uWebSockets | Simple , secure & standards compliant web server | HTTP library

 by   uNetworking C++ Version: v20.44.0 License: Apache-2.0

kandi X-RAY | uWebSockets Summary

kandi X-RAY | uWebSockets Summary

uWebSockets is a C++ library typically used in Networking, HTTP applications. uWebSockets has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Simple, secure & standards compliant web server for the most demanding of applications

            kandi-support Support

              uWebSockets has a medium active ecosystem.
              It has 15500 star(s) with 1698 fork(s). There are 407 watchers for this library.
              There were 10 major release(s) in the last 12 months.
              There are 23 open issues and 413 have been closed. On average issues are closed in 11 days. There are 5 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of uWebSockets is v20.44.0

            kandi-Quality Quality

              uWebSockets has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              uWebSockets 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

              uWebSockets releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of uWebSockets
            Get all kandi verified functions for this library.

            uWebSockets Key Features

            No Key Features are available at this moment for uWebSockets.

            uWebSockets Examples and Code Snippets

            No Code Snippets are available at this moment for uWebSockets.

            Community Discussions


            Heroku Node.js and uWebsockets.js R10 Error, failed to bind port
            Asked 2022-Feb-03 at 14:31

            I have created a minimal app for testing deploying a node.js uWebsockets.js server on heroku with a dockerfile. Heroku logs shows that it fails with R10 (boot timeout) error, failed to bind to $PORT, although the logs before it show that it's listening at that port.




            Answered 2022-Feb-03 at 14:31

            I did quite a few changes but i think that it was a docker problem and changing my dockerfile to the below snippet made it work.

            Source https://stackoverflow.com/questions/70202989


            Can't move std::packaged_task into a lambda
            Asked 2021-Dec-29 at 22:51

            I want to defer the execution of a packaged task in a loop.



            Answered 2021-Dec-29 at 13:52

            By default a lambda's call operator is const-qualified.

            Inside the lambda's body the this pointer to the lambda is therefore also const-qualified and so is the member wrapper. std::packaged_task does not have a const-qualified operator(), so it cannot be called.

            You can make the lambda's operator() non-const-qualified by adding the mutable keyword:

            Source https://stackoverflow.com/questions/70519893


            Should std::async respect thrown errors?
            Asked 2021-Nov-20 at 09:16

            I'm trying to understand how exceptions are handled asynchronously -- I have a webserver that contains a lambda handler for processing requests (uWebsockets) and it keeps crashing. To simulate the scenario I used std::async



            Answered 2021-Nov-20 at 02:07

            Let's take this step by step. Let's start with the very definition of what std::async does. It:

            runs the function f asynchronously (potentially in a separate thread

            The word "potentially" is a distraction here, but the point is that a different execution thread is going to be involved here. For all practical reasons, the function getting std::async-ed can, and on modern C++ implementations, it will run in a new execution thread.

            The very reason for having different execution threads, in the first place, is that they are completely independent of their parent execution thread. Different execution threads must properly implement sequencing operations in order to mutually exchange information between themselves, in some form or fashion.

            Source https://stackoverflow.com/questions/70042457


            How to access IP address of HTTP requests using uWS?
            Asked 2021-Oct-25 at 08:32

            I am using uWebSockets to do a project. What I need to do is get the sender IP address out of incoming HTTP Requests. In the documentation I can see IP address can be taken out from the WebSockets. Do anybody have an idea to cast uWS to WebSockets to get the data or is there an other way to get it?



            Answered 2021-Oct-25 at 08:32

            According to the documentation, the remote address is an attribute of the response. Ergo:

            Source https://stackoverflow.com/questions/69704747


            Setting type of an outer variable using auto lambda parameters
            Asked 2021-Sep-28 at 11:29

            I am using a C++ web framework that heavily uses callback lambda functions. As you may guess, parameters to lambdas are usually specified as auto due to the must to declare very long declarations.

            Now I use decltype() operator to find the right type deduced by auto so that I can declare a vector of the same type. When the vector declaration happens inside the lambda, everything is fine.

            Where my problem starts is this vector needs to be declared in an outer scope using lambdas auto parameters' type information. Below is a simple example:



            Answered 2021-Sep-27 at 13:52

            You can "front-load" the type inference into a type alias.

