playframework | Play Framework | Reactive Programming library

 by   playframework Scala Version: 2.8.19 License: Apache-2.0

kandi X-RAY | playframework Summary

kandi X-RAY | playframework Summary

playframework is a Scala library typically used in Programming Style, Reactive Programming, Framework applications. playframework has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Play Framework

            kandi-support Support

              playframework has a medium active ecosystem.
              It has 12398 star(s) with 4105 fork(s). There are 656 watchers for this library.
              It had no major release in the last 12 months.
              There are 405 open issues and 3267 have been closed. On average issues are closed in 375 days. There are 44 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of playframework is 2.8.19

            kandi-Quality Quality

              playframework has 0 bugs and 0 code smells.

            kandi-Security Security

              playframework has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              playframework code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              playframework is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              playframework releases are available to install and integrate.
              It has 109215 lines of code, 9702 functions and 1563 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            playframework Key Features

            No Key Features are available at this moment for playframework.

            playframework Examples and Code Snippets

            No Code Snippets are available at this moment for playframework.

            Community Discussions


            What does Action mean in play framework (Scala)?
            Asked 2022-Mar-01 at 13:45

            I am new to Play Framework and was trying to understand SimpleRouter class. In the Play documentation, I see a simple example as:



            Answered 2022-Mar-01 at 13:45

            An Action according to the Play documentation here is

            basically a (play.api.mvc.Request => play.api.mvc.Result) function that handles a request and generates a result to be sent to the client.

            In other words, an Action a full implementation of the server side of the http request that is able to take a play.api.mvc.Request and do some work and return a play.api.mvc.Result

            In your example the Action is one that does not use anything from the request and returns a static HTTP 200 response with the content hello

            Edit: From the comment here it looks like you are having an issue with the Action in the code sample not being resolved. The reason for this is that that is not actually a reference to the play.api.mvc.Action but a helper method to construct Actions.

            This helper method is defined in play.api.mbc.AbstractController which you can extend to make use of it.

            An example of this would be something like:



            Play application stops immediately when running with Intellij configuration
            Asked 2022-Jan-19 at 20:18

            When running sbt new playframework/play-scala-seed.g8 compiling and running from terminal everything works perfectly well. But when importing the project to IntelliJ, Adding a "Play 2 App" configuration, and running it, the program runs perfectly but stops immediately. Also, The play logo is shown twice.



            Answered 2022-Jan-11 at 17:41

            for me "Enable auto-reload" option in the configuration fixed the problem.



            Play framework in Java - errors in "hello world" example
            Asked 2022-Jan-11 at 12:09

            I'm trying to start working with play framework. I tried using the "hello world" example for Java, but after running the "sbt run" command I get errors. I get a lot of lines in the CMD, with the last few lines being:



            Answered 2022-Jan-11 at 12:09

            Play 2.8 supports Java 8-11, I set my environmental variable "JAVA_HOME" to the Java 8 JDK and the command sbt run worked.



            Play! FrameWork: I'm having a problem uploading an image to my server
            Asked 2021-Oct-25 at 17:13

            i hope someone can help me. I use following Code snippet to upload an image to my server (This is copied from here:



            Answered 2021-Oct-25 at 17:13

            According to this thread, Play may have problems with certain SBT versions and vice versa.

            This workaround might work for you.

            This issue was also patched for Play 2.8.8 so try updating to latest version.



            Scala Play - Some unresolved dependencies have extra attributes
            Asked 2021-Oct-05 at 20:23

            Context: I'm trying to run the starter sample web application in the Play documentation for Scala: I confirmed that I have the listed requirements and I've followed the instructions in the README which appear to state you run sbt run in the project directory. I'm raising a ton of errors which seem to indicate I have missing dependencies but I have no idea.

            Questions: Can someone please assist in helping me interpret and resolve these errors? Thank you.



            Answered 2021-Oct-05 at 20:23

            You need to run sbt in the parent directory, not in the project directory, i.e. in C:\...\play-samples-play-scala-starter-example\.

            To give more context, SBT is a recursive build tool and the project directory contains metadata to build the main project but it's not aimed to be built directly.



