|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
5 / 5
5 = <30 min
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
Reviewed by 3+ independent developersExplore Ably's documentation for our pub/sub messaging platform
2.50 / 5
Getting started guides2 / 5
Information architecture and developer journey1 / 5
API reference documentation4 / 5
Readability, design and navigation1 / 5
Quality of code3 / 5
Breadth and quality of tutorials4 / 5
“Lightstreamer documentation is overall disappointing. First of all, it’s all over the place in terms of format: from GitHub READMEs to the most basic of HTML pages to PDFs. There’s even a slide deck. Resources are seldom cross-linked, which makes the docs hard to follow. The entire design of the website is from the last century. It’s aesthetically hideous, and the navigation experience is underwhelming. The only positive things are the API reference, which is quite comprehensive, and the GitHub tutorials, which are explained well.“
4.33 / 5
Getting started guides5 / 5
Information architecture and developer journey4 / 5
API reference documentation4 / 5
Readability, design and navigation4 / 5
Quality of code4 / 5
Breadth and quality of tutorials5 / 5
P: “Documentation is detailed, with many examples and tutorials from how to set up the parse server, connect clients to it, using different databases and hosting on different platforms”.
O: “The documentation is extensive and at the same time offers higher level explanations for the more detailed sections.”
W: “While the documentation offers a lot of information, examples and tutorials it could have been organized in a more clear manner and made more readable.”
Dashboard or dev console
Reviewed by 3+ independent developersSign up for free and explore Ably's pub/sub messaging platform
4 / 5
Ease of use5 / 5
Stats and reports5 / 5
Functionality2 / 5
“Lightstreamer provides a monitoring dashboard that shows various realtime metrics and stats related to the server-side, such as connections, sessions, or throughput. The event log is pretty useful, showing successful operations/events, warnings, and errors. It’s intuitive and straightforward to use, although the UI is dull and ugly. Unfortunately, there’s no dev console or portal with more extensive functionality to allow you to create and manage resources.“
4 / 5
Ease of use5 / 5
Stats and reports3 / 5
Functionality4 / 5
P: “The dashboard is easy to set up. You get a good overview of the stored data, so you can easily manage the database. Features such as webhooks, jobs, logs, API console and push notifications are easily accessible. Lack of performance metrics is a downside.”
O: “The dashboard has a clean and simple UI with management sections for the webhooks, jobs, logs, configs and API console. It also includes a browsing view.”
W: “The dashboard UI is easy to understand and self-explanatory. On the downside there is no informative metrics available but on the upside there is a lot of functionality and configurations options and the API console where you can send HTTP and GraphQL queries is a nice feature.”
Note: Only official SDKs were taken into account.Explore Ably's 25+ SDKs for our pub/sub messaging platform
10 production-ready client SDKs
Reviewed by 3+ independent developers
3.25 / 5
API consistency across SDKs4 / 5
Well structured4 / 5
Intuitive3 / 5
Simple2 / 5
4.50 / 5
API consistency across SDKs5 / 5
Well structured4 / 5
Intuitive4 / 5
Simple5 / 5
P: "The API across SDKs are mostly consistent, but support for Pub/sub is not available on all SDKs. Plenty of code examples of how to perform various operations”.
O: “Most SDKs are well structured, simple and consistent. Although some are missing an API reference.”
W: “The SDKs are intuitive and well structured for the most part. The SDKs could however have been more consistent.”
|"Hello world" code example|
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
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
Queues are supported only via the Lightstreamer JMS Extender, which connects to any third-party JMS server and makes JMS (Java Message Service) available on the Web. Any HTML page running inside a web browser and any Node.js application instantly become JMS clients, able to publish and subscribe on JMS topics and queues.
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
One could keep track of online clients by using the LiveQuery triggers to know whether or not a client is connected. But there is no built functionality for this.
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
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
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 is a system-wide data integrity guarantee that ensures each message is delivered to consumers exactly-once.Explore Ably' s idempotent publishing implementation
Idempodency enforcement exists, as an experimental feature that may not be appropriate for production.
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 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
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
Cloud functions are used in parse server to run single-prupose piece of code. But is up to you to host the parse server, where the cloud functions are invoked from. The pricing model is different, since you are hosting the parse server yourself, you can invoke the cloud function for as many times as you like. Services like AWS Lambda charges you for the number of requests made and the duration of those requests.
