chore: Setup typescript for the express app

packages/backend/app.js

@@ -1,31 +0,0 @@
-var createError = require('http-errors');
-var express = require('express');
-var logger = require('morgan');
-
-var indexRouter = require('./routes/index');
-
-var app = express();
-
-app.use(logger('dev'));
-app.use(express.json());
-app.use(express.urlencoded({ extended: false }));
-
-app.use('/', indexRouter);
-
-// catch 404 and forward to error handler
-app.use(function(req, res, next) {
-  next(createError(404));
-});
-
-// error handler
-app.use(function(err, req, res, next) {
-  // set locals, only providing error in development
-  res.locals.message = err.message;
-  res.locals.error = req.app.get('env') === 'development' ? err : {};
-
-  // render the error page
-  res.status(err.status || 500);
-  res.render('error');
-});
-
-module.exports = app;

packages/backend/bin/www

@@ -1,90 +0,0 @@
-#!/usr/bin/env node
-
-/**
- * Module dependencies.
- */
-
-var app = require('../app');
-var debug = require('debug')('backend:server');
-var http = require('http');
-
-/**
- * Get port from environment and store in Express.
- */
-
-var port = normalizePort(process.env.PORT || '3000');
-app.set('port', port);
-
-/**
- * Create HTTP server.
- */
-
-var server = http.createServer(app);
-
-/**
- * Listen on provided port, on all network interfaces.
- */
-
-server.listen(port);
-server.on('error', onError);
-server.on('listening', onListening);
-
-/**
- * Normalize a port into a number, string, or false.
- */
-
-function normalizePort(val) {
-  var port = parseInt(val, 10);
-
-  if (isNaN(port)) {
-    // named pipe
-    return val;
-  }
-
-  if (port >= 0) {
-    // port number
-    return port;
-  }
-
-  return false;
-}
-
-/**
- * Event listener for HTTP server "error" event.
- */
-
-function onError(error) {
-  if (error.syscall !== 'listen') {
-    throw error;
-  }
-
-  var bind = typeof port === 'string'
-    ? 'Pipe ' + port
-    : 'Port ' + port;
-
-  // handle specific listen errors with friendly messages
-  switch (error.code) {
-    case 'EACCES':
-      console.error(bind + ' requires elevated privileges');
-      process.exit(1);
-      break;
-    case 'EADDRINUSE':
-      console.error(bind + ' is already in use');
-      process.exit(1);
-      break;
-    default:
-      throw error;
-  }
-}
-
-/**
- * Event listener for HTTP server "listening" event.
- */
-
-function onListening() {
-  var addr = server.address();
-  var bind = typeof addr === 'string'
-    ? 'pipe ' + addr
-    : 'port ' + addr.port;
-  debug('Listening on ' + bind);
-}

packages/backend/package.json

@@ -3,7 +3,9 @@
   "version": "0.1.0",
   "description": "> TODO: description",
   "scripts": {
-    "start": "node ./bin/www",
+    "dev": "nodemon --watch 'src/**/*.ts' --exec 'ts-node' src/app.ts",
+    "build": "tsc",
+    "start": "node dist/index.js",
     "test": "echo \"Error: run tests from root\" && exit 1"
   },
   "dependencies": {
@@ -33,5 +35,13 @@
   },
   "bugs": {
     "url": "https://github.com/automatisch/automatisch/issues"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.13",
+    "@types/http-errors": "^1.8.1",
+    "@types/morgan": "^1.9.3",
+    "@types/node": "^16.10.2",
+    "nodemon": "^2.0.13",
+    "ts-node": "^10.2.1"
   }
 }

packages/backend/routes/index.js

@@ -1,9 +0,0 @@
-var express = require('express');
-var router = express.Router();
-
-/* GET home page. */
-router.get('/', function(req, res, next) {
-  res.json({ hello: 'world' })
-});
-
-module.exports = router;

packages/backend/src/app.ts

@@ -0,0 +1,34 @@
+import createError from 'http-errors';
+import express, { Request, Response, NextFunction } from 'express';
+import logger from 'morgan';
+
+import indexRouter from './routes/index';
+
+const app = express();
+const port = process.env.PORT || '3000';
+
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+
+app.use('/', indexRouter);
+
+app.listen(port, () => {
+  return console.log(`Server is listening on ${port}`)
+})
+
+// catch 404 and forward to error handler
+app.use(function(req: Request, res: Response, next: NextFunction) {
+  next(createError(404));
+});
+
+// error handler
+app.use(function(err: any, req: Request, res: Response, _next: NextFunction) {
+  // set locals, only providing error in development
+  res.locals.message = err.message;
+  res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+  // render the error page
+  res.status(err.status || 500);
+  res.render('error');
+});

packages/backend/src/backend.js

@@ -1,7 +0,0 @@
-'use strict';
-
-module.exports = backend;
-
-function backend() {
-    // TODO
-}

packages/backend/src/routes/index.ts

@@ -0,0 +1,7 @@
+import { Request, Response } from 'express';
+
+const indexRouter = (_request: Request, response: Response) => {
+  return response.json({ hello: 'world!' })
+};
+
+export default indexRouter;

packages/backend/tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "esModuleInterop": true,
+    "target": "es6",
+    "noImplicitAny": true,
+    "moduleResolution": "node",
+    "sourceMap": true,
+    "outDir": "dist",
+    "baseUrl": ".",
+    "paths": {
+      "*": [
+        "node_modules/*",
+        "src/types/*"
+      ]
+    }
+  },
+  "include": [
+    "src/**/*"
+  ]
+}