Kaazing WebSocket Gateway vs Push Technology

	Kaazing WebSocket Gateway	Push Technology
Time to "hello world" Reviewed by 3+ independent developers Ratings were given based on the average amount of time it takes to sign up to a new account and publish the first message.	2 / 5 5 = <30 min 4 = 30 min - 1 h 3 = 1-2 h 2 = 2-4 h 1 = 4+ h View code example	4 / 5 5 = <30 min 4 = 30 min - 1 h 3 = 1-2 h 2 = 2-4 h 1 = 4+ h View code example
Demos / Tutorials A selection of online demos and tutorials so you can test and see the code in action. Explore Ably's tutorials for our pub/sub messaging platform	Kaazing JavaScript JMS tutorial Kaazing Stock Portfolio demo Kaazing Gateway Docker Tutorials	How to build a realtime chat app with Diffusion Cloud Drawing board demo JSON Delta streaming demo
Documentation Reviewed by 3+ independent developers Explore Ably's documentation for our pub/sub messaging platform	2.50 / 5 Getting started guides / 5 Information architecture and developer journey / 5 API reference documentation / 5 Readability, design and navigation / 5 Quality of code / 5 Breadth and quality of tutorials / 5 “The documentation is overall disappointing. The API reference, some comprehensive FAQs, and some decent writing for SDK-specific guides are noteworthy highlights. However, the rest is not great. There is no navigation sidebar; all the various sections of the docs are individual articles that are listed on a menu page. Furthermore, the sections are not organized in a logical manner; it’s unclear where to start, and often hard to understand how the topics connect. There are only a few GitHub tutorials, with some brief steps, but certainly not enough details. Overall, you get the feeling the documentation fails to deliver relevant bits of information, and getting started with Kaazing was far from easy.”	3.50 / 5 Getting started guides / 5 Information architecture and developer journey / 5 API reference documentation / 5 Readability, design and navigation / 5 Quality of code / 5 Breadth and quality of tutorials / 5 “Push Technology documentation for its Diffusion product consists of several components. First, we have a quick start guide, which is pretty decent. It’s structured to provide step-by-step guidance on how to set up Diffusion and use the APIs and the SDKs. The screen is split so that you can look at documentation and code snippets in parallel - a nice touch. Then, there’s an online manual, which is significantly more detailed, with code snippets throughout. Unfortunately, there aren’t any details in the guide about the quality of service or how to architect for scalability. There’s a detailed API reference for each SDK and comprehensive release notes. The design could be improved, as it’s a bit dry, and so could the navigation experience - some links return 404, and the various sections of the documentation aren’t cross-linked. There are just a few demos available, with no source code and only several tutorials.“
Dashboard or dev console Reviewed by 3+ independent developers Sign up for free and explore Ably's pub/sub messaging platform	1 / 5 Ease of use / 5 Stats and reports / 5 Functionality / 5 "Kaazing WebSocket Gateway does not provide a developer console or dashboard."	4.67 / 5 Ease of use / 5 Stats and reports / 5 Functionality / 5 “The Service Dashboard is feature-rich, and it allows you to easily create, manage, and remove resources, configure settings, and view detailed stats, such as the number of messages, the CPU load, or the topic count. There’s also a nice section in the Dashboard that allows you to test your pipeline. The user experience is mostly intuitive, and the functionality is explained well (there are many tooltips throughout). However, the UI design could perhaps benefit from a refresh, as it’s a bit outdated.“
SDKs Note: Only official SDKs were taken into account. Explore Ably's 25+ SDKs for our pub/sub messaging platform	5 client SDKs Including: iOS JavaScript .NET	7 SDKs Including: JavaScript Android .NET
API structure Reviewed by 3+ independent developers	4 / 5 API consistency across SDKs / 5 Well structured / 5 Intuitive / 5 Simple / 5 “Kaazing offers SDKs in several different programming languages, and for different operating systems. The naming conventions make the APIs reasonably intuitive and simple to understand, and the extensive API references help a lot. The APIs are mostly consistent at a class level, which makes sense, since the WebSocket ones are basically modeled around the standard WebSocket API. Note that the client SDKs also provide additional protocol capabilities, such as AMQP and JMS, which is quite useful.”	3.25 / 5 API consistency across SDKs / 5 Well structured / 5 Intuitive / 5 Simple / 5 “Diffusion APIs are consistent across SDKs in the sense that operations are performed in the same order. However, the APIs are quite complex - there are tens of classes and methods, with some different naming conventions across some of the SDKs, such as JavaScript, Java, or C, which is counter-intuitive. The API references are structured and presented differently, which is not great; at least they are detailed and thorough. There are examples for all SDKs on GitHub, which is useful.”

