Mysql Express Reactjs Nodejs crud issue using Axios

There are three input fields in the form, i want to post data from these input fields to Mysql database table using Axios. i tried many times but i cannot do it, i need code of connection to database + insert query

//PostForm.js
import React, { Component } from 'react'
import axios from "axios";
export default class PostForm extends Component {
    constructor(props) {
        super(props)   
        this.state = {
            userId:"",
             name:"",
             email:""
        }
    }
    changeHandler =e=>{
        this.setState({[e.target.name]: e.target.value})
    }
    submitHandler= e=>{
        e.preventDefault()
        const {userId, name, email}= this.state
        console.log(this.state)
        axios.post('https://jsonplaceholder.typicode.com/posts', this.state)
        .then(response=>{
            console.log(response)
        })
        .catch(error =>{
            console.log(error)
        })
    }
    render() {
        const {userId, name, email}= this.state
        return (
            <div>
                <form onSubmit={this.submitHandler}>
                    <div>
                    <input type="text" name="userId" value={userId}  onChange={this.changeHandler}/>
                    </div>
                    <div>
                    <input type ="text" name="name" value={name} onChange={this.changeHandler}/>
                    </div>
                    <div>
                    <input type= "text" name="email" value={email} onChange={this.changeHandler}/>
                    </div>
                    <button type="submit">Submit</button>                   
                </form>
            </div>
        )
    }
}