Next.js 14 Python Flask CRUD Mysql (Create Read Update and Delete)| TailwindCSS DaisyUI

Next.js 14 Python Flask CRUD Mysql (Create Read Update and Delete)| TailwindCSS DaisyUI

https://python-guide-es.readthedocs.io/es/guide-es/dev/virtualenvs.html

Create an environment
ednalan@Cairocoders myapp % pip install virtualenv
ednalan@Cairocoders myapp % pip install virtualenv

Activate the environment
ednalan@Cairocoders myapp % source venv/bin/activate
(venv) ednalan@Cairocoders myapp %

Install Flask
https://pypi.org/project/Flask/
(venv) ednalan@Cairocoders myapp % pip install -U Flask
(venv) ednalan@Cairocoders myapp % flask run

Install requirements
pip install -U flask-cors
https://pypi.org/project/Flask-Cors/

Flask-SQLAlchemy
Flask-SQLAlchemy is an extension for Flask that adds support for SQLAlchemy to your application.
https://flask-sqlalchemy.palletsprojects.com/en/3.0.x/

(venv) PS C:\flask_dev\myapp>pip install -U Flask-SQLAlchemy

Flask + marshmallow for beautiful APIs
https://pypi.org/project/flask-marshmallow/

(venv) PS C:\flask_dev\myapp>pip install flask-marshmallow

python3 -m pip install
https://pypi.org/project/pymysql/
app.py

 
//app.py
from flask import Flask, jsonify, request
from flask_marshmallow import Marshmallow #ModuleNotFoundError: No module named 'flask_marshmallow' = pip install flask-marshmallow https://pypi.org/project/flask-
from flask_cors import CORS, cross_origin #ModuleNotFoundError: No module named 'flask_cors' = pip install Flask-Cors
from models import db, Users
 
app = Flask(__name__)
 
app.config['SECRET_KEY'] = 'cairocoders-ednalan'
#app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///flaskdb.db'
# Databse configuration mysql                             Username:password@hostname/databasename
app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql+pymysql://root:root@localhost:8889/flasknextjs' #python3 -m pip install PyMySQL https://pypi.org/project/pymysql/
                                                        
SQLALCHEMY_TRACK_MODIFICATIONS = False
SQLALCHEMY_ECHO = True
  
CORS(app, supports_credentials=True)
 
db.init_app(app)
        
with app.app_context():
    db.create_all()
 
ma=Marshmallow(app)
 
class UserSchema(ma.Schema):
    class Meta:
        fields = ('id','name','email','password')
  
user_schema = UserSchema()
users_schema = UserSchema(many=True)
  
@app.route("/")
def hello_world():
    return "<p>Hello, World!=</p>"
 
@app.route('/users', methods=['GET']) 
def listusers():
    all_users = Users.query.all()
    results = users_schema.dump(all_users)
    return jsonify(results)
  
@app.route('/userdetails/<id>',methods =['GET'])
def userdetails(id):
    user = Users.query.get(id)
    return user_schema.jsonify(user)
  
@app.route('/userupdate/<id>',methods = ['PUT'])
def userupdate(id):
    user = Users.query.get(id)
  
    name = request.json['name']
    email = request.json['email']
  
    user.name = name
    user.email = email
  
    db.session.commit()
    return user_schema.jsonify(user)
 
@app.route('/userdelete/<id>',methods=['DELETE'])
def userdelete(id):
    user = Users.query.get(id)
    db.session.delete(user)
    db.session.commit()
    return user_schema.jsonify(user)
  
@app.route('/newuser',methods=['POST'])
def newuser():
    name = request.json['name']
    email = request.json['email']
    password = request.json['password']
  
    print(name)
    print(email)
    print(password)
 
    users = Users(name=name, email=email, password=password)
 
    db.session.add(users)
    db.session.commit()
    return user_schema.jsonify(users)
 
if __name__ == "__main__":
    app.run(debug=True)

models.py

 
//models.py
from flask_sqlalchemy import SQLAlchemy #pip install -U Flask-SQLAlchemy
         
db = SQLAlchemy()
         
class Users(db.Model):
    __tablename__ = "tblusers"
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(150), index=True)
    email = db.Column(db.String(150), index=True, unique=True)
    password = db.Column(db.String(255), index=True)

run (venv) C:\flask_dev\myapp>flask run

Next.js Install requirements
npm install axios
https://www.npmjs.com/package/axios

app\page.tsx

//app\page.tsx
import Link from "next/link";
import TableData from "@/components/tabledata";
import { Suspense } from "react";
import { Spinner } from "@/components/spinner";
 
