EventEmitter2 | A nodejs event emitter implementation with namespaces | Reactive Programming library

by EventEmitter2 JavaScript Version: v6.4.4 License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | EventEmitter2 Summary

EventEmitter2 is a JavaScript library typically used in Programming Style, Reactive Programming, Nodejs applications. EventEmitter2 has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub, Maven.

A nodejs event emitter implementation with namespaces, wildcards, TTL, works in the browser

Support

Quality

Security

License

Reuse

Support

EventEmitter2 has a medium active ecosystem.

It has 2659 star(s) with 247 fork(s). There are 41 watchers for this library.

It had no major release in the last 12 months.

There are 24 open issues and 130 have been closed. On average issues are closed in 334 days. There are 11 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of EventEmitter2 is v6.4.4

Quality

EventEmitter2 has 0 bugs and 0 code smells.

Security

EventEmitter2 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

EventEmitter2 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

EventEmitter2 is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

EventEmitter2 releases are available to install and integrate.

Deployable package is available in Maven.

Installation instructions are not available. Examples and code snippets are available.

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EventEmitter2 Key Features

No Key Features are available at this moment for EventEmitter2.

EventEmitter2 Examples and Code Snippets

No Code Snippets are available at this moment for EventEmitter2.

Community Discussions

Trending Discussions on EventEmitter2

Nestjs event emitter alternative with callback

Handle EventEmitterModule wildcards - NestJS

Unable to catch event in NestJs

Angular: how to force EventEmitter to flush in test

How to run NUXT (npm run dev) with HTTPS in localhost?

How to run node install on docker with mulitple package.json

Why do I receive 'message too big' on .publish() [error 1009]?

Node.js EventEmitter2; How to remove listeners added with onAny

expo does not contain an export named WebBrowser

Extend class in third party definition file

QUESTION

Nestjs event emitter alternative with callback

Asked 2021-May-27 at 15:02

I am experimenting and learning about nestjs but I am not able to find a proper solution to the following scenario:

Module Users

Module Books

Module Dashboard

The dashboard is a graphql that resolves his needs to calling the service of the books and the service of the users of those books.

I only know two ways of solving the order of a book and at the same time update the user information.

1- Using a mutation on the graphql dashboard that also calls an event that will be listen by the corresponding service that will update this new order, here is the example of this use case: https://github.com/nestjs/nest/tree/master/sample/30-event-emitter

2- Using Dependency Injection considering the dashboard to have a dependency of the corresponding services of users and books and simply update everything that is needed.

The problem:

Solution 1 the event does not provide a callback or response, it acts as the emition of an event that I cannot get feedback afterwards, more like an action or command than a function.

Solution 2 the dashboard knows too much, I don't need to provide the whole module as DI, to later call just one method to update the user information after an order had happen.

What I need, and I don't find anyware. An Event that I can listen after it gets executed... in other words similar to the following:

...

ANSWER

Answered 2021-May-27 at 15:02

I'm not familiar with Nest, but EventEmitter2 which uses Nest has emitAsync method, so it should work:

Source https://stackoverflow.com/questions/67714289

QUESTION

Handle EventEmitterModule wildcards - NestJS

Asked 2021-May-11 at 06:42

I don't know how to handle the following emitter:

...

ANSWER

Answered 2021-Apr-30 at 11:49

I think that's not possible. You have to create two different listeners:

Source https://stackoverflow.com/questions/67330882

QUESTION

Unable to catch event in NestJs

Asked 2021-Jan-06 at 17:56

I'm doing some test with NestJs events. Here is the code (very basic)

...

ANSWER

Answered 2021-Jan-06 at 17:56

Looking at the source code it appears that Controllers are not scanned when connecting subscribers.

Only Providers are scanned which means you will need to create a dedicated Injectable Service to have your @OnEvent method decorated

Source https://stackoverflow.com/questions/65597668

QUESTION

Angular: how to force EventEmitter to flush in test

Asked 2020-Jan-30 at 15:25

I have following Angular test:

...

ANSWER

Answered 2020-Jan-30 at 15:25

Place eventEmitter2.emit('B'); after eventEmitter2.subscribe(v => b = v);

Source https://stackoverflow.com/questions/59988937

QUESTION

How to run NUXT (npm run dev) with HTTPS in localhost?

