add simple rest api example

guides/nodejs/home.md

@@ -10,4 +10,4 @@ dateCreated: 2023-06-27T11:06:59.640Z
 
 # Pages
 
-N/A
+- [Creating a Simple REST API](/guides/nodejs/pages/creating-a-simple-rest-api)

guides/nodejs/pages/creating-a-simple-rest-api.md

@@ -0,0 +1,94 @@
+---
+title: Creating a Simple REST API
+description: Creating a simple REST API with NodeJS and Express
+published: true
+date: 2023-06-28T20:38:30.081Z
+tags: nodejs, rest, api, express
+editor: markdown
+dateCreated: 2023-06-28T20:38:59.640Z
+---
+
+# Creating a Simple REST API
+
+## Introduction
+
+In this guide we will be creating a simple REST API using NodeJS and Express. We will be using the following tools:
+
+- NodeJS
+- Express
+
+## Prerequisites
+
+- NodeJS installed
+- NPM installed
+
+## Creating the project
+
+1. First we need to create a new directory for our project. You can do this by creating a new folder in your file explorer or by using the following command:
+
+```bash
+mkdir nodejs-rest-api
+```
+
+2. Next, we need to navigate to our new directory. We can do this by opening the folder in our file explorer or by using the following command:
+
+```bash
+cd nodejs-rest-api
+```
+
+3. Next, we need to initialize our project. We can do this by running the following command:
+
+```bash
+npm init -y
+```
+
+4. Next, we need to install the Express package. We can do this by running the following command:
+
+```bash
+npm install express
+```
+
+5. Next, we need to create a new file called `index.js`.
+
+6. Next, we need to open the `index.js` file and add the following code:
+
+```javascript
+const express = require("express");
+const app = express();
+```
+
+This will import the Express package and create a new Express application.
+
+7. Next, we need to add the following code to the `index.js` file:
+
+```javascript
+app.get("/", (req, res) => {
+	res
+		.contentType("application/json")
+		.send(JSON.stringify({ message: "Hello World!" }));
+});
+```
+
+This will create a new route that will return a JSON object with the message "Hello World!".
+
+8. Next, we need to add the following code to the `index.js` file:
+
+```javascript
+app.listen(3000, () => {
+	console.log("Server is running on port 3000");
+});
+```
+
+This will start the server on port 3000.
+
+9. Next, we need to run the following command to start the server:
+
+```bash
+node index.js
+```
+
+10. Next, we need to open our browser and navigate to `http://localhost:3000/`. We should see the message "Hello World!".
+
+## Conclusion
+
+In this guide we created a simple REST API using NodeJS and Express. We created a new directory for our project, initialized our project, installed the Express package, created a new file called `index.js`, added the code to the `index.js` file, and started the server.