login=()=>{
    fetch('http://192.168.0.101:9090/Shakehands',{
        method:'post',
        headers:{
            'Accept':'application/json',
            'Content-type':'application/json',
        },
        body:JSON.stringify({
            email:this.email,
            password:this.password,
            text:"Login"
        })
    })
    .then((responseData)=>{
        return responseData.json();
    })
    .then((responseData)=>{
        //console.log(responseData);
        //alert(this.state.insdata)
        if(responseData.success=true){
            this.props.navigation.navigate('Home');
        }
        else{
            alert(responseData.message);
        }
    }).done();
}

if(rows.length>0){
        res.send({'success':true,'message':'Welcome'})
    }

    else{
        res.send(JSON.stringify({'success':false,'message':'User not found'}))
    }
})