Kaazing WebSocket Gateway

Push Technology

Getting started and developer experience

Time to "hello world"

Reviewed by 3+ independent developers

Ratings were given based on the average amount of time it takes to sign up to a new account and publish the first message.

2 / 5

5 = <30 min
4 = 30 min - 1 h
3 = 1-2 h
2 = 2-4 h
1 = 4+ h

View code example

4 / 5

5 = <30 min
4 = 30 min - 1 h
3 = 1-2 h
2 = 2-4 h
1 = 4+ h

View code example

Demos / Tutorials

A selection of online demos and tutorials so you can test and see the code in action.

Explore Ably's tutorials for our pub/sub messaging platform

Documentation

Reviewed by 3+ independent developers

Explore Ably's documentation for our pub/sub messaging platform

2.50 / 5

Getting started guides / 5

Information architecture and developer journey / 5

API reference documentation / 5

Readability, design and navigation / 5

Quality of code / 5

Breadth and quality of tutorials / 5

“The documentation is overall disappointing. The API reference, some comprehensive FAQs, and some decent writing for SDK-specific guides are noteworthy highlights. However, the rest is not great. There is no navigation sidebar; all the various sections of the docs are individual articles that are listed on a menu page. Furthermore, the sections are not organized in a logical manner; it’s unclear where to start, and often hard to understand how the topics connect. There are only a few GitHub tutorials, with some brief steps, but certainly not enough details. Overall, you get the feeling the documentation fails to deliver relevant bits of information, and getting started with Kaazing was far from easy.”

3.50 / 5

Getting started guides / 5

Information architecture and developer journey / 5

API reference documentation / 5

Readability, design and navigation / 5

Quality of code / 5

Breadth and quality of tutorials / 5

“Push Technology documentation for its Diffusion product consists of several components. First, we have a quick start guide, which is pretty decent. It’s structured to provide step-by-step guidance on how to set up Diffusion and use the APIs and the SDKs. The screen is split so that you can look at documentation and code snippets in parallel - a nice touch. Then, there’s an online manual, which is significantly more detailed, with code snippets throughout. Unfortunately, there aren’t any details in the guide about the quality of service or how to architect for scalability. There’s a detailed API reference for each SDK and comprehensive release notes. The design could be improved, as it’s a bit dry, and so could the navigation experience - some links return 404, and the various sections of the documentation aren’t cross-linked. There are just a few demos available, with no source code and only several tutorials.“

Dashboard or dev console

Reviewed by 3+ independent developers

1 / 5

Ease of use / 5

Stats and reports / 5

Functionality / 5

"Kaazing WebSocket Gateway does not provide a developer console or dashboard."

4.67 / 5

Ease of use / 5

Stats and reports / 5

Functionality / 5

“The Service Dashboard is feature-rich, and it allows you to easily create, manage, and remove resources, configure settings, and view detailed stats, such as the number of messages, the CPU load, or the topic count. There’s also a nice section in the Dashboard that allows you to test your pipeline. The user experience is mostly intuitive, and the functionality is explained well (there are many tooltips throughout). However, the UI design could perhaps benefit from a refresh, as it’s a bit outdated.“

SDKs

Note: Only official SDKs were taken into account.

Explore Ably's 25+ SDKs for our pub/sub messaging platform

5 client SDKs

Including:

iOS
JavaScript
.NET

7 SDKs

Including:

JavaScript
Android
.NET

API structure

Reviewed by 3+ independent developers

4 / 5

API consistency across SDKs / 5

Well structured / 5

Intuitive / 5

Simple / 5

“Kaazing offers SDKs in several different programming languages, and for different operating systems. The naming conventions make the APIs reasonably intuitive and simple to understand, and the extensive API references help a lot. The APIs are mostly consistent at a class level, which makes sense, since the WebSocket ones are basically modeled around the standard WebSocket API. Note that the client SDKs also provide additional protocol capabilities, such as AMQP and JMS, which is quite useful.”

