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  1. Stackups
  2. Application & Data
  3. Platform as a Service
  4. Realtime Backend API
  5. CometD vs Radar

CometD vs Radar

OverviewComparisonAlternatives

Overview

Radar
Radar
Stacks3
Followers17
Votes0
GitHub Stars220
Forks43
CometD
CometD
Stacks22
Followers34
Votes0

Radar vs CometD: What are the differences?

What is Radar? High level API and backend for writing web apps that use push messaging. Radar is built on top of engine.io, the next-generation backend for socket.io. It uses Redis for backend storage, though the assumption is that this is only for storing currently active data.

What is CometD? WebSocket & HTTP, highly scalable and clustered web messaging framework. It is a web server to push data to a browser, without the browser explicitly requesting it. It is an umbrella term, encompassing multiple techniques for achieving this interaction.

Radar and CometD belong to "Realtime Backend / API" category of the tech stack.

Some of the features offered by Radar are:

  • More than just pub/sub: a resource-based API for presence, messaging and push notifications via a Javascript client library
  • Written in Javascript/Node.js, and uses engine.io (the new, low-level complement to socket.io)
  • Backend to multiple front-facing servers

On the other hand, CometD provides the following key features:

  • Javascript Client
  • Publish/Subscribe Messaging
  • Service Channels

Radar is an open source tool with 210 GitHub stars and 36 GitHub forks. Here's a link to Radar's open source repository on GitHub.

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Detailed Comparison

Radar
Radar
CometD
CometD

Radar is built on top of engine.io, the next-generation backend for socket.io. It uses Redis for backend storage, though the assumption is that this is only for storing currently active data.

It is a web server to push data to a browser, without the browser explicitly requesting it. It is an umbrella term, encompassing multiple techniques for achieving this interaction.

More than just pub/sub: a resource-based API for presence, messaging and push notifications via a Javascript client library;Written in Javascript/Node.js, and uses engine.io (the new, low-level complement to socket.io);Backend to multiple front-facing servers;REST API for working with web apps that don't use Node (presently, rework in progress)
Javascript Client; Publish/Subscribe Messaging; Service Channels; Private Message Delivery; Lazy Messages; Message Batching; Listeners, Data Filters and Extensions; Security Policy
Statistics
GitHub Stars
220
GitHub Stars
-
GitHub Forks
43
GitHub Forks
-
Stacks
3
Stacks
22
Followers
17
Followers
34
Votes
0
Votes
0
Integrations
No integrations available
JavaScript
JavaScript
Node.js
Node.js
AngularJS
AngularJS
Dojo
Dojo
jQuery
jQuery

What are some alternatives to Radar, CometD?

NGINX

NGINX

nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.

Firebase

Firebase

Firebase is a cloud service designed to power real-time, collaborative applications. Simply add the Firebase library to your application to gain access to a shared data structure; any changes you make to that data are automatically synchronized with the Firebase cloud and with other clients within milliseconds.

Apache HTTP Server

Apache HTTP Server

The Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Originally designed as a replacement for the NCSA HTTP Server, it has grown to be the most popular web server on the Internet.

Socket.IO

Socket.IO

It enables real-time bidirectional event-based communication. It works on every platform, browser or device, focusing equally on reliability and speed.

Unicorn

Unicorn

Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix/Unix-like kernels. Slow clients should only be served by placing a reverse proxy capable of fully buffering both the the request and response in between Unicorn and slow clients.

PubNub

PubNub

PubNub makes it easy for you to add real-time capabilities to your apps, without worrying about the infrastructure. Build apps that allow your users to engage in real-time across mobile, browser, desktop and server.

Microsoft IIS

Microsoft IIS

Internet Information Services (IIS) for Windows Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.

Pusher

Pusher

Pusher is the category leader in delightful APIs for app developers building communication and collaboration features.

Apache Tomcat

Apache Tomcat

Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.

Passenger

Passenger

Phusion Passenger is a web server and application server, designed to be fast, robust and lightweight. It takes a lot of complexity out of deploying web apps, adds powerful enterprise-grade features that are useful in production, and makes administration much easier and less complex.

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