mb-2">Tutorials List</h4>
                <ul className="divide-y divide-gray-200 border border-gray-200 rounded">
                    {tutorials &&
                        tutorials.map((tutorial, index) => (
                            <li
                                className={
                                    "px-4 py-2 cursor-pointer " +
                                    (index === currentIndex ? "bg-blue-100" : "")
                                }
                                onClick={() => setActiveTutorial(tutorial, index)}
                                key={index}
                            >
                                {tutorial.title}
                            </li>
                        ))}
                </ul>
 
                <button
                    className="bg-red-500 text-white px-3 py-1 rounded mt-4"
                    onClick={removeAllTutorials}
                >
                    Remove All
                </button>
            </div>
 
            {/* दायां कॉलम: विवरण */}
            <div className="flex-1">
                {currentTutorial ? (
                    <div className="p-4 bg-white rounded shadow">
                        <h4 className="font-bold text-xl mb-2">Tutorial</h4>
                        <div className="mb-2">
                            <strong>Title: </strong>
                            {currentTutorial.title}
                        </div>
                        <div className="mb-2">
                            <strong>Description: </strong>
                            {currentTutorial.description}
                        </div>
                        <div className="mb-2">
                            <strong>Status: </strong>
                            {currentTutorial.published ? "Published" : "Pending"}
                        </div>
 
                        <Link
                            to={`/tutorials/${currentTutorial.id}`}
                            className="inline-block bg-yellow-400 text-black px-3 py-1 rounded"
                        >
                            Edit
                        </Link>
                    </div>
                ) : (
                    <div>
                        <p>Please click on a Tutorial...</p>
                    </div>
                )}
            </div>
        </div>
    );
}
 
export default TutorialsList;

import { useState, useEffect } from "react";
import { useParams, useNavigate } from "react-router-dom";
import TutorialService from "../services/tutorial.service";
 
function Tutorial() {
    const { id } = useParams();
    const navigate = useNavigate();
 
    const [currentTutorial, setCurrentTutorial] = useState({
        id: null,
        title: "",
        description: "",
        published: false,
    });
    const [message, setMessage] = useState("");
 
    const getTutorial = (id) => {
        TutorialService.get(id)
            .then((response) => {
                setCurrentTutorial(response.data);
                console.log(response.data);
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    useEffect(() => {
        if (id) getTutorial(id);
    }, [id]);
 
    const handleInputChange = (event) => {
        const { name, value } = event.target;
        setCurrentTutorial({ ...currentTutorial, [name]: value });
    };
 
    const updatePublished = (status) => {
        const data = {
            ...currentTutorial,
            published: status,
        };
 
        TutorialService.update(currentTutorial.id, data)
            .then((response) => {
                setCurrentTutorial({ ...currentTutorial, published: status });
                console.log(response.data);
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    const updateTutorial = () => {
        TutorialService.update(currentTutorial.id, currentTutorial)
            .then((response) => {
                console.log(response.data);
                setMessage("The tutorial was updated successfully!");
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    const deleteTutorial = () => {
        TutorialService.remove(currentTutorial.id)
            .then((response) => {
                console.log(response.data);
                navigate("/tutorials");
            })
            .catch((e) => {
                console.log(e);
            });
    };
 
    return (
        <div>
            {currentTutorial ? (
                <div className="max-w-sm mx-auto p-4 bg-white rounded shadow">
                    <h4 className="font-bold text-xl mb-2">Edit Tutorial</h4>
                    <div className="mb-2">
                        <label className="block font-medium" htmlFor="title">
                            Title
                        </label>
                        <input
                            type="text"
                            className="border border-gray-300 rounded w-full px-2 py-1"
                            id="title"
                            name="title"
                            value={currentTutorial.title}
                            onChange={handleInputChange}
                        />
                    </div>
 
                    <div className="mb-2">
                        <label className="block font-medium" htmlFor="description">
                            Description
                        </label>
                        <input
                            type="text"
                            className="border border-gray-300 rounded w-full px-2 py-1"
                            id="description"
                            name="description"
                            value={currentTutorial.description}
                            onChange={handleInputChange}
                        />
                    </div>
 
                    <div className="mb-2">
                        <strong>Status:</strong>{" "}
                        {currentTutorial.published ? "Published" : "Pending"}
                    </div>
 
                    <div className="space-x-2 mt-2">
                        {currentTutorial.published ? (
                            <button
                                className="bg-blue-500 text-white px-3 py-1 rounded"
                                onClick={() => updatePublished(false)}
                            >
                                Unpublish
                            </button>
                        ) : (
                            <button
                                className="bg-blue-500 text-white px-3 py-1 rounded"
                                onClick={() => updatePublished(true)}
                            >
                                Publish
                            </button>
                        )}
 
                        <button
                            className="bg-red-500 text-white px-3 py-1 rounded"
                            onClick={deleteTutorial}
                        >
                            Delete
                        </button>
 
                        <button
                            className="bg-green-500 text-white px-3 py-1 rounded"
                            onClick={updateTutorial}
                        >
                            Update
                        </button>
                    </div>
 
                    {message && <p className="text-green-600 mt-2">{message}</p>}
                </div>
            ) : (
                <div>
                    <p>Loading tutorial...</p>
                </div>
            )}
        </div>
    );
}
 
export default Tutorial;

npm run dev