duplexify | readable stream into a streams2 duplex stream | Stream Processing library

by mafintosh JavaScript Version: 4.1.3 License: MIT

X-Ray Key Features Code Snippets(2)Community Discussions(6)Vulnerabilities Install Support

kandi X-RAY | duplexify Summary

duplexify is a JavaScript library typically used in Data Processing, Stream Processing applications. duplexify has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i duplexify-shgbit' or download it from GitHub, npm.

Turn a writeable and readable stream into a single streams2 duplex stream. Similar to duplexer2 except it supports both streams2 and streams1 as input and it allows you to set the readable and writable part asynchronously using setReadable(stream) and setWritable(stream).

Support

Quality

Security

License

Reuse

Support

duplexify has a low active ecosystem.

It has 175 star(s) with 37 fork(s). There are 4 watchers for this library.

It had no major release in the last 12 months.

There are 7 open issues and 7 have been closed. On average issues are closed in 118 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of duplexify is 4.1.3

Quality

duplexify has 0 bugs and 0 code smells.

Security

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

duplexify code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

duplexify 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

duplexify releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

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

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duplexify Key Features

No Key Features are available at this moment for duplexify.

duplexify Examples and Code Snippets

Usage

npm

Lines of Code : 28

License : No License

Copy

var duplexify = require('duplexify')

// turn writableStream and readableStream into a single duplex stream
var dup = duplexify(writableStream, readableStream)

dup.write('hello world') // will write to writableStream
dup.on('data', function(data) {

duplexify

npm

Lines of Code : 1

License : No License

Copy

npm install duplexify

Community Discussions

Trending Discussions on duplexify

Error: Anonymous caller does not have storage.objects.get access to the Google Cloud Storage object

NodeJS Lambda appears to fail but reports success

"yarn list" lists stuff I haven't installed

nodemon command not found

no node generated in node-red

TypeError while gulp typescript

QUESTION

Error: Anonymous caller does not have storage.objects.get access to the Google Cloud Storage object

Asked 2020-Jun-08 at 04:35

I am trying to follow an Image resizer tutorial in firebase. I tried rewriting the code in plain NodeJS syntax, and borrowed some ideas from other sources. Attached below is my final code in index.js

...

ANSWER

Answered 2020-Jun-08 at 04:35

Try this:

import * as admin from "firebase-admin";
admin.initializeApp(functions.config().firebase);
const gcs = admin.storage();

Source https://stackoverflow.com/questions/62195261

QUESTION

NodeJS Lambda appears to fail but reports success

Asked 2020-May-04 at 22:45

I am seeing behaviour on a NodeJS Lambda that I don't fully understand. Firstly, I'm assuming there is at least one bug in our code but the issue that we're having trouble understanding is how that impact subsequence invocations on the same Lambda instance.

As best I can understand the issue I'm having is that after an initial failure my next invocation will also fail and I see an error that seems to indicate that nodejs has terminated. Then I see it re-initialise and start handling requests successfully again.

There are a few problems:

ok, we seem to have a bug, I assume we can track that down and fix it at some point
nodejs on an subsequent invocation terminates but the invocation is treated as successful (it certainly is not)
because that second invocation is considered successful it is not retried

Let me try to show some of the details of how this looks. Firstly this is the second invocation, that really does fail, and where NodeJS appears to terminate:

...

ANSWER

Answered 2020-May-04 at 22:45

Reporting back, several months later, to describe what this really was and how to resolve it.

It was not obvious (but in hindsight perhaps it should have been) that the root of this was specifically about using MQTT.js (as part of the AWS IOT SDK) in a lambda. In particular when the lambda is not active it will sometimes get disconnected - that's reasonable to expect. What is happening here is that MQTT.js fires an event when it is disconnected and that can run at unpredictable times.

The long and short of it is that we need to handle both error and close events. If they are not handled then we have an unhandled exception as I've described above. Resolving this issue was very very simple - we just had to handle those events and create a new client etc.

I think we should have resolved this much more simply than we did - it wasn't obvious to us that it was related to MQTT (but once we realised it was it was relatively quick to resolve).

As a side note it's probably worth pointing out that the latest AWS SDK for IoT does not use MQTTjs underneath anyway. I don't know exactly what the motivation for that would be but I don't know how useful this question/answer is going to be in the future given that change.

Source https://stackoverflow.com/questions/58424633

QUESTION

"yarn list" lists stuff I haven't installed

Asked 2019-May-12 at 06:18

I see this on two different machines. When I navigate to the folder that contains my package.json file and execute the command yarn list, it lists a bunch of packages that I haven't installed. If I execute the command yarn check then it complains that most of the packages aren't installed.

So, what changed since the last time this worked correctly? Where is yarn finding all of the extraneous packages, and how do I convince it that they really aren't there?

Here are all of the relevant files in my project directory:

package.json

...

ANSWER

Answered 2019-May-11 at 22:39

I figured it out (mostly). Due to some magic that I haven't yet sorted out, I got a reference to npm inserted into my packages.json file.

Here's what I think happened: When I ran yarn list it informed me that a newer version of yarn was available. After considerable struggling and Googling, I figured out that I could upgrade yarn and npm to the latest version via:

Source https://stackoverflow.com/questions/56094013

QUESTION

nodemon command not found

Asked 2019-Jan-30 at 22:00

When i input "nodemon", i get the following error: "bash: nodemon: command not found". I've tried installing it both locally and globally, and it actuall worked yesterday, and I can't remember what I've changed so that it doesn't work anymore. I am using the Git Bash shell.

When i install nodemon, i get the following output:

...

ANSWER

Answered 2017-Aug-15 at 16:57

go to the directory you want to use nodemon, then use the path to where nodemon is installed in your node modules instead of just nodemon. i.e.

Source https://stackoverflow.com/questions/45697551

QUESTION

no node generated in node-red

Asked 2018-May-16 at 17:24

I try to solve the issue presented in Node-red: custom nodes waiting for missing types by creating a new node.

I try to use the "mqtt.js example" to obtain a pre-configured mqtt-client/subscriber to add in my palette.

So in the node folder I have the config file, named mqttConfig.json where are placed all data used by mqtt.js to enstablish the connection (ie. broker, topic, qos ...), the structure of this file is the same as in the previous one.

...

ANSWER

Answered 2018-May-16 at 17:24

The error message is pretty clear, you have a syntax error in your mqtt_rules_definer.js file (You have a missplaced . somewhere in your code). You need to fix this before Node-RED can load it.

The quickest way to find out what line the problem is will be to do something like the following:

change to the ~/.node-red directory
run node with no file after the command $ node
This will start a interactive shell which you can then type in the following:

Source https://stackoverflow.com/questions/50372875

QUESTION

TypeError while gulp typescript

Asked 2017-Dec-22 at 17:35

I am getting the following error when I execute my Typescript transpilation:

...

ANSWER

Answered 2017-Dec-22 at 13:16

From the gulp repo (issue):

phated commented 5 hours ago

Your plugins need to be updated to use a newer vinyl. The one they are using to create file objects is really old.

One more solution from the same issue (it works for me):

dozer75 commented 4 hours ago • edited

... You can reference the previous commit id instead of the branch name after the #. The last one is 6d71a65

Source https://stackoverflow.com/questions/47941277

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

Vulnerabilities

No vulnerabilities reported

Install duplexify

You can install using 'npm i duplexify-shgbit' or download it from GitHub, npm.

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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