websocket-api | Jakarta WebSocket - | Websocket library

 by   eclipse-ee4j Java Version: Current License: Non-SPDX

kandi X-RAY | websocket-api Summary

kandi X-RAY | websocket-api Summary

websocket-api is a Java library typically used in Networking, Websocket applications. websocket-api has no bugs, it has no vulnerabilities, it has build file available and it has low support. However websocket-api has a Non-SPDX License. You can download it from GitHub, Maven.


            kandi-support Support

              websocket-api has a low active ecosystem.
              It has 28 star(s) with 22 fork(s). There are 21 watchers for this library.
              It had no major release in the last 6 months.
              There are 41 open issues and 244 have been closed. On average issues are closed in 1796 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of websocket-api is current.

            kandi-Quality Quality

              websocket-api has no bugs reported.

            kandi-Security Security

              websocket-api has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              websocket-api has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              websocket-api releases are not available. You will need to build from source code and install.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed websocket-api and discovered the below as its top functions. This is intended to give you an instant insight into websocket-api implemented functionality, and help decide if they suit your requirements.
            • Returns the WebSocketContainer
            • String representation
            Get all kandi verified functions for this library.

            websocket-api Key Features

            No Key Features are available at this moment for websocket-api.

            websocket-api Examples and Code Snippets

            No Code Snippets are available at this moment for websocket-api.

            Community Discussions


            Getting 404 while trying to access endpoints using Jersey 3 and Tomcat 10
            Asked 2021-Jun-14 at 13:32

            Been trying for days to fix this problem. Just trying to recreate a simple "Hello World" REST api with Jersey 3 and Tomcat 10 in maven. After creating the WAR file of the project I can access the index.jsp (created by default when I created the project) but when I try to access the "/helloworld" endpoint I get error 404. Here's my code:




            Answered 2021-Jun-14 at 13:32

            Jersey requires an appropriate container module to deploy the REST application. You added jersey-container-jdk-http, which works with a JDK Http Server (cf. documentation).

            What you need instead is the jersey-container-servlet module (cf. documentation), which works in every Servlet 3.x environment. Therefore you need to add this dependency:

            Source https://stackoverflow.com/questions/67970675


            How to always get the latest version of an specific dependency in maven 3.x?
            Asked 2021-Apr-10 at 10:39

            I have a maven project with large pom file, I want one of my dependencies to be always the latest version which is deployed to our local antifactory server.

            the name of this dependency is "WebInfra" and I use maven 3.x so the "LATEST" keyword is not working for me.

            I'll put the pom file here and I'll be happy to find a solution for this problem. I need other dependencies to stay in their fixed version and only this dependency should upgraded to the latest version each time I call mvn clean deploy on it. I see "Versions Maven Plugin" and set its includes and excludes but not working for me : I have webinfra-1.jar and then I deployed webinfra-2.0-SNAPSHOT into artifactory server but when I run mvn versions:use-latest-versions nothing happens. I expect my pom change into version 2.0-snapshot. What's going wrong here ?



            Answered 2021-Apr-10 at 10:39

            You need to have two separate runs of Maven:

            1. Update the version with the versions maven plugin on command line.
            2. Run something like mvn clean verify to build the project.

            You cannot change the version while building the project.

            BTW: You configured Java 5. Are you really sure you want this?

            Source https://stackoverflow.com/questions/67031433


            Extract websocket connection Id and other details from websocket in AWS Api Gateway with HTTP integration
            Asked 2021-Apr-06 at 11:25

            I have an http endpoint https://websocketsample.free.beeceptor.com and an API Gateway in AWS for Websockets with routes for $connect, $disconnect and $default, all of them integrated with HTTP integration to a POST https://websocketsample.free.beeceptor.com so that I can capture the http request.

            When I test it with wscat



            Answered 2021-Apr-03 at 02:52

            You have most likely forgotten to deploy your API (Routes -> Actions -> Deploy API). WebSocket APIs still use the old console which does not have auto deploy.

            It works when I try it

            Source https://stackoverflow.com/questions/66688751


            Jetty AnnotationParser scanned from multiple locations warning
            Asked 2021-Mar-04 at 17:14

            I have a project build with Gradle, it's actually a Vaadin project, with a servlet where I use Jetty. At the startup (i.e gradle run) I have a lot of different warning message from AnnotationParser about duplication of classes. I copy only one because the log is quite verbose:



            Answered 2021-Feb-26 at 17:13

            Having the same class name in multiple locations on your classpath is a bad idea.

            This is the most common form of unstable operation on Java there is!

            The classloaders in Java have no guarantee of load order behavior if the same class is present in multiple locations within the classloader.

            In one run you might accidentally load the classes in the order you intend, and have it run properly, then at a future date you run the same program and the load order is different, now you are running with a different class version and you have unexpected behavior.

            The only way to fix this is to clean up your classloader and ensure that you only have 1 version of the class you intend to use.

            This is what Jetty is telling you.

            As for this specific one, javax.websocket-api and javax.websocket-client-api, you want to exclude javax.websocket-client-api at the gradle level, as all of the websocket client classes are also present in the javax.websocket-api.

            The javax.websocket-client-api jar is only intended for projects that only use the javax.websocket Client, without a javax.websocket Server.

            Following the suggestion of joakim-erdfelt I have modified my gradle.build and this prevent the problem:

            Source https://stackoverflow.com/questions/66331524


            Serverless Framework API Gateway Websockets Binary Data
            Asked 2021-Feb-14 at 17:54

            Anyone know how to set a websocket's content handling strategy to binary in the serverless framework?

