openhim-core/src/config/connection.js

The OpenHIM core application that provides logging and routing of http requests

import mongoose from 'mongoose'
import uriFormat from 'mongodb-uri'
import { config } from './'

config.mongo = config.get('mongo')

mongoose.set('useNewUrlParser', true)

export const connectionAgenda = mongoose.createConnection(encodeMongoURI(config.mongo.url))
export const connectionAPI = mongoose.createConnection(encodeMongoURI(config.mongo.url), getMongoOptions())
export const connectionATNA = mongoose.createConnection(encodeMongoURI(config.mongo.atnaUrl))
export const connectionDefault = mongoose.createConnection(encodeMongoURI(config.mongo.url))

function encodeMongoURI (urlString) {
  if (urlString) {
    let parsed = uriFormat.parse(urlString)
    urlString = uriFormat.format(parsed);
  }
  return urlString;
}

function getMongoOptions () {
  return {
    readPreference: config.mongo.openHIMApiReadPreference,
    readConcern: {level: config.mongo.openHIMApiReadConcern},
    w: config.mongo.openHIMApiWriteConcern
  }
}

if (process.env.NODE_ENV === 'test') {
  exports.encodeMongoURI = encodeMongoURI
}