Which popular services & systems are Lightstreamer and Parse server integrated with?Explore Ably's library of integrations
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
Depends on server capacity (Enterprise and Enterprise Ultimate packages).
1 message/second for each subscription done by each client (community/free package).
Maximum message size
Maximum number of channels
Maximum number of concurrent connections
Depends on server capacity
Maximum message size
Maximum number of topics
Maximum number of connections
|Supported development platforms, languages, open protocols and cloud models|
Development platforms & operating systems
Which popular development platforms and operating systems do Lightstreamer and Parse server support via official SDKs?Explore the development platforms supported by Ably
Which popular programming languages do Lightstreamer and Parse server support via offical SDKs?Explore the programming languages supported by Ably
Which popular open protocols do Lightstreamer and Parse server support?Explore the open protocols supported by Ably
Which popular cloud models do Lightstreamer and Parse server support?
|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
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
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
Quality of Service
What QoS guarantees do Lightstreamer and Parse server provide natively?Explore Ably's availability and uptime guarantees for our pub/sub messaging platform
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
Lightstreamer authentication involves the usage of user & password credentials.
Which popular token-based authentication mechanisms do Lightstreamer and Parse server 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
Configurable rules and permissions
Which types of configurable rules and permissions do Lightstreamer and Parse server support?Explore Ably's configurable rules and permissions
Which types of message encryption do Lightstreamer and Parse server support?Explore Ably's message encryption mechanisms
Which formal certifications are Lightstreamer and Parse server compliant with?Explore Ably's security and compliance for our pub/sub messaging platform
|Pricing & Support|
What do the free packages offered by Lightstreamer and Parse server consist of?Explore Ably's free package for our pub/sub messaging platform
Lightstreamer’s free package (the community edition) provides a license for one server and unlimited clients. However, the message rate is throttled at one message per second, and some features are unavailable (such as clustering or TLS support).
How are the Lightstreamer and Parse server pricing models calculated?Explore Ably's pricing model for our pub/sub messaging platform
Lightstreamer has a complex and confusing pricing model. First, you must choose between the community edition (free) and the enterprise edition (paid). When you select enterprise, you must then opt between the Enterprise or the Enterprise Ultimate package (the latter includes all client APIs, superior message rates, and all features). On top of this, you must choose a licensing scheme, of which there are six options in total. Some examples: Perpetual Upfront per Server License, Monthly Pay-as-you-go Per Core-Hour License, Annual Upfront per Client Licence.
Once you choose a licensing scheme, you must also choose a license type, such as Demo, Evaluation, Production, or Hot-Standby.
There’s no transparency regarding cost estimation or concrete numbers (at least not on their website).
What benefits do the Lightstreamer and Parse server enterprise packages offer?Explore Ably's enterprise package for our pub/sub messaging platform
Lightstreamer has an Enterprise Ultimate package that includes all client APIs (different programming languages), provides unlimited messages without throttling, and grants access to all features.
Reviewed by 3+ independent developersExplore Ably's community support channel for our pub/sub messaging platform
2 / 5
Presence on multiple channels2 / 5
Size and activity2 / 5
“The Lightstreamer community is small. There is some activity going on on the Lightstreamer forums - usually people raising issues and asking for clarifications that arguably should have been clear from the documentation. Beyond forums, the Lightstreamer community is basically non-existent. There are only about 30 threads in total on Stack Overflow, and, although there are over 140 Lightstreamer repos on GitHub, they barely have a few stars or open issues and almost no pull requests.“
4 / 5
Presence on multiple channels4 / 5
Size and activity4 / 5
P: “Parse platform has 18k stars on github and 18k questions on Stack Overflow. It’s safe to say there is a solid community. There exist plenty of SDKs developed by the community.”
O: “Parse platform has an extensive community with a lot of activity on both Github and StackOverflow, it also has a presence on Twitter.”
W: “Parse has an active community with 18k stars on GitHub and there is also a substantial amount of questions about Parse Server on StackOverflow. There is a gitter for ParsePlatform but it doesn't seem quite as active.”
What types of support options and response times do Lightstreamer and Parse server offer?Explore Ably's support options for our pub/sub messaging platform
General support options
Email, support forums, phone, technical documentation.
Lightstreamer provides 8x5 and 24x7 technical support for enterprise and enterprise ultimate packages.
Disclaimer: The information presented for Lightstreamer was last updated on 7 December 2020 and on 28 February 2021 for Parse server. 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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