            I have a websocket defined as follows:



            Answered 2021-Feb-14 at 17:54

            I "solved" this by base64 encoding my binary data and using the $default handler, which allows arbitrary datatypes

            Source https://stackoverflow.com/questions/66096833


            Fail to start a newly generated project
            Asked 2021-Feb-10 at 15:25

            I created a brand new project based on instruction on the website :



            Answered 2021-Feb-10 at 15:25

            Could you try with a clean ~/.m2/repository/ (just move yours away before trying)?

            Source https://stackoverflow.com/questions/66130527


            Trying to understand lambda function that is part of the logic of api gateway websockets connection
            Asked 2020-Nov-17 at 14:12

            TLDR: How do i send a short payload from a mqtt request to aws iot to aws lambda that has a open connection via apigateway to an electron app running locally in linux.

            I have a esp8266 with the following code as the init.js This code succesfully sends it's message to aws iot, with a rule set to trigger a lambda called sendmessage. Now this sendmessage lambda is connected via websockets to a Electon app locally on my linux machine. I am able to send messages from the Electron app via websockets to api gateway wss url. I followed this example here which sets up all the websockets with api gateway and aws lambdas (one being the sendmessage lambda).



            Answered 2020-Nov-17 at 04:59

            It seems like you're setting 1 lambda to handle 2 trigger sources, one is IoT service, the other is API Gateway Websocket. Since you use 1 lambda, you have to handle cases when the request is came from sources:

            1. While event.requestContext is available when the request is triggered from API Gateway, it is not available when the request is triggered from IoT service (check the IoT event object here https://docs.aws.amazon.com/lambda/latest/dg/services-iotevents.html). So the error you faced (which is Cannot read property 'domainName' of undefined") is about that. You should turn off the lambda trigger from IoT service or handle the request when it comes from IoT Service.
            2. I'm not sure about the forbidden error but it is more like you sent unstructured message to API gateway WS, it should be connection.send(JSON.stringify({ action: "sendmessage", data: "hello world" })); instead of connection.send("hello world");

            Edited based on post update:

            I know ws is there because if I console it it returns a big object with a bunch of functions

            Lambda function is not really a server, it is an instance Node environment (that's why it is called FUNCTION), Lambda function doesn't work as the way you think normal Nodejs app does, its container (node environment) usually is halted (or freeze) whenever its job is done so you cannot keep its container alive like a normal server. That's the reason while you can console log the Websocket object, you cannot keep it alive, the NodeJS container was already halted whenever you return/response.

            Since you cannot use the Websocket object to open WS connection in Lambda, Amazon offers a way to do that via API Gateway. The way we work with API Gateway Websocket is different than the normal server does too, it would be something like:

            • User -> request to API Gateway to connect to websocket -> call Lambda 1 (onconnect function)
            • User -> request to API Gateway to send message over Websocket -> call Lambda 2 (sendmessage function)
            • User -> request to API Gateway to close connection -> call Lambda 3 (ondisconnect function)

            3 settings above is configured in API Gateway (https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-websocket-api-integrations.html), logic of 3 functions onconnect, sendmessage, ondisconnect can be handled in 1 lambda or 3 lambda functions depending on the way we design, I check your 3 lambda functions and it looks okay.

            I see that you want to use IoT but I'm not sure why. You should test your Websocket API first without anything related to IoT. It would be better if you can tell what you want to achieve here since IoT works more like a publish/subscribe/messaging channel and I don't think it's necessary to use it here.

            Source https://stackoverflow.com/questions/64759924


            Express node js webssockets is recieving messages from websocket server but not being able to send them
            Asked 2020-Nov-17 at 14:10

            I have websockets setup with aws api gateway, I also have an ec2 instance running with node and express and ws websockets, I am able to send a message with wscat to the apigateway wss url and it shows up in the ec2 instance, but if I send a message from the ec2 instance it doesnt show up back in the wscat. I followed this tut to setup the apigateway https://aws.amazon.com/blogs/compute/announcing-websocket-apis-in-amazon-api-gateway/

            Here is the ec2 instance code. I am not quite sure what might be wrong with it



            Answered 2020-Nov-17 at 14:10

            I got an aswer from the ws github issues, so I am posting it for anyone else

            Source https://stackoverflow.com/questions/64868510


            Group_by and group_concat in shell script
            Asked 2020-Nov-04 at 07:59

            My intent is to identify the duplicate jars in classpath. So I have used following commands to do some preprocessing.



            Answered 2020-Nov-04 at 07:40

            There might be easier methods but this is what I can do now ... probably can be narrowed down to a single line with some tweaking

            Source https://stackoverflow.com/questions/64675781


            AWS API Gateway WebSockets [POST]@connections Returning 404 NotFound
            Asked 2020-Oct-28 at 18:22

            I connect a client (or a couple of clients) to the websockets endpoint in API Gateway.

            Then, I try to post a message back to the client using these guidelines: https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-how-to-call-websocket-api-connections.html



            Answered 2020-Oct-28 at 18:22

            Turns out this line

            endpoint := fmt.Sprintf("https://%s/%s/@connections/%s", domain, stage, connectionID)

            needs to turn into this

            endpoint := fmt.Sprintf("https://%s/%s/", domain, stage)

            Source https://stackoverflow.com/questions/64562442

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


            No vulnerabilities reported

            Install websocket-api

            You can download it from GitHub, Maven.
            You can use websocket-api like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the websocket-api component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


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