export default function Home() {
    return (
    <div className="w-screen py-20 flex justify-center flex-col items-center">
      <div className="flex items-center justify-between gap-1 mb-5">
        <h1 className="text-4xl font-bold">Next.js 14 Python Flask CRUD Mysql (Create Read Update and Delete)| TailwindCSS DaisyUI</h1>
      </div>    
        <div className="overflow-x-auto">
          <div className="mb-2 w-full text-right">
            <Link
              href="/user/create"
              className="btn btn-primary">
              Create
            </Link>
          </div>
          <Suspense fallback={<Spinner />}>
            <TableData/>
          </Suspense>
      </div>  
    </div>
  ); 
}

components\tabledata.tsx

//components\tabledata.tsx
"use client";
  
import React, { useEffect, useState } from "react";
import axios from 'axios' //npm install axios https://www.npmjs.com/package/axios
import Link from "next/link";

export default function Users() {
    const [userData, setUSerData] = useState([]);
    useEffect(() => {
        fetchData();
    }, [])
 
    const fetchData = async () => {
        try {
            const result = await axios("http://127.0.0.1:5000/users");
            console.log(result.data);
            setUSerData(result.data)
        } catch (err) {
            console.log("somthing Wrong");
        }
    }

    const handleDelete=async(id)=>{
        console.log(id);
        await axios.delete("http://127.0.0.1:5000/userdelete/"+id);
        const newUserData=userData.filter((item)=>{
            return(
                item.id !==id
            )
        })
        setUSerData(newUserData);
    }
  return (
        <table className="table table-zebra">
        <thead className="text-sm text-gray-700 uppercase bg-gray-50">
            <tr>
            <th className="py-3 px-6">#</th>
            <th className="py-3 px-6">Name</th>
            <th className="py-3 px-6">Email</th>
            <th className="py-3 px-6">Password</th>
            <th className="py-3 px-6 text-center">Actions</th>
            </tr>
        </thead>
        <tbody>
            {userData.map((rs, index) => (
            <tr key={rs.id} className="bg-white border-b">
                <td className="py-3 px-6">{index + 1}</td>
                <td className="py-3 px-6">{rs.name}</td>
                <td className="py-3 px-6">{rs.email}</td>
                <td className="py-3 px-6">{rs.password}</td>
                <td className="flex justify-center gap-1 py-3">
                    <Link
                    href={`/user/view/${rs.id}`} 
                    className="btn btn-info">
                    View
                    </Link>
                    <Link
                    href={`/user/edit/${rs.id}`} 
                    className="btn btn-primary">
                    Edit
                    </Link>
                    <button onClick={()=>handleDelete(rs.id)} className="btn btn-secondary">Delete</button>
                </td>
            </tr>
            ))}
        </tbody>
        </table>
  );
}

components\spinner.tsx

//components\spinner.tsx
export const Spinner = () => {
  return (
    <span className="loading loading-spinner loading-lg"></span>
  );
};

app\user\create\page.tsx

//app\user\create\page.tsx
"use client";

import React, { useState } from "react";
import axios from 'axios' //npm install axios https://www.npmjs.com/package/axios

const CreateUserPage = () => {
    const [userField, setUserField] = useState({
        name: "",
        email: "",
        password: ""
    });
 
    const changeUserFieldHandler = (e) => {
        setUserField({
            ...userField,
            [e.target.name]: e.target.value
        });
        //console.log(userField);
    }

    const onSubmitChange = async (e) => {
        e.preventDefault();
        try {
          const responce= await axios.post("http://127.0.0.1:5000/newuser", userField);
          console.log(responce)
          window.location.href = '/';
        } catch (err) {
            console.log("Something Wrong");
        }
    }
    return (
    <div className="max-w-md mx-auto mt-5">
        <h1 className="text-2xl text-center mb-2">Add New User</h1>
        <div>
        <form>
        <div className="mb-5">
          <label htmlFor="name" className="block text-sm font-medium text-gray-900">
            Full Name
          </label>
          <input
            type="text"
            name="name"
            id="name"
            className="input input-bordered input-primary w-full max-w-xs"
            placeholder="Full Name..."
            onChange={e => changeUserFieldHandler(e)} 
          />
        </div>
        <div className="mb-5">
          <label htmlFor="email" className="block text-sm font-medium text-gray-900">
            Email
          </label>
          <input
            type="email"
            name="email"
            id="email"
            className="input input-bordered input-primary w-full max-w-xs"
            placeholder="Email..."
            onChange={e => changeUserFieldHandler(e)}
          />
        </div>
        <div className="mb-5">
          <label
            htmlFor="password" className="block text-sm font-medium text-gray-900">
            Password
          </label>
          <input
            type="text"
            name="password"
            id="password"
            className="input input-bordered input-primary w-full max-w-xs"
            placeholder="Password..."
            onChange={e => changeUserFieldHandler(e)}
          />
        </div>
         <button type="submit" className="btn btn-primary" onClick={e => onSubmitChange(e)}>Add User</button> 
      </form>
    </div>
    </div>
  );
};
  
