post-get-service/lib/server_routes/index.js

simple way to create node http in memory server

// @ts-check
const fastify = require('fastify');
const cors = require('@fastify/cors');

function require_module_from_string(src, filename = '') {
  const Module = module.constructor;
  // @ts-ignore
  const mod = new Module();
  mod._compile(src, filename);
  return mod.exports;
}

const { set_authorization_middleware } = require('./authorization');
const { get_routing_model } = require('../routing_templates');

module.exports = function (model) {
  const { debug } = model;

  const app = fastify({ logger: Boolean(debug) });
  app.register(cors);

  const router_plugin = require_module_from_string(get_routing_model(model));

  // if fake server model contains authorization property
  // next execution will register a fastify preHandler hook
  // that mirrors koa-bearer-token behavior
  // @ts-ignore
  set_authorization_middleware(app, model);

  app.register(router_plugin);

  return {
    app,
  };
};