emitter | High performance , distributed and low latency publish | Pub Sub library

 by   emitter-io Go Version: v3.0 License: AGPL-3.0

kandi X-RAY | emitter Summary

kandi X-RAY | emitter Summary

emitter is a Go library typically used in Messaging, Pub Sub applications. emitter has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has medium support. You can download it from GitHub.

Emitter is a distributed, scalable and fault-tolerant publish-subscribe platform built with MQTT protocol and featuring message storage, security, monitoring and more:. Emitter can be used for online gaming and mobile apps by satisfying the requirements for low latency, binary messaging and high throughput. It can also be used for the real-time web application such as dashboards or visual analytics or chat systems. Moreover, Emitter is perfect for the internet of things and allows sensors to be controlled and data gathered and analyzed.
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            kandi-support Support

              emitter has a medium active ecosystem.
              It has 3551 star(s) with 340 fork(s). There are 109 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 13 open issues and 188 have been closed. On average issues are closed in 143 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of emitter is v3.0

            kandi-Quality Quality

              emitter has no bugs reported.

            kandi-Security Security

              emitter has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              emitter is licensed under the AGPL-3.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

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

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            emitter Key Features

            No Key Features are available at this moment for emitter.

            emitter Examples and Code Snippets

            simple dom event emitter
            javascriptdot img1Lines of Code : 1dot img1License : Non-SPDX
            copy iconCopy
            function O(e,t,n,r){e.detachEvent&&!isOpera?r&&e.detachEvent(r,t):e.removeEventListener(n,t,!1)}  

            Community Discussions

            QUESTION

            How do I set fire to a UIView in Swift?
            Asked 2021-Jun-15 at 11:32

            How do I produce an animation that simulates the burning effect of fire consuming an UIView from top to bottom in Swift?

            I found Fireworks, an app that allows users to tweak and try out different settings of CAEmitterLayer with instant results. The effects are great for applying to a whole screen but how would I use it for my purpose - where the UIView must disappear as the fire consumes it from one end to the other?

            Is there some tutorial on consuming UIViews with fire using the particle emitter anywhere? I know that I’m supposed to show some code but anything I put here would be irrelevant. I’ve also exhausted my search engine looking for something similar. That’s how I found the Fireworks app actually.

            This seems to be a use case that shouldn't be uncommon.

            ...

            ANSWER

            Answered 2021-Jun-14 at 14:24

            I was once in your shoe before and came across this Open source library called particle animations.

            I would NOT recommend using the library itself since it's deprecated. But I would recommend referring to its source code to get an idea of how to use CAEmitterLayer and CAEmitterCell to make the looks of a Fire!

            As you could see from its readme, it has direct examples of Fire. It also states that even Apple and Facebook uses CAEmitterLayer and CAEmitterCell to produce the effect of a fire.

            Feel free to ask for more questions.

            Source https://stackoverflow.com/questions/67971598

            QUESTION

            React Native Expo: Network error on android
            Asked 2021-Jun-15 at 09:51

            I'm using axios in my app. When I make a post request for the very first time after opening the app, it is failing with the following error. From second time onwards, it works without any issue.

            ...

            ANSWER

            Answered 2021-Jan-18 at 05:56
            Solution 1

            Make Sure "http://" is in your URL Address .

            1. change from localhost to your ip
            2. add http://

            http://192.168.43.49:3000/user/

            Solution 2

            I faced same issue, it happens in Android, but works well in IOS. I guess this issue about Flipper Network.

            For while, I commented

            initializeFlipper(this, getReactNativeHost().getReactInstanceManager())

            in this file /android/app/src/main/java/com/{your_project}/MainApplication.java

            Solution 3

            Whoever is still struggling with this issue. it's happening because of Flipper network plugin. I disabled it and things work just fine.

            My workaround to make this work is commenting out line number 43

            Source https://stackoverflow.com/questions/65697750

            QUESTION

            Memory leak when emitting an event after menu click in Electron app
            Asked 2021-Jun-15 at 06:52

            I'm currently building a desktop application with Electron and React.

            Right now I'm adding a menu feature which toggles the dark mode of the app. In my React app, I'm using a hook which toggles the dark mode. I want to trigger that React hook right after the user has clicked on the menu item.

            This is what I've done so far:

            menu.ts:

            ...

            ANSWER

            Answered 2021-Jun-13 at 08:37

            Try setting up the toggle-dark-mode event handler once when you start your Electron app.

            Your code doesn't need to be in the ready event even.

            Source https://stackoverflow.com/questions/67956184

            QUESTION

            event emitter emit in sequence or in parallel, and behaviour when they are async
            Asked 2021-Jun-13 at 19:58

            Consider the following code:

            ...

            ANSWER

            Answered 2021-Jun-13 at 18:47

            Internally, the EvenEmitter hold an array of listeners for each event type. When you emit an event type, the EvenEmitter just goes through it's array of listeners and execute it. Therefore, the listeners are executed in the order it was added by addListener or on method.

            To answer your questions there are two parts: a) it executes in the order you added the listener and b) it depends if the listeners are async or not. If your listeners are synchronous, then you can expect that behavior. If your listeners are async, you can't expect that. Even if your execute your async synchronously, they will not necessarily resolve at the same time because it's the nature of being async.

