npm install mcanvas --save

import MCanvas from 'mcanvas'

// create the canvas by width and height;
import MC from 'mcanvas'

const mc = new MC({
	width,
	height,
	backgroundColor,
});

// prepare background-image
mc.background(image,{
    left:0,
    top:0,
    color:'#000000',
    type:'origin',
})

// prepare the image material, add into queue;
.add('images/nose.png',{
    width:183,
    pos:{
        x:250,
        y:369,
        scale:0.84,
        rotate:1,
    },
})

// add text;
.text('normal<br><s>smallsmall</s>',{
    width:'300px',
    align:'center',
    pos:{
        x:0,
        y:0,
    },
})

// prepare watermark;
.watermark(img ,{
    width:'40%',
    pos:'rightBottom',
})

// draw all material that prepared before, and get the base64-image
.draw( b64 =>{
    console.log(b64);
});

// MCrop,  a image cropper
import { MCrop } from 'mcanvas'

MCrop('http://mtapplet.meitudata.com/596c72073971d86b5128.jpg', {
    // cropper shape
    type: 'circle',
    // crop by pos
    x: 'center',
    y: '0',
    // radius
    r: 200,
    // the success callback
    success(b64) {
        // the base64 of cropped image
    },
})