Asked 2020-Jan-13 at 16:59

EDIT: Updated the text in general to keep it shorter and more concise.

I am trying to configure HTTPS when I run npm run dev so I can test MediaStream and alike locally (for which browsers require me to provide HTTPS).

I am trying to configure it through nuxt.config.js but without any success.

Here is my nuxt.config.js file:

...

ANSWER

Answered 2019-Sep-11 at 19:16

HTTPS on local dev - NUXT style

Solution is described in NUXT documentation:

https://nuxtjs.org/api/configuration-server/#example-using-https-configuration

This may be achieved with:

Go to project main dir;
Create private and public key;

Source https://stackoverflow.com/questions/56966137

QUESTION

How to run node install on docker with mulitple package.json

Asked 2019-May-14 at 05:54

I have an old app that I am trying to port to Docker. I am not sure how to get Docker to copy both Package.json and run them.

Old as in:

...

ANSWER

Answered 2019-May-14 at 05:54

You can run shell commands with Docker RUN. The dockerfile should look something similar to this depending on your directory structures

Source https://stackoverflow.com/questions/56123672

QUESTION

Why do I receive 'message too big' on .publish() [error 1009]?

Asked 2019-Mar-17 at 05:04

I'm able to establish a firm connection over rosbridge_server with roslibjs, however, whenever I call .publish() the Websocket disconnects and returns

I've tried calling JSON.stringify() to shorten the message size. I've ensure the message is of the right format.

...

ANSWER

Answered 2019-Feb-12 at 18:13

I encountered the same problem using roslibpy, I was running basic examples of publisher and the connection was closed immediately after publishing the message with error:

Source https://stackoverflow.com/questions/53965987

QUESTION

Node.js EventEmitter2; How to remove listeners added with onAny

Asked 2018-Jun-15 at 15:07

How can I remove all event listeners that listen on any event?

I've tried removeAllListeners() but it's not working. Am I missing something?

...

ANSWER

Answered 2018-Jun-15 at 15:07

It seems as though the API for this library is somewhat confusing. To deregister onAny() listeners, you use offAny().

Drilling down into the source reveals that removeAllListeners() doesn't really touch the _all array that tracks the listeners for any event. It just runs init() and configure() on the listener again none of which touches that _all array.

Also note your issue on the GitHub page here: removeAllListeners does not remove listeners added with onAny #235

If you want to actually remove them all do something like this:

Source https://stackoverflow.com/questions/50876836

QUESTION

expo does not contain an export named WebBrowser

Asked 2018-Jun-15 at 10:45

I have the basic example of using Expo.WebBrowser and it gives the error:

import { WebBrowser } from 'expo'

'expo' does not contain an export named 'WebBrowser'

Dependencies:

"buffer": "^5.1.0", "color-hash": "^1.0.3", "debug": "^3.1.0", "eventemitter2": "^5.0.1", "expo": "^27.0.2", "mobx": "^4.3.0", "mobx-react": "^5.1.2", "moment": "^2.22.1", "mqtt": "^2.18.0", "react": "^16.2.0", "react-app-rewire-mobx": "^1.0.8", "react-dom": "^16.2.0", "react-native": "^0.52.2", "react-native-elements": "^0.19.1", "react-native-render-html": "^3.10.0", "react-native-side-menu": "^1.1.3", "react-native-storage": "^0.2.2", "react-native-swipeout": "^2.3.3", "react-native-web": "^0.3.2", "react-native-web-webview": "^0.2.5", "react-router-native": "^4.2.0", "react-scripts": "1.1.0", "svgs": "^3.1.2"

...

ANSWER

Answered 2018-Jun-15 at 10:44

Looks like in a browser environment WebBrowser is not available.

Using 'react-native-web' causes import { WebBrowser } from 'expo' to fail.

Source https://stackoverflow.com/questions/50873826

QUESTION

Extend class in third party definition file

Asked 2017-Aug-08 at 21:24

I provide a typescript definition file for a non-ts library I've written. My library extends EventEmitter2 as a "native" event system so I'm trying to determine how to define that:

...

ANSWER

Answered 2017-Aug-08 at 21:24

Rather than using a triple-slash directive, you can import the type declarations from eventemitter2:

Source https://stackoverflow.com/questions/45577450

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

Vulnerabilities

No vulnerabilities reported

Install EventEmitter2

You can download it from GitHub, Maven.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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