Medium - Image Manipulation using NodeJS - Cropping endpoint

server.js

const express = require('express');
const app = express();
const gm = require('gm'); // Require the GraphicsMagick wrapper for node
const fs = require('fs'); // To clean up after the we generate the output image file
const port = 1337;

app.get('/ping', (request, response) => {
  response.send('Pong!');
});

app.get('/crop/:width/:height', (request, response) => {
  
  const { width, height } = request.params; // Get the width and height from the request parameters
  
  gm('/path/to/image/file')
    .crop(width, height)
    .write('./tmp.png', (err) => {
      if (err) {
        console.log(err); 
      } else {
        response.sendFile('./tmp.png');
      }
    })

   fs.unlinkSync('./tmp.png'); // Delete the temporary file that we created in the cropping task
});

app.listen(port, () => {
  console.log(`Server running on port ${port}`);
});