3.25 / 5

API consistency across SDKs / 5

Well structured / 5

Intuitive / 5

Simple / 5

“Diffusion APIs are consistent across SDKs in the sense that operations are performed in the same order. However, the APIs are quite complex - there are tens of classes and methods, with some different naming conventions across some of the SDKs, such as JavaScript, Java, or C, which is counter-intuitive. The API references are structured and presented differently, which is not great; at least they are detailed and thorough. There are examples for all SDKs on GitHub, which is useful.”

Kaazing WebSocket Gateway	Push Technology
// Create client var client = UniversalClientDef('amqp'); // Establish connection var connectionInfo = { url: 'wss://demos.kaazing.com/amqp', // URL to Kaazing's public sandbox for WebSocket testing username: 'guest', password: 'guest' }; // Manage connection var connectionInfo = { url: 'wss://demos.kaazing.com/amqp', // URL to Kaazing's public sandbox for WebSocket testing username: 'guest', password: 'guest' }; // Subscribe var subscription = {}; var onSubscribe = function(sub) { subscription = sub; log('Subscribed'); ... }; var onConnect = function(conn) { log('Connected'); conn.subscribe( 'getting-started', // Topic to send messages 'getting-started', // Topic to receive messages onMessage, // Callback function to process received messages false, // noLocal flag - 'false' allows you to receive your own messages onSubscribe // Callback function once subscribed ); }; // Receive messages var onMessage = function(msg) { console.log('Received: ' + msg.message); }; // Publish subscription.sendMessage({ message: 'Hello, world!' });	// Publish session.topics.add('my-topic',diffusion.topics.TopicType.JSON); var value = { foo : 'bar' }; var result = session.topicUpdate.set('my-topic', diffusion.datatypes.json(), value); // Subscribe session.addStream('my-topic', diffusion.datatypes.json()).on('value', function(topic, specification, newValue, oldValue) { console.log(`New value for ${path}: ${newValue.get()}`); session.select('my-topic'); });

Kaazing WebSocket Gateway

Push Technology

"Hello world" code example

// Create client
var client = UniversalClientDef('amqp');
// Establish connection
var connectionInfo = {
  url: 'wss://demos.kaazing.com/amqp', // URL to Kaazing's public sandbox for WebSocket testing
  username: 'guest',
  password: 'guest'
};
// Manage connection
var connectionInfo = {
  url: 'wss://demos.kaazing.com/amqp', // URL to Kaazing's public sandbox for WebSocket testing
  username: 'guest',
  password: 'guest'
};
// Subscribe
var subscription = {};

var onSubscribe = function(sub) {
  subscription = sub;
  log('Subscribed');
  ...
};

var onConnect = function(conn) {
  log('Connected');
  conn.subscribe(
    'getting-started',    // Topic to send messages
    'getting-started',    // Topic to receive messages
    onMessage,            // Callback function to process received messages
    false,                // noLocal flag - 'false' allows you to receive your own messages
    onSubscribe           // Callback function once subscribed
  );
};
// Receive messages
var onMessage = function(msg) {
  console.log('Received: ' + msg.message);
};
// Publish
subscription.sendMessage({ message: 'Hello, world!' });

// Publish
session.topics.add('my-topic',diffusion.topics.TopicType.JSON);
var value = { foo : 'bar' };
var result = session.topicUpdate.set('my-topic', diffusion.datatypes.json(), value);

// Subscribe
session.addStream('my-topic', diffusion.datatypes.json()).on('value', function(topic, specification, newValue, oldValue) {
  console.log(`New value for ${path}: ${newValue.get()}`);
  session.select('my-topic');
});

