https://github.com/weiwenchen2022/pubsub

Pubsub design pattern implements for Go
https://github.com/weiwenchen2022/pubsub

design-pattern go library pubsub

Last synced: about 1 month ago
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Pubsub design pattern implements for Go

• Host: GitHub
• URL: https://github.com/weiwenchen2022/pubsub
• Owner: weiwenchen2022
• License: bsd-3-clause
• Created: 2023-07-25T08:10:09.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-07-26T15:21:57.000Z (over 1 year ago)
• Last Synced: 2024-04-21T17:17:09.018Z (8 months ago)
• Topics: design-pattern, go, library, pubsub
• Language: Go
• Homepage: https://godoc.org/github.com/weiwenchen2022/pubsub
• Size: 7.81 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# pubsub

package pubsub implements the pubsub design pattern.

## Install

```sh

go get github.com/weiwenchen2022/pubsub

```

## Example

```go

package main

import (

	"fmt"

	"strings"

	"sync"

	"time"

	"github.com/weiwenchen2022/pubsub"

)

func main() {

	p := pubsub.NewPublisher(100*time.Millisecond, 10)

	defer p.Close()

	protobuf, _ := p.SubscribeSubject(func(subject any) bool {

		s, ok := subject.(string)

		if !ok {

			return false

		}

		return strings.Contains(s, "protobuf")

	})

	grpc, _ := p.SubscribeSubject(func(subject any) bool {

		s, ok := subject.(string)

		if !ok {

			return false

		}

		return strings.Contains(s, "grpc")

	})

	go func() {

		p.Publish("world")

		time.Sleep(100 * time.Millisecond)

		p.Publish("https://grpc.io")

	}()

	go func() {

		p.Publish("hello")

		time.Sleep(100 * time.Millisecond)

		p.Publish("https://protobuf.dev")

	}()

	var wg sync.WaitGroup

	wg.Add(2)

	go func() {

		fmt.Println("protobuf subject:", <-protobuf)

		wg.Done()

	}()

	go func() {

		fmt.Println("grpc subject:", <-grpc)

		wg.Done()

	}()

	wg.Wait()

	// Unordered output:

	// protobuf subject: https://protobuf.dev

	// grpc subject: https://grpc.io

}

```

## Reference

GoDoc: [https://godoc.org/github.com/weiwenchen2022/pubsub](https://godoc.org/github.com/weiwenchen2022/pubsub)