contact from component

import React from 'react';
import '../form-input/form-input.component';
import FormInput from '../form-input/form-input.component';
import './reservation.style.scss'
import '../firebase/firebase';
import firebase from '../firebase/firebase';



class Reservation extends React.Component{
    constructor(){
        super();

        this.state={
            name:'',
            email:'',
            mobile:'',
            address:'',
            phone:''
        };
    }





    handleChange=(event)=>{
        this.setState({[event.target.name]:event.target.value})
    }
 

    handleSubmit=(event)=>{
        this.preventDefault();
        
        
        firebase.database()
        .ref('coustomer')
        .push({
            name:this.state.name,
            email:this.state.email,
            mobile:this.state.mobile,
            address:this.state.address,
            phone:this.state.phone
        })
        
    }


    render(){
        return(
            <div className='reservation'>
            <h2>BOOK NOW </h2>
                <form onSubmit={this.handleSubmit}>
                    
                    <FormInput type='text' label='Name' name='name' value={this.state.name} onChange={this.handleChange}/>
                   
                    <FormInput type='email' label='Email' name='email' value={this.state.email} onChange={this.handleChange}/>
                    
                    <FormInput type='number' label='Mobile No' name='mobile' value={this.state.mobile} onChange={this.handleChange}/>
                    
                    <FormInput  type='text' label='Adderss' name='address' value={this.state.address} onChange={this.handleChange}/>
                    
                    <FormInput type='number' label='Phone No' name='phone' value={this.state.phone} onChange={this.handleChange}/>
                    <button type='submit'> Book </button>
                </form>
            </div>
        )
    }
}

export default Reservation;

firebase component

import firebase from 'firebase/app';
import 'firebase/firestore';




const firebaseConfig = {
    apiKey: "AIzaSyAuHwK2sMNsHdKa610pJtz6_qzxeTiAQdo",
    authDomain: "barber-db-8a2d0.firebaseapp.com",
    databaseURL: "https://barber-db-8a2d0.firebaseio.com",
    projectId: "barber-db-8a2d0",
    storageBucket: "barber-db-8a2d0.appspot.com",
    messagingSenderId: "292629629913",
    appId: "1:292629629913:web:1d35eaec518efd06e667c8",
    measurementId: "G-BM5T419CPM"
  };

firebase.initializeApp(firebaseConfig);


export default firebase;