	Kaazing WebSocket Gateway	Push Technology
Realtime features
Pub/Sub messaging Pub/Sub is a design pattern that lets any number of publishers (producers) push messages to channels (also known as topics). Multiple subscribers (consumers) can subscribe to a channel to consume published messages. Explore Ably's pub/sub messaging implementation
Message queues A message queue is a form of asynchronous service-to-service communication. Messages are stored on a queue until they are processed. Note that each message is only consumed by one subscriber (consumer). Explore Ably's message queues implementation
Presence Presence enables you to track the online and offline status of devices and end-users in real time and to store their state. Essential for chat apps and multiplayer games. Explore Ably's presence implementation
Message history Message history provides a means to retrieve previously published messages. For this to be possible, message data must be stored (persisted) somewhere. Explore Ably's message history implementation	Limited You can configure Kaazing WebSocket Gateway to hold recent messages for a topic in a last value cache. However, you are required to use a JMS-compliant message broker, such as RabbitMQ.
Connection state recovery (stream resume) In the case of unreliable network conditions, clients may suddenly disconnect.Connection state recovery ensures that when they reconnect, the data stream resumes exactly where it left off. Explore Ably' s connection state recovery implementation		Limited Push Technology operates a recovery buffer of sent messages but if a message has been lost or is no longer in the recovery buffer the server will abort the reconnection.
Guaranteed message ordering Ordering ensures that messages are delivered to consumers in the same order that producers publish them. Explore Ably' s guaranteed message ordering implementation
Exactly-once semantics Exactly-once is a system-wide data integrity guarantee that ensures each message is delivered to consumers exactly-once. Explore Ably' s idempotent publishing implementation
Message delta compression Message delta compression enables you to only send the changes from the previous message to subscribers each time there’s an update, instead of the entire message. Useful for use cases where there is a significant degree of similarity between successive messages. Explore Ably' s message delta compression implementation
Native push notifications Native push notifications can be used to deliver messages even when clients are offline. Useful for geolocation updates or news alerts. Explore Ably's push notifications implementation
Webhooks Webhooks provide a mechanism to get messages and other types of events (such as clients entering or leaving channels) pushed to your servers over HTTP. Explore Ably's webhooks implementation
Serverless functions A serverless function is essentially an isolated, single-purpose piece of code that is only executed when it’ triggered by an event. For example, you can use serverless functions to send a welcome message to clients when they become present on chat channels. Note that serverless functions are usually fully managed by cloud vendors. Explore Ably's serverless functions implementation
Built-in integrations Which popular services & systems are Kaazing WebSocket Gateway and Push Technology integrated with? Explore Ably's library of integrations	Webhooks Custom IFTTT Zapier Serverless functions AWS Lambda Cloudflare Workers Google Cloud Functions Microsoft Azure Functions Streaming Apache Kafka Apache Pulsar Amazon Kinesis Amazon SQS RabbitMQ AMQP	Webhooks Custom IFTTT Zapier Serverless functions AWS Lambda Cloudflare Workers Google Cloud Functions Microsoft Azure Functions Streaming Apache Kafka Apache Pulsar Amazon Kinesis Amazon SQS RabbitMQ AMQP
Known limits and constraints Find out practical limits, such as the maximum message size, or the maximum number of concurrent connections. Explore the practical limits of the Ably pub/sub messaging platform	Publisher throughput Unknown Maximum message size Unknown Maximum number of topics Unknown Maximum number of concurrent connections Unknown	Publisher throughput Unknown Maximum message size Unknown Maximum number of topics Unlimited (only applies to Enterprise customers). Maximum number of connections Unknown

Supported development platforms, languages, open protocols and cloud models
Development platforms & operating systems Which popular development platforms and operating systems do Kaazing WebSocket Gateway and Push Technology support via official SDKs? Explore the development platforms supported by Ably	Android Java / JVM iOS macOS iPadOS tvOS watchOS Mono .NET	Android Java / JVM iOS macOS iPadOS tvOS watchOS Mono .NET
Languages Which popular programming languages do Kaazing WebSocket Gateway and Push Technology support via offical SDKs? Explore the programming languages supported by Ably	JavaScript Node.js TypeScript Java Objective-C Swift Go PHP Python Ruby Flutter Clojure Scala	JavaScript Node.js TypeScript Java Objective-C Swift Go PHP Python Ruby Flutter Clojure Scala
Open protocols Which popular open protocols do Kaazing WebSocket Gateway and Push Technology support? Explore the open protocols supported by Ably	WebSocket HTTP AMQP MQTT STOMP SSE Webhooks	WebSocket HTTP AMQP MQTT STOMP SSE Webhooks
Cloud models Which popular cloud models do Kaazing WebSocket Gateway and Push Technology support?	Self-hosted Cloud-managed Serverless Globally-distributed	Self-hosted Cloud-managed Serverless Globally-distributed

