eirenerx-sdk/lib/patient.js

EireneRx JavaScript SDK

// patient api
//
// Required Options
//
// * key - vendor key for authorization
// * secret - vendor secret for authorization
// * sponsor - eirenerx sponsor id (ie customer number)
// * center - eirenerx center id (ie office/location number)
// * identifier - EHR Unique Patient Identifier
// if identifier is set, then this module will find
// the patient and return a patient object
// if the indentifier is not set, then this module will
// create an empty instance of a patient object that
// can be filled and pushed to EireneRx
// * api url
// eirenerx api url, https://io.eirenerx.com https://io-staging.eirenerx.com
var request = require('request');
var PATIENTS = 'api/vendor/v1/patients';
var validate = require('./validate-patient');

module.exports = function(options, identifier, callback) {
  var patient = function(identifier, data) {
    var isNew = data ? false : true;

    var demographics = data ? data.demographics : { identifier: identifier };
    var allergies = data ? data.allergies : [];
    var medications = data ? data.medications : [];
    var new_rx_requests = data ? data.new_rx_requests : [];

    var save = function(p, callback) {
      if (typeof p == 'function') { p(new Error('Patient Object must be first param')); }
      var params = {
        auth: {
          user: options.key,
          pass: options.secret
        },
        headers: {
          'X-Sponsor-Id': options.sponsor,
          'X-Center-Id': options.center
        },
        json: {
          demographics: p.demographics || {},
          allergies: p.allergies || []
        }
      };
      if (isNew) {
        // if validate returns null then data is valid
        // if validate returns object then data has errors
        var results = validate(params.json);

        if (!results.valid) { return callback(results); }
        // POST Patient Data
        request.post([options.api, PATIENTS].join('/'), params, handler);

      } else {
        // PUT Patient Data
        request.put([options.api, PATIENTS, identifier].join('/'), params, handler);
      }

      function handler(e,r,b) {
        if (e) { return callback(e); }
        if (b.errors) { return callback(b.errors); }
        callback(null, b);
      }
    };


    return {
      demographics: demographics,
      allergies: allergies,
      medications: medications,
      new_rx_requests: new_rx_requests,
      save: save
    };
  };
  request.get([options.api, PATIENTS, identifier].join('/'), {
    auth: {
      user: options.key,
      pass: options.secret
    },
    headers: {
      'X-Sponsor-Id': options.sponsor,
      'X-Center-Id': options.center
    },
    json: true,
  }, function(e, r, b) {
    if (e) { return callback(e); }
    // If Patient Not Found.... Then create new Patient Object
    if (b.length) { return callback(null, patient(identifier)); }

    callback(null, patient(identifier, b));
  });


};