index.js

const request = require('request-promise');
const fs = require("fs");

module.exports = function(apiKey) {
  return new Client(apiKey)
}



function Client(apiKey) {
  this.apiKey = apiKey;
}

Client.prototype.predict = function(options) {
  modelType = options.modelType
  modelId = options.modelId
  filePath = options.filePath || ''
  fileURL = options.fileURL
  fileName = filePath ? filePath.split('/')[filePath.split('/').length - 1] : ''

  let urlNanoNets = `https://app.nanonets.com/api/v2/${modelType}/Model/${modelId}/LabelFile/`
  var urlOptions = {
    'method': 'POST',
    'url': urlNanoNets,
    'headers': {
      'Content-Type': 'application/x-www-form-urlencoded',
      'Authorization' : "Basic " + Buffer.from(this.apiKey + ":").toString("base64")
    },
    'formData' : {
      'modelId': modelId,
    }
  }

  if(fileURL){
    urlOptions.formData = {
      'urls' : fileURL,
      'modelId': modelId
    }
  }
  if(filePath) {
      urlOptions.formData = {
      'modelId': modelId,
        'file': {
        'value': fs.createReadStream(filePath),
        'options': { 
          'filename': fileName,
          'contentType': null
        }
      }
    }
  }
  
  return request(urlOptions)
  
}