            Source https://stackoverflow.com/questions/69347666


            Why is Google cloud platform with uWebSockets.js giving me error code 502
            Asked 2021-May-05 at 16:47

            I've coded a server in Node.js using uWebSockets.js and deployed it to Google Cloud App Engine.

            The server itself works fine when I run it on the local network but when I try to connect it through the gcloud URL it throws the error (to the client):



            Answered 2021-May-04 at 10:20

            As @DazWilkin mentioned, WebSockets can be used with App Engine Flexible environment and with Cloud Run.

            App Engine standard environment doesn't support this.

            Source https://stackoverflow.com/questions/67343698


            error: no matching function for call to 'uWS::TemplatedApp::ws(const char [3], )'
            Asked 2021-Apr-29 at 08:30

            I'm ussing uwebsockets to create ws server.




            Answered 2021-Apr-29 at 08:30

            It is because the compiler cannot convert 'brace-enclosed initializer list' to T&&. It can be solved by declaring the struct and converting it to Rvalue reference.

            Source https://stackoverflow.com/questions/67298358


            uwebsockets failed to start: libuv.c:-1: error: undefined reference to `uv_is_closing'
            Asked 2021-Apr-27 at 05:15

            My project has linked uwebsockets. linked libs:



            Answered 2021-Apr-27 at 05:15

            Is there any linking sequence problem? I see that usockets links behind libuv, maybe we can try swap the sequence: to link usockets first.

            You are using static linkage, and usockets depends on libuv, so swap the sequence will fix the problem.

            Related questions:

            Why does the order in which libraries are linked sometimes cause errors in GCC?

            Source https://stackoverflow.com/questions/67275914


            CMake build error: undefined reference to 'deflateEnd'
            Asked 2021-Apr-26 at 06:30

            I'm trying to use zlib in my project. The CMakeLists.txt is as follows:



            Answered 2021-Apr-25 at 13:49

            The thing is, that you have to set the path to the library file as the target_link_libraries argument.

            According to the documentation, if you want to link the library, each argument of target_link_libraries can be:

            • A library target name
            • A full path to a library file (e.g. /usr/lib/foo.so)
            • A plain library name (e.g. foo)

            In your case I suggest you to add the complete path to the library.

            I don't have all the code of your project, so I suggest you consider this minimal example:

            Source https://stackoverflow.com/questions/67252131


            Android WebRTC DataChannel is always null and ICE candidates are not sent
            Asked 2020-Nov-17 at 23:53

            I'm trying to create an Android app that uses WebRTC data channels for data exchange. The data that I want to send is basic strings. Admittedly, this is my first time looking at WebRTC, and so I am a bit fuzzy on the details. My problem is that whenever I try to create a data channel, it is always null, and ICE candidate requests do not seem to be exchanged with the signalling server. I started from this example that creates a connection to exchange video between two devices and modified it to not exchange video but instead create a data channel.

            I looked through a lot of other answers but the vast majority have to do with WebRTC in the browser, and data channel examples are rare to begin with. I also looked through the google chromium source code implementation of WebRTC in c++ to see if anything could be learned but had no luck.

            My code is as follows




            Answered 2020-Nov-17 at 23:53

            Answering my own question, not entirely but will post what worked for me. Ultimately I could not figure out what was wrong with the code above, I suspect somewhere I was not doing something right with the initialization or requests.

            Some of the files are from above and have not been modified, but I'll post them anyways. Also, I had used this article as a starting point.


            Source https://stackoverflow.com/questions/64766744

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


            No vulnerabilities reported

            Install uWebSockets

            You can download it from GitHub.


            uNetworking AB is a Swedish consulting & contracting company dealing with anything related to µWebSockets; development, support and customer success. Don't hesitate sending a mail if you're building something large, in need of advice or having other business inquiries in mind. We'll figure out what's best for both parties and make sure you're not stepping into one of the many common pitfalls. Special thanks to BitMEX, Bitfinex, Google, Coinbase, Bitwyre and deepstreamHub for allowing the project itself to thrive on GitHub since 2016 - this project would not be possible without these beautiful companies.
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