This tutorial will teach you how to make Crud Application using Node JS and Mysql .
Create the Node Js Project Type on type command prompt
npm init
and press enter key.after that you have the fill configation of project.after done stuff you
will get the package.json file.
after that you have to install the following dependencies
Express
body-parser
Mysql
you have to create the database and tables in mysql database.
After done the stuff you have to create the file server.js
Server.js
const express = require('express')
const bodyParser = require('body-parser')
const mysql = require("mysql");
const server = express();
server.use(bodyParser.json());
//Establish the database connection
const db = mysql.createConnection({
host: "localhost",
user: "root",
password: "",
database: "dbsmschool",
});
db.connect(function (error) {
if (error) {
console.log("Error Connecting to DB");
} else {
console.log("successfully Connected to DB");
}
});
//Establish the Port
server.listen(8085,function check(error) {
if (error)
{
console.log("Error....dddd!!!!");
}
else
{
console.log("Started....!!!! 8085");
}
});
//Create the Records
server.post("/api/student/add", (req, res) => {
let details = {
stname: req.body.stname,
course: req.body.course,
fee: req.body.fee,
};
let sql = "INSERT INTO student SET ?";
db.query(sql, details, (error) => {
if (error) {
res.send({ status: false, message: "Student created Failed" });
} else {
res.send({ status: true, message: "Student created successfully" });
}
});
});
//view the Records
server.get("/api/student", (req, res) => {
var sql = "SELECT * FROM student";
db.query(sql, function (error, result) {
if (error) {
console.log("Error Connecting to DB");
} else {
res.send({ status: true, data: result });
}
});
});
//Search the Records
server.get("/api/student/:id", (req, res) => {
var studentid = req.params.id;
var sql = "SELECT * FROM student WHERE id=" + studentid;
db.query(sql, function (error, result) {
if (error) {
console.log("Error Connecting to DB");
} else {
res.send({ status: true, data: result });
}
});
});
//Update the Records
server.put("/api/student/update/:id", (req, res) => {
let sql =
"UPDATE student SET stname='" +
req.body.stname +
"', course='" +
req.body.course +
"',fee='" +
req.body.fee +
"' WHERE id=" +
req.params.id;
let a = db.query(sql, (error, result) => {
if (error) {
res.send({ status: false, message: "Student Updated Failed" });
} else {
res.send({ status: true, message: "Student Updated successfully" });
}
});
});
//Delete the Records
server.delete("/api/student/delete/:id", (req, res) => {
let sql = "DELETE FROM student WHERE id=" + req.params.id + "";
let query = db.query(sql, (error) => {
if (error) {
res.send({ status: false, message: "Student Deleted Failed" });
} else {
res.send({ status: true, message: "Student Deleted successfully" });
}
});
});
i have attached the video link below. which will do this tutorials step by step.