Global and reliable edge service
Edge messaging network with latency-based routing Latency-based routing ensures that clients are always routed to the nearest datacenter and point of presence. Explore Ably's routing mechanism that mitigates network and DNS issues	N/A
Multi-region data replication (message durability) Multi-region data replication (storage) protects against single points of failure and ensures message data durability. Learn how Ably ensures message durability	N/A	Limited Only available for Enterprise customers.
Uptime SLAs Here’s what the most common SLAs amount to in terms of downtime over a calendar year: 99.999% SLA = 5m 15s downtime per year 99.99% SLA = 52m 35s downtime per year 99.95% SLA = 4h 22m 58s downtime per year 99.9% SLA = 8h 45m 56s downtime per year 99% SLA = 3d 15h 39m 29s downtime per year Source: https://uptime.is/	N/A	99.9%
Quality of Service What QoS guarantees do Kaazing WebSocket Gateway and Push Technology provide natively? Explore Ably's availability and uptime guarantees for our pub/sub messaging platform	Multi-region data replication (storage) Exactly-once semantics Guaranteed message ordering Connection state recovery (stream resume)	Multi-region data replication (storage) Exactly-once semantics Guaranteed message ordering Connection state recovery (stream resume)

Security
API key authentication The simplest way to authenticate. Involves using private API keys that you can usually create and edit via a dashboard. Recommended to be used server-side, as private API keys shouldn’t be shared with untrusted parties. Explore Ably's implementation of API key authentication
Token-based authentication Which popular token-based authentication mechanisms do Kaazing WebSocket Gateway and Push Technology support? Note that token-based authentication is usually the recommended strategy on the client-side as it provides more fine-grained access control and limits the risk of credentials being compromised. Explore Ably's implementation of token-based authentication	Ephemeral tokens JWTs	Ephemeral tokens JWTs
Configurable rules and permissions Which types of configurable rules and permissions do Kaazing WebSocket Gateway and Push Technology support? Explore Ably's configurable rules and permissions	API keys rules and permissions Operation rules and permissions Admin rights	API keys rules and permissions Operation rules and permissions Admin rights
Message encryption Which types of message encryption do Kaazing WebSocket Gateway and Push Technology support? Explore Ably's message encryption mechanisms	Encrypted at rest Encrypted in transit Message payload encryption	Encrypted at rest Encrypted in transit Message payload encryption
Formal certifications Which formal certifications are Kaazing WebSocket Gateway and Push Technology compliant with? Explore Ably's security and compliance for our pub/sub messaging platform	SOC 2 TYPE I SOC 2 Type II HIPAA EU GDPR	SOC 2 TYPE I SOC 2 Type II HIPAA EU GDPR

Pricing & Support
Free package What do the free packages offered by Kaazing WebSocket Gateway and Push Technology consist of? Explore Ably's free package for our pub/sub messaging platform	N/A	The free package includes 3 million monthly messages, 100 peak connections, unlimited topics, access to all major features and adapters, and basic support.
Pricing model How are the Kaazing WebSocket Gateway and Push Technology pricing models calculated? Explore Ably's pricing model for our pub/sub messaging platform	N/A	The basic pricing for the Business package starts at $49 per month. In addition, there are charges for the number of messages - $ 0.99 per million messages and for the number of connections - $ 0.01 per connection. It’s unclear how pricing is calculated for the Enterprise package.
Enterprise package What benefits do the Kaazing WebSocket Gateway and Push Technology enterprise packages offer? Explore Ably's enterprise package for our pub/sub messaging platform	N/A	The Enterprise package benefits include enterprise scale and performance, cross-region replication, configurable cluster size, bespoke performance tuning, bespoke packages for all sizes.
Community Reviewed by 3+ independent developers Explore Ably's community support channel for our pub/sub messaging platform	1.50 / 5 Presence on multiple channels / 5 Size and activity / 5 “Kaazing is present on a few platforms, such as StackOverflow, Gitter, and GitHub. However, all discussions and GitHub issues seem to date back from 2018. All in all, there’s nothing to indicate Kaazing has an active and thriving community. There only seem to be a few projects made by the community, and almost no community-made content (blogs, tutorials).”	1 / 5 Presence on multiple channels / 5 Size and activity / 5 “Push Technology has a community forum, but there’s a very small number of posts and an even smaller number of followers (a maximum of 11 followers per forum category). Similarly, there are maybe 20 threads on Stack Overflow, and basically no community activity on GitHub. No presence on Gitter or Discourse. It’s essentially a non-existent community.”
Support What types of support options and response times do Kaazing WebSocket Gateway and Push Technology offer? Explore Ably's support options for our pub/sub messaging platform	There is only one level of support - Platinum Level, available 24/7. Support channels Chat, email, phone, self-service web portal, documentation Response time Within 1 hour for urgent / high severity issues Within 1 business day for normal severity issues Within 5 business days for low priority issues	General support options Email, web support, documentation, developer hub, phone (only for Platinum package), screenshare (Gold and Platinum packages). Enterprise support The Platinum package is the equivalent of enterprise support. It includes early access to beta features and a dedicated account manager. Response time 2 hours for Platinum package 3 hour minimum for Live Events package 24 hours for Gold package Best effort response times for the Basic package

