How to use the fhir.DSTU2 function in fhir

server.start((err) => {
      t.error(err)

      const pat = _.cloneDeep(require('./resources/Patient-1.json'))
      delete pat.id

      const fhir = new FHIR(FHIR.DSTU2)
      const patientXML = fhir.JsonToXml(JSON.stringify(pat))

      const updatedHeaders = _.assign({ 'accept': ['application/xml', 'application/xml+fhir'], 'Content-Type': 'application/xml' }, headers)

      request.post({
        url: 'http://localhost:3447/fhir/Patient',
        headers: updatedHeaders,
        body: patientXML
      }, (err, res, body) => {
        t.error(err)
        t.equal(res.statusCode, 201, 'response status code should be 201')

        t.ok(res.headers['location'], 'should have a location header set')
        t.match(res.headers['location'], /\/fhir\/Patient\/[\w-]+\/_history\/[\w-]+/, 'should return a location with both id and vid present')

        const c = db.collection('Patient')

*/

'use strict'

const FHIR = require('fhir')
const config = require('../config')

const profileLoader = require('../fhir/profile-loader')()

let fhir = null
switch (config.getConf('server:fhirVersion')) {
  case 'dstu1':
    fhir = new FHIR(FHIR.DSTU1)
    break
  case 'dstu2':
    fhir = new FHIR(FHIR.DSTU2)
    break
  case 'stu3':
    fhir = new FHIR(FHIR.STU3)
    break
}

module.exports = () => {
  return {
    hooks: {
      before: [
        {
          resourceType: '*',
          interactions: [ 'create', 'update' ],
          userType: '*',
          function: (interaction, ctx, resourceType, resource, callback) => {
            if (!config.getConf('validation:enabled')) {

const matchingIndexes = require('../scripts/matching-indexes')(mongo)
const moduleLoader = require('./fhir/module-loader')(mongo)
const profileLoader = require('./fhir/profile-loader')()

const acceptedJSONContentTypes = ['application/json+fhir', 'application/fhir+json', 'application/json', 'text/json']
const acceptedXMLContentTypes = ['application/xml+fhir', 'application/fhir+xml', 'application/xml', 'text/xml']

process.title = 'Hearth'

let fhir = null
switch (config.getConf('server:fhirVersion')) {
  case 'dstu1':
    fhir = new FHIR(FHIR.DSTU1)
    break
  case 'dstu2':
    fhir = new FHIR(FHIR.DSTU2)
    break
  case 'stu3':
    fhir = new FHIR(FHIR.STU3)
    break
}

if (config.getConf('createIndexes')) {
  matchingIndexes.createMatchingIndexes((err) => {
    if (err) {
      logger.error(err)
    }
    logger.info('Matching Indexes created')
  })
}

moduleLoader.loadModules()