            Play Framework 1.x Functional Test with @AllowFeature Controller Method
            Asked 2021-Sep-07 at 13:59

            I do want to write some functional tests for our project. Techstack: Play Framework 1.5, Java 16, Junit 3.

            I found following documentation: test - 1.5.x security - 1.5.x

            So the Controller looks something like this.



            Answered 2021-Sep-07 at 13:59

            I was able to figure this out.

            I need to log into the application and then the play FunctionalTest.class takes care of the cookie.

            1. Add @NoAuthenticityto the login method



            What is the (default) Cache size limit in Play Framework when using Ehcache and/or Caffeine?
            Asked 2021-Aug-16 at 09:12

            Recently I switched my Play Framework-based project from Ehcache to Caffeine, because the Play documentation for version 2.8 says "For in-process caching Caffeine is typically the best choice."

            Now, I implemented a little "test" to see how many items can be added to the cache before some items are evicted. The test simply adds more and more items to the cache (without an explicit expiration) in a loop, checking whether all previosuly inserted items still are available after each insert operation, until at least one previously inserted item is detected to be missing.

            With Ehcache I found that the limit apparently is 10,000 items. After adding that many items to the cache, some "old" items start to disappear from the cache. So my conclusion is that Ehcache, by default, has a fixed size limit of 10,000 items. With Caffeine, on the other hand, there seems to be no limit at all! I kept the test running for a very long time, but even after inserting ~1 million items, still no previously inserted items had been evicted. At that point I stopped the test.

            So, does Caffeine, unlike Ehcache, not have a size limit by default? Will it keep on accumulating items until, eventually, my application crashes with "out of memory" error, or is there some logic in Caffeine that evicts items in "low memory" situations? Is it advisable to configure an explicit cache size limit when using Caffeine? I would think so. But then, why Play doesn't do it by default?

            Unfortuantely, the Cache documentation of Play Framework doesn't make clear at all which default settings Play uses with Ehcache and/or Caffeine. Also, a list of available Cache options in the Play configuration (and the respecitive default values) would be really helpful...




            Answered 2021-Aug-16 at 09:12

            This appears to be the defaults set by Play's integrations.

            For ehcache, they have a configuration file ehcache-default.xml with a maximum of 10,000 entries and an expiration time of 120 seconds.

            For caffeine, they have a configuration file reference.conf that specifies no constraints. A maximum-size may be set to limit the number of entries.

            The Caffeine library does not have any implicit (arbitrary) defaults, as that might be surprising and most often be incorrect. If a size limit is specified, then the cache is allowed to grow slightly above the threshold in order to support concurrent writes (else all serializing against an exclusive lock), but won't suffer runaway growth due to applying back pressure.



            Error when trying to run Scala Play examples
            Asked 2021-Jul-14 at 16:10

            I'm trying to learn Play for scala and though they provide some nice example projects, I can't get any of them to run. Specifically the rest api example Supposedly you can just download the sample and run sbt run. The project builds for me just fine, but when I navigate to the url, localhost:9000 for the project I get error:



            Answered 2021-Jul-14 at 16:10

            The example project you started from doesn't define a route for / but only some routes under /v1/posts (you can check this in the routes file).

            Maybe it's better to start with the sample project called "play-scala-starter-example" (which does define a route on /):



            Using scala format, how to exclude view files from playframework
            Asked 2021-Jul-11 at 01:56

            My .scalafmt.conf file has the following:



            Answered 2021-Jul-11 at 01:56

            Since scala format defaults to specific file formats like .scala, .sbt and .sc it actually won't format .scala.html files.

            This ended up being a VS code auto formatting issue for .html files.

            I disabled it via:



            PlayFramework - Creating Scala seed template with sbt
            Asked 2021-Jul-04 at 21:14

            I am attempting to create the PlayFramework Scala seed project.

            So far I've used sbt new playframework/play-scala-seed.g8 command and it has created the necessary files within my root directory movie-app.

            From this point, PlayFramework says to run sbt run, so I tried that, but I get the following error:



            Answered 2021-Jul-02 at 23:35

            $> sbt new playframework/play-scala-seed.g8

            This template generates a Play Scala project. Give it a name when asked. Skip rest by pressing enter.

            name [play-scala-seed]: movie-app

            $> cd movie-app

            $> sbt run


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


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