app.js

var express = require('express')
var bodyParser = require('body-parser')
var methodOverride = require('method-override')
var http = require('http')
var path = require('path')
var cp = require('child_process')
var TelemetryUtil = require('sb_telemetry_util')
var telemetry = new TelemetryUtil()
var fs = require('fs')
var configUtil = require('sb-config-util')

const contentProviderConfigPath = path.join(__dirname, '/config/contentProviderApiConfig.json')
var contentProviderApiConfig = JSON.parse(fs.readFileSync(contentProviderConfigPath))
const telemtryEventConfig = JSON.parse(fs.readFileSync(path.join(__dirname, 'config/telemetryEventConfig.json')))

var reqDataLimitOfContentUpload = '50mb'

const port = process.env.sunbird_content_service_port ? process.env.sunbird_content_service_port : 5000

globalEkstepProxyBaseUrl = process.env.sunbird_content_plugin_base_url ? process.env.sunbird_content_plugin_base_url : 'https://qa.ekstep.in'

const contentProviderBaseUrl = process.env.sunbird_content_provider_api_base_url ? process.env.sunbird_content_provider_api_base_url : 'https://qa.ekstep.in/api'
const contentProviderApiKey = process.env.sunbird_content_provider_api_key

const learnerServiceApiKey = process.env.sunbird_learner_service_api_key
const learnerServiceBaseUrl = process.env.sunbird_learner_service_base_url ? process.env.sunbird_learner_service_base_url : 'https://dev.open-sunbird.org/api'

const learnerServiceLocalBaseUrl = process.env.sunbird_learner_service_local_base_url
  ? process.env.sunbird_learner_service_local_base_url
  : 'http://learner-service:9000'

configUtil.setContentProviderApi(contentProviderApiConfig.API)
configUtil.setConfig('BASE_URL', contentProviderBaseUrl)
configUtil.setConfig('Authorization_TOKEN', 'Bearer ' + contentProviderApiKey)
configUtil.setConfig('LEARNER_SERVICE_BASE_URL', learnerServiceBaseUrl)
configUtil.setConfig('LEARNER_SERVICE_LOCAL_BASE_URL', learnerServiceLocalBaseUrl)
configUtil.setConfig('LEARNER_SERVICE_AUTHORIZATION_TOKEN', 'Bearer ' + learnerServiceApiKey)
configUtil.setConfig('DIALCODE_GENERATE_MAX_COUNT', 20000)
configUtil.setConfig('CONTENT_UPLOAD_REQ_LIMIT', reqDataLimitOfContentUpload)
process.env.sunbird_cassandra_ips = process.env.sunbird_cassandra_ips || '127.0.0.1'
process.env.sunbird_cassandra_port = process.env.sunbird_cassandra_port || 9042
process.env.dial_code_image_temp_folder = 'temp'

var app = express()
const isEkStepProxyRequest = function (req) {
  let url = req.url
  const uploadAPI = configUtil.getConfig('UPLOAD_CONTENT_URI')
  const uploadUrlAPI = configUtil.getConfig('CONTENT_UPLOAD_URL_URI')
  return url && ((url.indexOf(uploadAPI) > -1 && !(url.indexOf(uploadUrlAPI) > -1)) || url.indexOf('/telemetry') > -1)
}

const bodyParserJsonMiddleware = function () {
  return function (req, res, next) {
    if (isEkStepProxyRequest(req)) {
      return next()
    } else {
      return bodyParser.json({limit: reqDataLimitOfContentUpload})(req, res, next)
    }
  }
}

app.use(bodyParserJsonMiddleware())
// app.use(bodyParser.urlencoded({
//     extended: true
// }));

app.use(methodOverride())

// Cache-Control, X-Requested-With these two headers required for upload file through fine-upload library
app.use(function (req, res, next) {