Generate Thumbnail Example

Simple_Generate_Thumbnail_Example.js

/*1. install GraphicsMagick on Your PC (I installed it on C:)
/*2. install gm pakcage npm i --save gm
/*3. install request npm i --save request
/*4. test this code
/*
/*
*/
  const fs = require('fs'),
    gm = require('gm').subClass({
      imageMagick: true
    })
  const request = require('request')
  
      const stream2 = gm(request('https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png'))
        .thumbnail('50', '50', '!') //! means exact size 
        .stream()

      stream2.on('data', function (chunk) {
        chunks.push(chunk)
      })

      stream2.on('end', function () {
        var result = Buffer.concat(chunks);
        console.log('final result:', result.toString('base64'));
      })