openhim-core/src/middleware/retrieveTCPTransaction.js

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

import * as tcpAdapter from '../tcpAdapter'
import { config } from '../config'

export async function koaMiddleware (ctx, next) {
  // the body contains the key
  const transaction = tcpAdapter.popTransaction(ctx.body)

  ctx.body = transaction.data
  ctx.authorisedChannel = transaction.channel

  await next()
}