Unlock the Power of Deno: A Secure Runtime for JavaScript
Getting Started with Deno and MongoDB
Deno, a revolutionary runtime for JavaScript, offers a secure and efficient way to build applications. By default, it supports and configures TypeScript, making it an attractive choice for developers. In this article, we’ll explore how to integrate MongoDB, a popular cross-platform document-oriented database, into a Deno application.
Prerequisites
Before we dive in, ensure you have:
- Familiarity with TypeScript
- VS Code or any code editor installed on your development machine
- Basic knowledge of MongoDB
- POSTMAN installed on your local machine
- Deno installed on your local machine (if not, follow the installation instructions below)
Installing Deno
If you’re using a Mac, open your terminal and run: curl -fsSL https://deno.land/x/install/install.sh | sh. For Windows, run: iwr https://deno.land/x/install/install.ps1 -useb | iex or use Chocolatey: choco install deno.
Setting Up the Server
Create a server.js file and set up your Deno server using Oak, a middleware framework for HTTP servers. Run deno run --allow-net server.ts to serve your application. Note that Deno’s security requires the --allow-net flag.
Configuring MongoDB
Create a db.js file to set up your MongoDB configuration. Import the plugin, initialize it, and create an instance of the mongoClient. Connect to MongoDB and set up a User collection. Define a TypeScript interface for your MongoDB model, which will take a name, email, phone, and a generated Mongo ID.
Building a CRUD Application
To test your MongoDB configuration, create a simple CRUD application. Add routes.ts and controller.ts files to handle routes and MongoDB logic, respectively. Modify your server.ts file to incorporate these new configurations.
Defining Route Methods
Create the getUser method, bringing in the instance of your database from db.ts. Implement the createUser method, remembering to await body.value to handle asynchronous requests.
Testing Endpoints
Use POSTMAN to test your endpoints. Try getting users and creating a new user to verify your application is working as expected.
The Benefits of Deno
Setting up an application in Deno is surprisingly easy and secure. With its caching mechanism, Deno provides faster performance than traditional Node.js applications. Plus, you can choose any database you like, as long as there’s a Deno controller available.
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