@apolitical/server/src/loaders/express.loader.js

Node.js module to encapsulate Apolitical's express server setup

'use strict';

module.exports = ({
  documentationLoader,
  loggerLoader,
  errorMiddleware,
  middlewaresLoader,
  probesLoader,
  fallbackLoader,
}) => {
  // Main (express) loader
  return async function load(app, opts) {
    // Enable strict routing (treat "/foo" and "/foo/" as different)
    if (opts.strictRouting) {
      app.enable('strict routing');
    }
    // Load probes
    probesLoader(app, opts);
    // Load useful middlewares
    middlewaresLoader(app, opts);
    // Load logger
    await loggerLoader(app, opts);
    // Load custom resources
    if (opts.appLoader) {
      await opts.appLoader(app);
    }
    // Load documentation
    documentationLoader(app, opts);
    // Load fallback routing
    fallbackLoader(app, opts);
    // Use error handler
    if (opts.handleErrors) {
      app.use(errorMiddleware(opts));
    }
  };
};