thumbgen.js

var http = require('http');
var fs = require('fs');
var fetch = require('node-fetch');
const exec = require('child_process').exec;

var sourceUrl = "http://172.20.11.223:9099/services/Camic_TCIA/Image/query/find"

function freeze(time) {
    const stop = new Date().getTime() + time;
    while(new Date().getTime() < stop);
}

fetch(sourceUrl).then(x=>x.json()).then(x=>{
  for(i in x){
  a = x[i]
  let prefix = "http://tcia-path-a1/fcgi-bin/iipsrv.fcgi?FIF="
  let location = a['file-location']
  var url = prefix + location + "&WID=200&CVT=png"
  // get it
  // if it's new
  if (a['timestamp']> 1543696493){
    console.log(url)
    exec("curl \"" + url +"\" > " + a['case_id']+".png")
    freeze(5000)
  }
}})

//"http://tcia-path-a1/fcgi-bin/iipsrv.fcgi?FIF=/data/cptac/images/test8/test8/101437.svs&WID=400&CVT=png"