Simple render with node.js and no libraries dependencies.

Template

https://mockupsjar.com/mockups/rustic-frame

Input image

https://dummyimage.com/400x600/4697c2/fff.jpg

Render output

Code sample

const https = require('https')

const API_URL = process.env.API_URL // https://api.mockupsjar.com
const API_TOKEN = process.env.API_TOKEN // Put your API TOKEN in here

// template: https://mockupsjar.com/mockups/rustic-frame
const url = 'https://api.mockupsjar.com/mockups/render/rustic-frame'
const postData = JSON.stringify({
    zoomLevel: 1,
    format: 'jpg',
    input: ['https://dummyimage.com/400x600/4697c2/fff.jpg']
})
const options = {
    method: 'POST',
    headers: {
        Authorization: 'Bearer ' + API_TOKEN,
        'Content-Type': 'application/json',
        'Content-Length': Buffer.byteLength(postData)
    }
}

console.log('mockupsjar - simple node render')

let req = https.request(url, options, (res) => {
    console.log('statusCode:', res.statusCode)
    res.on('data', (d) => {
        process.stdout.write(d)
    })
})
req.on('error', (e) => {
    console.error(e)
})
req.write(postData)
req.end()

Response

statusCode: 200
{
   "status":"success",
   "data":{
      "slug":"rustic-frame",
      "name":"Rustic Frame",
      "status":"successful",
      "zoomLevel":1,
      "format":"jpg",
      "result":{
         "url":"https://mockupsjar-production.s3-eu-west-1.amazonaws.com/renders/mockup-jyOuSKo5B5k4tarA.jpg",
         "previewUrl":"https://mockupsjar-production.s3-eu-west-1.amazonaws.com/renders/C95KWij2zEb5xM4k-9XYmfzHecuUusOmM.jpg"
      }
   }
}