Compare images from URL or Buffer based on looks-same module

ImageCompare.service.ts

import axios from 'axios';
import LooksSame from 'looks-same'
import path from 'path'

type Image = string | Buffer

class ImageCompareService {
    public rootPath: string;
    public staticPath: string;

    constructor() {
        this.rootPath = path.resolve(`${__dirname}/../../`)
        this.staticPath = this.rootPath + '/static'
    }

    async imgUrlToBuffer(url: string) {
        return axios
            .get(url, { responseType: 'arraybuffer' })
            .then(response => Buffer.from(response.data, 'binary'))
    }

    compare(x: Image, y: Image): Promise<any> {
        const config = {
            strict: true
        }
        return new Promise((resolve, reject) => {
            LooksSame(x, y, config, (error, response) => {
                if (error) reject(error)
                resolve(response)
            })
        })
    }
}

export default new ImageCompareService();