Initial commit with simple express server setup

.gitignore

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+/node_modules

index.js

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+const express = require("express");
+const app = express();
+
+/**
+ * Config vars
+ */
+
+const PORT = process.env.PORT || 4000;
+
+/**
+ * Middlewares
+ */
+
+/**
+ * morgan:
+ *
+ * simple logging middleware so you can see
+ * what happened to your request
+ *
+ * example:
+ *
+ * METHOD   PATH        STATUS  RESPONSE_TIME   - Content-Length
+ *
+ * GET      /           200     1.807 ms        - 15
+ * POST     /echo       200     10.251 ms       - 26
+ * POST     /puppies    404     1.027 ms        - 147
+ *
+ * github: https://github.com/expressjs/morgan
+ *
+ */
+
+const loggerMiddleWare = require("morgan");
+app.use(loggerMiddleWare("dev"));
+
+/**
+ *
+ * express.json():
+ * be able to read request bodies of JSON requests
+ * a.k.a. body-parser
+ * Needed to be able to POST / PUT / PATCH
+ *
+ * docs: https://expressjs.com/en/api.html#express.json
+ *
+ */
+
+const bodyParserMiddleWare = express.json();
+app.use(bodyParserMiddleWare);
+
+/**
+ * Routes
+ *
+ */
+
+// GET endpoint for testing purposes, can be removed
+app.get("/", (req, res) => {
+  res.send("Hi from express");
+});
+
+// POST endpoint for testing purposes, can be removed
+app.post("/echo", (req, res) => {
+  res.json({
+    youPosted: {
+      ...req.body
+    }
+  });
+});
+
+// Listen for connections on specified port (default is port 4000)
+app.listen(PORT, () => {
+  console.log(`Listening on port: ${PORT}`);
+});