detect food js

detectfood.js

const spawn = require('child_process').spawn;

//create friendly js prediction
function decodePrediction(str){
     let decode = str.split('-');
     return {
          "label" : decode[0],
          "percentage" : Math.trunc(decode[1])
     }
}

//call to vggModel from.py
async function getPrediction(path){
     return new Promise((resolve,reject)=>{
          const ls = spawn('python', ['vggModel.py', path]);
          ls.stdout.on('data', (data) => {
               let pred = decodePrediction(data.toString())
               resolve(pred)
          });

          ls.on('close', function (code) {
               if(code == 1){
                    reject('cant_process');
               }
          });
     })
}


module.exports = { getPrediction }