Pricing & Support

Free package

What do the free packages offered by Kaazing WebSocket Gateway and Push Technology consist of?

Explore Ably's free package for our pub/sub messaging platform

N/A

The free package includes 3 million monthly messages, 100 peak connections, unlimited topics, access to all major features and adapters, and basic support.

Pricing model

How are the Kaazing WebSocket Gateway and Push Technology pricing models calculated?

Explore Ably's pricing model for our pub/sub messaging platform

N/A

The basic pricing for the Business package starts at $49 per month.

In addition, there are charges for the number of messages - $ 0.99 per million messages and for the number of connections - $ 0.01 per connection.

It’s unclear how pricing is calculated for the Enterprise package.

Enterprise package

What benefits do the Kaazing WebSocket Gateway and Push Technology enterprise packages offer?

Explore Ably's enterprise package for our pub/sub messaging platform

N/A

The Enterprise package benefits include enterprise scale and performance, cross-region replication, configurable cluster size, bespoke performance tuning, bespoke packages for all sizes.

Community

Reviewed by 3+ independent developers

Explore Ably's community support channel for our pub/sub messaging platform

1.50 / 5

Presence on multiple channels / 5

Size and activity / 5

“Kaazing is present on a few platforms, such as StackOverflow, Gitter, and GitHub. However, all discussions and GitHub issues seem to date back from 2018. All in all, there’s nothing to indicate Kaazing has an active and thriving community. There only seem to be a few projects made by the community, and almost no community-made content (blogs, tutorials).”

1 / 5

Presence on multiple channels / 5

Size and activity / 5

“Push Technology has a community forum, but there’s a very small number of posts and an even smaller number of followers (a maximum of 11 followers per forum category). Similarly, there are maybe 20 threads on Stack Overflow, and basically no community activity on GitHub. No presence on Gitter or Discourse. It’s essentially a non-existent community.”

Support

What types of support options and response times do Kaazing WebSocket Gateway and Push Technology offer?

Explore Ably's support options for our pub/sub messaging platform

There is only one level of support - Platinum Level, available 24/7.

Support channels

Chat, email, phone, self-service web portal, documentation

Response time

Within 1 hour for urgent / high severity issues

Within 1 business day for normal severity issues

Within 5 business days for low priority issues

General support options

Email, web support, documentation, developer hub, phone (only for Platinum package), screenshare (Gold and Platinum packages).

Enterprise support

The Platinum package is the equivalent of enterprise support. It includes early access to beta features and a dedicated account manager.

Response time

2 hours for Platinum package

3 hour minimum for Live Events package

24 hours for Gold package

Best effort response times for the Basic package

Disclaimer: The information presented for Kaazing WebSocket Gateway was last updated on 31 March 2021 and on 15 December 2020 for Push Technology. It is possible that some details may now be out of date. If you think that’s the case, please let us know so we can update them. In any case, you should not rely solely on the information presented here and must check with each provider before deciding to integrate or buy any of these two solutions.

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