mongo-express/lib/middleware.js

Web-based admin interface for MongoDB

import fs from 'node:fs';
import { fileURLToPath } from 'node:url';
import express from 'express';
import swig from 'free-swig';
import fileUpload from 'express-fileupload';
import * as swigFilters from './filters.js';
import router from './router.js';

const middleware = async function (config) {
  const app = express();

  app.locals.assets = JSON.parse(fs.readFileSync(fileURLToPath(new URL('../build-assets.json', import.meta.url))));

  // Set up swig
  const swigOptions = {
    cache: process.env.NODE_ENV === 'production' ? 'memory' : false,
  };
  const swigEngine = new swig.Swig(swigOptions);
  app.engine('html', swigEngine.renderFile);
  for (const name of Object.keys(swigFilters)) {
    swig.setFilter(name, swigFilters[name]);
  }

  // App configuration
  app.set('views', fileURLToPath(new URL('views', import.meta.url)));
  app.set('view engine', 'html');
  app.set('view options', { layout: false });

  // Handle file upload
  app.use(fileUpload({
    limits: { fileSize: 50 * 1024 * 1024 },
  }));

  app.use('/', await router(config));

  app.set('read_only', config.options.readOnly || false);
  app.set('fullwidth_layout', config.options.fullwidthLayout || false);
  app.set('me_confirm_delete', config.options.confirmDelete || false);
  app.set('me_collapsible_json', config.options.collapsibleJSON || false);
  app.set('me_collapsible_json_default_unfold', config.options.collapsibleJSONDefaultUnfold || false);
  app.set('me_no_export', config.options.noExport || false);
  app.set('gridFSEnabled', config.options.gridFSEnabled || false);
  app.set('no_delete', config.options.noDelete || false);

  return app;
};

export default middleware;