            Source https://stackoverflow.com/questions/67961514

            QUESTION

            Can't post through endpoint in jest
            Asked 2021-Jun-13 at 10:29

            I am working on the little exercise and writing tests for it. All my tests using GET with endpoint ('/api/blogs') are working but when it comes to POST data it gives a weird object:

            ...

            ANSWER

            Answered 2021-Jun-13 at 10:29

            I don't think you need to use new Blog in your test, it will create an instance of Mongoose document (the weird object in your log). Create a Mongoose document is the job of the API. You only need to send the Javascript object.

            Source https://stackoverflow.com/questions/67956985

            QUESTION

            Are subscribers notified after all events or per event?
            Asked 2021-Jun-13 at 08:05

            I am new into RxJava and I was under the impression that for each event each subscriber is being notified. So if we have N subscribers and a stream of X events the onNext for each of the N subscribers would be called. But when I run the following code:

            ...

            ANSWER

            Answered 2021-Jun-13 at 08:05

            RxJava sequences are synchronous by default thus the subscribe call above will run your emission code right there. To achieve the interleaving, you need a way to tell the source when both consumers are ready to receive. This can be done several ways:

            Source https://stackoverflow.com/questions/67937772

            QUESTION

            Prime ng table not updating on first change
            Asked 2021-Jun-08 at 11:21

            I have a prime-ng table of shops, where I can remove and add shops to a list.

            The behavior: When a shop is added, the ChildComponent emits an event to ParentComponent which then adds the shop to the list and updates the input observable of the ChildComponent so that the shop no longer appears in the table.

            The issue: The above behavior works fine except when the table is filtered, then when adding a shop the table is not updated even though I can see that the table array has been updated correctly in the component. However, when another shop is added (in the same filtered table) it works fine, and then both shops are removed from the table.

            The table is part of a pure component (child):

            ...

            ANSWER

            Answered 2021-Jun-08 at 11:21

            I followed the answer in this question and it worked for me, but I still don't fully understand why it didn't work on first addition then it worked on the next ones previously.

            Source https://stackoverflow.com/questions/67874273

            QUESTION

            Do javascript promises work using event emitters?
            Asked 2021-Jun-06 at 23:14

            I was studying the concept of promises in javascript and the states:pending/resolved/rejected. But I couldn't find much info out there on how the pending state changes to resolved/rejected. Does it happens through event emitters and listeners? If not how does that work?

            ...

            ANSWER

            Answered 2021-Jun-06 at 23:03

            I won't do a better job explaining than the article I used to look into this a little while back but I think the term you're hunting for is executor.

            The function passed to new Promise is called the executor. When new Promise is created, the executor runs automatically. It contains the producing code which should eventually produce the result. In terms of the analogy above: the executor is the “singer”.

            Its arguments resolve and reject are callbacks provided by JavaScript itself. Our code is only inside the executor.

            When the executor obtains the result, be it soon or late, doesn’t matter, it should call one of these callbacks:

            resolve(value) — if the job is finished successfully, with result value. reject(error) — if an error has occurred, error is the error object. So to summarize: the executor runs automatically and attempts to perform a job. When it is finished with the attempt, it calls resolve if it was successful or reject if there was an error.

            Source https://stackoverflow.com/questions/67864319

            QUESTION

            Promise chaining unhandled promise
            Asked 2021-Jun-05 at 03:56

            I'm learning Node.js right now and practicing using EventEmitter along with promises.

            The successfulOrder function runs through both promises: verifyStockP and verifyCardP both promises are super simple.

            I noticed that when I purposely make one of the two promises reject, the program works as expected. The catch error code runs as expected.

            If I force both promises to fail, I get the following error message: '(node:2316) UnhandledPromiseRejectionWarning: card invalid;'

            How would I make it so we don't get this error if both the verifyStockP and verifyCardP promises reject?

            Thank you all in advance!

            If you guys have any tips on something else I should fix on the code I'd be super grateful to hear it!

            ...

            ANSWER

            Answered 2021-Jun-05 at 03:56

            The issue is that if the first Promise rejects, the second Promise is never part of the Promise chain that has the catch

            Two possible solutions ...

            One way to handle this is separately add a "dummy" catch to the second promise

            Source https://stackoverflow.com/questions/67845801

            QUESTION

            RxJava + Websocket - How to add Observable to Websocket listener?
            Asked 2021-Jun-04 at 20:09

            I have a ViewModel that is observing a RxJava Observable in my MainRepo class. I am trying to get my WebsocketListener in the MainRepo class to emit events, but I'm unsure how to do so.

            MainRepo class:

            ...

            ANSWER

            Answered 2021-Jun-03 at 07:16

            Try to use PublishSubject, seems like it was created for cases like yours.

            Source https://stackoverflow.com/questions/67782867

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

            Vulnerabilities

            No vulnerabilities reported

            Install emitter

            You can download it from GitHub.

            Support

            If you need any help with Emitter Server or any of our client SDKs, please join us at either our gitter chat where most of our team hangs out at or drop us an e-mail at info@emitter.io. Please submit any Emitter bugs, issues, and feature requests to emitter-io>emitter. If there are any security issues, please email info@emitter.io instead of posting an open issue in Github.
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