go-nats | NAT type discovery tool using STUN written purely in Go

by enobufs Go Version: v0.0.1 License: MIT

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

kandi X-RAY | go-nats Summary

go-nats is a Go library typically used in Networking applications. go-nats has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

NAT type discovery tool using STUN written purely in Go.

Support

Quality

Security

License

Reuse

Support

go-nats has a low active ecosystem.

It has 10 star(s) with 0 fork(s). There are 1 watchers for this library.

It had no major release in the last 12 months.

go-nats has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of go-nats is v0.0.1

Quality

go-nats has 0 bugs and 0 code smells.

Security

go-nats has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

go-nats code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

go-nats 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

go-nats releases are available to install and integrate.

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

It has 847 lines of code, 26 functions and 6 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed go-nats and discovered the below as its top functions. This is intended to give you an instant insight into go-nats implemented functionality, and help decide if they suit your requirements.

Discover the NATS server
Main entry point
NewNATS returns a new NATS struct .
formatHostPort formats host port using default port .
check is a convenience function that prints an error to stderr

Get all kandi verified functions for this library.

go-nats Key Features

No Key Features are available at this moment for go-nats.

go-nats Examples and Code Snippets

No Code Snippets are available at this moment for go-nats.

Community Discussions

Trending Discussions on go-nats

NATS streaming "StartAt" subscription option

"Unable to start NATS Server in Go Routine" while testing

Missing Git command when calling `go get`

Golang Nats subscribe issue

NATS Client in GoLang wont subscribe

NATS async reply to request is not asynchronnous

QUESTION

NATS streaming "StartAt" subscription option

Asked 2019-Nov-22 at 19:37

I am a little confused about the requirement/significance of StartAt subscription option when compared to others such as StartAtSequence, StartWithLastReceived etc.

I tried to dig into the Java client docs but that did not help either - such as an option cannot be set, but it is gettable

Inputs appreciated!

...

ANSWER

Answered 2019-Nov-22 at 19:37

Abhishek,

You should have had a look at the Go README.md, since it seems that you are actually interested in the Go client, not the Java one :-)

Here is a link to the start position.

As you understand, the StartAtSequence is used to create a subscription at a given sequence number, while StartWithLastReceived indicates that the server should send the last one.

The StartAt() is simply the generic option in which you would pass the pb.StartPosition, which is an int32, representing the possible options:

Source https://stackoverflow.com/questions/59000472

QUESTION

"Unable to start NATS Server in Go Routine" while testing

Asked 2019-Aug-12 at 17:18

I'm trying to separate tests to use different NATS servers. (I'm not yet sure it is NATS, but my tests influence each other.)

Doing that works fine when running a single test or testing a single package. Running go test ./... on all my packages (as done in CI) I get this error (paths anonymised):

...

ANSWER

Answered 2019-Aug-12 at 16:36

It likely already starts a server per test. You cannot run things concurrently without a goroutine. The error doesn't really make any sense - anything in Go must be able to run in a goroutine, and in fact everything does run in a goroutine (even main), so it's unclear what they're really trying to say here (I would definitely recommend opening a bug report about it as that error message is terrible). In the meantime, you can keep go test from running concurrently with -parallel 1 (as indicated in go help testflag), which might help.

Source https://stackoverflow.com/questions/57464569

QUESTION

Missing Git command when calling `go get`

Asked 2019-May-10 at 17:40

My Dockerfile

...

ANSWER

Answered 2019-May-10 at 17:39

go get internally calls the "reference" client-side tool of the particular VCS used to host the package to be fetched. In other words, go get by itself does not know how to interact with VCS servers.

So yes, in order to go get a package which is hosted by Git, you need the working Git installation providing a callable git binary.

As to your second problem, it does not appear to have anything related to Go, so I suggest you to do a bit of research and then ask a separate question tagged alpine if that fails.

Source https://stackoverflow.com/questions/56081972

QUESTION

Golang Nats subscribe issue

Asked 2018-Oct-02 at 05:35

I work currently on a micro service architecture. Before I insert NATS into my project I wanted to test some simple scenarios with it.

In one scenario I have a simple publisher, which publishes 100.000 messages in a for loop over a basic Nats server running on localhost:4222.

The big problem with it, is the subscriber. When he receive between 30.000 - 40.000 messages my whole main.go program and all other go routines just stops and do nothing. I can just quit with ctrl + c. But the Publisher is still keep sending the messages. When I open a new terminal and start a new instance of the subscriber all again works well, till the Subscriber receive about 30000 messages. And the worst thing is that there appears not even one error and also no logs on the server so I have no idea whats going on.

After that I was trying replace the Subscribe-method with the QueueSubscribe-method and all works fine.

What is the main difference between Subscribe and QueueSubscribe?

Is NATS-Streaming a better opportunity? Or in which cases I should prefer Streaming and in which the standard NATS-Server

Here is my code:

Publisher:

...

ANSWER

Answered 2017-Aug-28 at 14:40

The infinite for loops are likely starving the garbage collector: https://github.com/golang/go/issues/15442#issuecomment-214965471

I was able to reproduce the issue by just running the publisher. To resolve, I recommend using a sync.WaitGroup. Here's how I updated the code linked to in the comments to get it to complete:

Source https://stackoverflow.com/questions/45886359

QUESTION

NATS Client in GoLang wont subscribe

Asked 2018-Sep-30 at 20:49

I have a very generic connection scrip to connect a nats server and just blindly print the message to the command line.

...

ANSWER

Answered 2018-May-09 at 18:49

Subscribe create an asynchronous listener for events on that channel. As your main function exits straight after the call to subscribe there program will edit before the asynchronous process has finished. There is also synchronised subscribe function:

https://godoc.org/github.com/nats-io/go-nats#Conn.SubscribeSync

Or you can add a wait into your main method so that it doesn't exit straight away.

Source https://stackoverflow.com/questions/50259732

QUESTION

NATS async reply to request is not asynchronnous

Asked 2017-Aug-30 at 15:01

I am trying to implement request/response functinonality in gnatsd using GO language and I realized that gnatsd does not reply to request in async manner.

I started my investigation using NATS github examples https://github.com/nats-io/go-nats/tree/master/examples - examples nats-req.go and nats-rply.go. The examples works well.

Then I modified them simply to test parallel requests on gnatsd and also to provide some debug info in which goroutine ID the async reply is processed. There is source code of modified examples.

nats-rply.go has been modified to simply return back text of incoming request with information on current goroutine ID. I have also add to the async processing function 1 second sleep to simulate some processing time.

...

ANSWER

Answered 2017-Aug-29 at 22:40

Gnatsd reply to Request in async manner, but it doesn't start goroutine for each request, just pure async. And because you simulate processing load using time.Sleep, which pauses calling goroutine, it looks like sync processing. If you modify your example to use goroutines, everything works well.

Source https://stackoverflow.com/questions/45944632

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

Vulnerabilities

No vulnerabilities reported

Install go-nats

You can download it from GitHub.

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 .

Find more information at: