Open source application written in Java (therefore platform independent) that utilizes the Jabber/XMPP protocol, therefore you can have multiple clients being able to connect to the server (along with being able to set the "priority", assuming other client has the functionality) for where new messages/notifications would be sent / transferred to via FastPath support. Review collected by and hosted on G2.com.

The client itself seemed to have a bit of limited functionality in comparison to other clients (such as Adium) in terms of logging (locally). I would have simply used Adium solely when connecting to the Jabber server, other than it has *limited* fastpath support -- you could definitely transfer a live chat over to another tech (such as yourself, where it'd go to Adium based on the priority) after accepting via Spark. Transferring chats over to Adium was definitely easier to communicate and also have local logging support. Review collected by and hosted on G2.com.

With very little experience, setting up routes, models, and views is simple and easy. Spark teaches you a little bit about lambdas without you even realizing it. Review collected by and hosted on G2.com.

Templates are not as integrated as some other frameworks, which means a little setup is required but gives you more flexibility. This has to do with the lightweight philosophy I think. User base isn't that big, so you might need to wait a while for responses on Stack Overflow, etc. Review collected by and hosted on G2.com.

Spark brings back the joy of Java web development: it just can't get easier and simpler than that. All you need is to add a single dependency and you're good to go. It supports any template technology you might want to use, documentation is great, and there are plenty of useful tutorials around. Review collected by and hosted on G2.com.

Spark doesn't seem to be production ready and most people won't use it in a production environment, as we can see in the 2015 Spark survey. It delivers a remarkably minimalistic Java experience for creating web applications, and one of the downsides that comes along is that you do lose some functionality, so Spark isn't ideal for large web applications. Review collected by and hosted on G2.com.

I like that Spark is an easy way to put a service up and running very quickly, plus it's easy to read and to maintain. The greatest thing is that is on Java8 which makes it more easy to read. It is so easy to learn cause it's simply that, SIMPLE. i think is bringing the best of the ruby on rails framework on Java which makes the whole process really smooth making it like a dream creating a web service so easily. Review collected by and hosted on G2.com.

The routes part could do some work though, i know that it's a new library but it has an amazing potencial.

The routs need some work cause according to https://github.com/perwendel/spark/issues/369 the route handling is very poor and it does not matches the right one but the order as you declare the routes.

That's another issue, the issues, they are a lot and some seem to be unresolved or unanswered. seem like an eternity to get a reply of the administrator. it could use a bigger team to develop this tool Review collected by and hosted on G2.com.

Very user friendly and conveniently located on my desktop. I like I can get support without calling. Review collected by and hosted on G2.com.

People have to sign up and only so many can respond Review collected by and hosted on G2.com.

The software was good enough in the business Review collected by and hosted on G2.com.

The lagging of the software and that it kicked us out due to inactivity Review collected by and hosted on G2.com.

Very simple to understand even for Java beginners. Allows you to quickly build microservices. Can be either run standalone on in a servlet container like Tomcat. Has a pretty small codebase that can be inspected if anyone wants to know how things run in the background. Review collected by and hosted on G2.com.

Release cycle is very slow. It may take days or weeks for an issue to be reviewed. Although it has received thousands of stars at github, community is tiny and it doesn't seem that a lot of people actually use it for production apps. Review collected by and hosted on G2.com.

The "portability" - the whole project became a single jar and run by itself it's magical. The framework has a lot of possibilities to write the code, it makes it easy to integrate with new applications. Review collected by and hosted on G2.com.

It's a little bit raw yet, if compared to spring-boot, for example - but it can be a good thing depending the project needs. The name 'spark' can be mistaken with the Apache Spark project, making it difficult to find community documentation. Review collected by and hosted on G2.com.

Easier to implement in comparison to other methods

Better documentations Review collected by and hosted on G2.com.

Some bugs and error that make the process of configuration slow Review collected by and hosted on G2.com.

Spark is simple to configure and use. With few lines you can set up a complete rest server, without any concerns with XML files or containers like Tomcat.

I developed my application very fast and it's running pretty well in production. Review collected by and hosted on G2.com.

With simplicity in mind, some advanced configurations of rest and server balancing are not present or is very difficult to configure, but it has almost no importance. Review collected by and hosted on G2.com.