ksqldb-go | A Golang client for ksqlDB | Continuous Deployment library

by rmoff Go Version: v0.04 License: No License

X-Ray Key Features Code Snippets(3)Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | ksqldb-go Summary

ksqldb-go is a Go library typically used in Devops, Continuous Deployment, Docker applications. ksqldb-go has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This is a Go client for ksqlDB. It supports both pull and push queries, as well as command execution. ️ Disclaimer #1: I am brand new to Go! Tips (or PRs) to improve the code very welcome :). ️ Disclaimer #2: This is a personal project and not supported or endorsed by Confluent.

Support

Quality

Security

License

Reuse

Support

ksqldb-go has a low active ecosystem.

It has 48 star(s) with 5 fork(s). There are 6 watchers for this library.

It had no major release in the last 12 months.

There are 8 open issues and 2 have been closed. On average issues are closed in 4 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of ksqldb-go is v0.04

Quality

ksqldb-go has 0 bugs and 8 code smells.

Security

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

ksqldb-go code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ksqldb-go does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

ksqldb-go releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

It has 428 lines of code, 11 functions and 11 files.

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

Top functions reviewed by kandi - BETA

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

Push pushes to ksqlDB
NewClient returns a new Client .

Get all kandi verified functions for this library.

ksqldb-go Key Features

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

ksqldb-go Examples and Code Snippets

Examples,Push query

Lines of Code : 30

License : No License

Copy

rc := make(chan ksqldb.Row)
hc := make(chan ksqldb.Header, 1)

k := "SELECT ROWTIME, ID, NAME, DOGSIZE, AGE FROM DOGS EMIT CHANGES;"

// This Go routine will handle rows as and when they
// are sent to the channel
go func() {
    var NAME string

Examples,Pull query

Lines of Code : 21

License : No License

Copy

ctx, ctxCancel := context.WithTimeout(context.Background(), 10 * time.Second)
defer ctxCancel()

k := "SELECT TIMESTAMPTOSTRING(WINDOWSTART,'yyyy-MM-dd HH:mm:ss','Europe/London') AS WINDOW_START, TIMESTAMPTOSTRING(WINDOWEND,'HH:mm:ss','Europe/London'

Examples,Execute a command

Lines of Code : 10

License : No License

Copy

if err := client.Execute(ctx, ksqlDBServer, `
	CREATE STREAM DOGS (ID STRING KEY,
						NAME STRING,
						DOGSIZE STRING,
						AGE STRING)
				  WITH (KAFKA_TOPIC='dogs',
				  VALUE_FORMAT='JSON');
`); err != nil {
    return fmt.Errorf("Error cre

Community Discussions

Trending Discussions on ksqldb-go

ksqldb - exactly one delivery for pull query, multiple app instances

QUESTION

ksqldb - exactly one delivery for pull query, multiple app instances

Asked 2022-Feb-15 at 07:51

I am trying to build an application on top of ksqldb.

Let's say I will have a simple producer:

...

ANSWER

Answered 2022-Feb-15 at 07:51

First up, note that I no longer maintain that client, and you might want to check out https://github.com/thmeitz/ksqldb-go instead.

Now onto your question. If I'm understanding correctly you want to run multiple instances of the same logical consumer for parallelism purposes, and thus each message should be processed by that logical consumer once.

If that's the case then you are describing what is called a consumer group in Kafka. Multiple instances of a consumer identify themselves with the same client ID and Kafka ensures that data from across the source topic's partitions is routed to the available consumers within that group. If there are four consumers and eight partitions, each consumer is going to get the data from two partitions. If one consumer leaves the group (it crashes, you scale down, etc) then Kafka reassigns that consumer's partitions across the remaining consumers with the group.

This is different behaviour from what you are seeing, in which you are effectively instantiating multiple independent consumers. By design, Kafka ensures that each consumer that is subscribed to a topic receives all of the messages on that topic.

I'm deliberately talking about Kafka here, and not ksqlDB. That's because ksqlDB is built on Kafka and in order to make sense of what you are seeing it's important to explain the underpinning fundamentals.

To get the behaviour that you're looking for you probably want to look at using the Consumer API directly in your consumer application. You can see an example of the Consumer API in this quickstart for Golang and Kafka. To create a consumer group you specify a unique group.id.

Source https://stackoverflow.com/questions/71117119

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

Vulnerabilities

No vulnerabilities reported

Install ksqldb-go

This client is a Go module, therefore you can have it simply by adding the following import to your code:. Then run a build to have this client automatically added to your go.mod file as a dependency.

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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