How to start with Deno? Create HTTP server using Deno

Here we discussed the installation process of Deno and will create an HTTP server using Deno

How to Install

firstly we need to install Deno in our system.

for Mac or Linux, use the following command

curl -fsSL https://deno.land/x/install/install.sh | sh

for Windows

iwr https://deno.land/x/install/install.ps1 -useb | iex

After installation to check it successfully installed, type deno in the terminal and you will get following screen

now as announced deno support typescript, let’s check it

write a simple function to add two numbers in typescript

save it and execute using the command

deno run add.ts

yes! as we can see here deno supports Typescript.

Create HTTP Server

Since in deno we use ES module so we don’t need to require module as we did in node, and also don’t need to install npm packages. in Deno, we simply import as we did in react and here we import modules directly from web-server. E.g.

import { serve } from “https://deno.land/std@0.54.0/http/server.ts";

and when we run this code it will download whatever stored in this URL “https://deno.land/std@0.54.0/http/server.ts” and cache it locally. and whenever you run this code it will use data from its cache. this one is the replacement of npm packages.

Above you can see there is used await without async, this is a new feature of deno, here we can use top-level await.

Here we are almost done, now type the following command to run above code

deno run --allow-net denoServer.ts

and you will get following screen

if you want to know How to create HTTP server with Node, check here

How to Start with NodeJs (Part -2)

Thanks…

Reference - https://deno.land

if have any doubt or query please reach out to me

Email-sachinkumar9663@gmail.com

Follow here for daily updates Instagram/jsdevlopers

Git- github.com/sachin9663

Linkedin- https://www.linkedin.com/in/sachinkumar9663

10 Things I Regret About Node. js — Ryan Dahl

What is Deno? Will it replace NodeJS

How to Start with NodeJs/ExpressJS