Browser DNA Example

import { Request, Response } from 'express'; import { SqlDb } from '@ch1/sql-tables'; import { readFile } from 'fs'; import { join } from 'path'; const files: { [key: string]: string } = {}; export interface Handler { handler(req: Request, res: Response, next?: Function): any; method: 'delete' | 'get' | 'patch' | 'post' | 'put'; route: string; } export const api: (sql: SqlDb) => Handler[] = (sql: SqlDb) => [ { handler: bundleJs, method: 'get', route: '/bundle.js', }, { handler: getLogin, method: 'get', route: '/login', }, { handler: okay200, method: 'post', route: '/login', }, ]; function okay200(req: Request, res: Response) { res.sendStatus(200); } function getLogin(req: Request, res: Response) { res.send(` Browser DNA Example `); } function bundleJs(req: Request, res: Response) { read(join(__dirname, 'bundle.js')) .then((result: string) => { res.setHeader('Content-Type', 'application/javascript'); res.send(result); }) .catch((err: Error) => { res.status(500); res.send(err); }); } function read(path: string) { if (files[path]) { return Promise.resolve(files[path]); } return new Promise((resolve, reject) => { readFile(path, { encoding: 'utf8' }, (err, result) => { if (err) { reject(err); } else { files[path] = result; resolve(result); } }) }); }