export default CreateUserPage;

app\user\edit\[id]\page.tsx

//app\user\edit\[id]\page.tsx
"use client";

import React, { useState, useEffect } from 'react';
import axios from 'axios' //npm install axios https://www.npmjs.com/package/axios
import Link from "next/link";
import { useParams } from 'next/navigation'

export default function ViewUserPage() {
    const {id}=useParams();

    console.log(id);
 
    const [userField, setUserField] = useState({
        name: "",
        email: ""
    });

    useEffect(()=>{
        fetchUser();
    },[id]);
 
    const fetchUser=async()=>{
        try{
            const result=await axios.get("http://127.0.0.1:5000/userdetails/"+id);
            console.log(result.data);
            setUserField(result.data)
 
        }catch(err){
            console.log("Something Wrong");
        }
    }

    const changeUserFieldHandler = (e) => {
        setUserField({
            ...userField,
            [e.target.name]: e.target.value
        });
        console.log(userField);
    }
     
    const onSubmitChange = async (e) => {
        e.preventDefault();
        try {
            await axios.put("http://127.0.0.1:5000/userupdate/"+id, userField);
            window.location.href = '/';
        } catch (err) {
            console.log("Something Wrong");
        }
    }

    return (
    <div className="max-w-md mx-auto mt-5">
      <h1 className="text-2xl text-center mb-2">Edit Form</h1>
            <form>
                <div className="mb-3 mt-3">
                    <label className="block text-sm font-medium text-gray-900"> ID:</label>
                    <input type="text" id="id" name="id" value={id} disabled />
                </div>
                <div className="mb-3 mt-3">
                    <label className="block text-sm font-medium text-gray-900"> Full Name:</label>
                    <input type="text" className="input input-bordered input-primary w-full max-w-xs" placeholder="Enter Your Full Name" name="name" value={userField.name} onChange={e => changeUserFieldHandler(e)} />
                </div>
                <div className="mb-3 mt-3">
                    <label className="block text-sm font-medium text-gray-900">Email:</label>
                    <input type="email" className="input input-bordered input-primary w-full max-w-xs" id="email" placeholder="Enter email" name="email" value={userField.email}  onChange={e => changeUserFieldHandler(e)}/>
                </div>
                <div className="mb-3 mt-3">
                     <label className="block text-sm font-medium text-gray-900">Password:</label>
                      <input type="text" className="input input-bordered input-primary w-full max-w-xs" id="password" placeholder="Enter password" name="password" onChange={e => changeUserFieldHandler(e)} required/>
                </div>
                <button type="submit" className="btn btn-primary" onClick={e=>onSubmitChange(e)}>Update</button>
            </form>
    </div>
  );
}

app\user\view\[id]\page.tsx

//app\user\view\[id]\page.tsx
"use client";

import React, { useState, useEffect } from 'react';
import axios from 'axios' //npm install axios https://www.npmjs.com/package/axios
import Link from "next/link";
import { useParams } from 'next/navigation'

export default function ViewUserPage() {
    const {id}=useParams();

    console.log(id);

    const[user,setUser]=useState([]);
 
    useEffect(()=>{
        fetchUser();
    },[id]);
 
    const fetchUser=async()=>{
        try{
        const result=await axios.get("http://127.0.0.1:5000/userdetails/"+id);
        console.log(result.data);
        setUser(result.data)
 
        }catch(err){
            console.log("Something Wrong");
        }
    }

    return (
    <div className="max-w-md mx-auto mt-5">
      <h1 className="text-2xl text-center mb-2">View User</h1>
      <table className="table table-zebra">
          <thead className="text-sm text-gray-700 uppercase bg-gray-50">
            <tr>
              <th>S No.</th>
              <th>Full Name</th>
              <th>Email</th>             
            </tr>
          </thead>
          <tbody>
            <tr>
                <td>{user.id}</td>
                <td>{user.name}</td>
                <td>{user.email}</td>
            </tr>
          </tbody>
      </table>
    </div>
  );
}

run C:\nextjs>npm run dev
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