https://github.com/kamildrazkiewicz/Go-flow

Simply way to control goroutines execution order based on dependencies
https://github.com/kamildrazkiewicz/Go-flow

concurency go goflow golang goroutine goroutine-order

Last synced: about 1 year ago
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Simply way to control goroutines execution order based on dependencies

• Host: GitHub
• URL: https://github.com/kamildrazkiewicz/Go-flow
• Owner: kamildrazkiewicz
• License: mit
• Created: 2016-09-25T14:46:09.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2019-05-14T12:10:41.000Z (almost 7 years ago)
• Last Synced: 2024-10-25T05:22:37.371Z (over 1 year ago)
• Topics: concurency, go, goflow, golang, goroutine, goroutine-order
• Language: Go
• Homepage:
• Size: 16.6 KB
• Stars: 220
• Watchers: 11
• Forks: 29
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Goflow

[![GoDoc](http://godoc.org/github.com/kamildrazkiewicz/go-flow?status.svg)](http://godoc.org/github.com/kamildrazkiewicz/go-flow) [![License](https://img.shields.io/github/license/mashape/apistatus.svg?maxAge=2592000)](https://raw.githubusercontent.com/kamildrazkiewicz/go-flow/master/LICENSE) [![Release](https://img.shields.io/github/release/kamildrazkiewicz/go-flow.svg?label=Release)](http://godoc.org/github.com/kamildrazkiewicz/go-flow) [![GoReport](https://goreportcard.com/badge/github.com/kamildrazkiewicz/go-flow)](https://goreportcard.com/report/github.com/kamildrazkiewicz/go-flow) [![Travis](https://travis-ci.org/kamildrazkiewicz/go-flow.svg?branch=master)](https://travis-ci.org/kamildrazkiewicz/go-flow) [![Coverage](http://coveralls.io/repos/github/kamildrazkiewicz/go-flow/badge.svg?branch=master)](https://coveralls.io/github/kamildrazkiewicz/go-flow?branch=master)

Goflow is a simply package to control goroutines execution order based on dependencies. It works similar to ```async.auto``` from [node.js async package](https://github.com/caolan/async), but for Go.

![](http://i.imgur.com/Rej4XAC.png)

## Install

Install the package with:

```bash

go get github.com/kamildrazkiewicz/go-flow

```

Import it with:

```go

import "github.com/kamildrazkiewicz/go-flow"

```

and use `goflow` as the package name inside the code.

## Example

```go

package main

import (

	"fmt"

	"github.com/kamildrazkiewicz/go-flow"

	"time"

)

func main() {

	f1 := func(r map[string]interface{}) (interface{}, error) {

		fmt.Println("function1 started")

		time.Sleep(time.Millisecond * 1000)

		return 1, nil

	}

	f2 := func(r map[string]interface{}) (interface{}, error) {

		time.Sleep(time.Millisecond * 1000)

		fmt.Println("function2 started", r["f1"])

		return "some results", nil

	}

	f3 := func(r map[string]interface{}) (interface{}, error) {

		fmt.Println("function3 started", r["f1"])

		return nil, nil

	}

	f4 := func(r map[string]interface{}) (interface{}, error) {

		fmt.Println("function4 started", r)

		return nil, nil

	}

	res, err := goflow.New().

		Add("f1", nil, f1).

		Add("f2", []string{"f1"}, f2).

		Add("f3", []string{"f1"}, f3).

		Add("f4", []string{"f2", "f3"}, f4).

		Do()

	fmt.Println(res, err)

}

```

Output will be:

```

function1 started

function3 started 1

function2 started 1

function4 started map[f2:some results f3:]

map[f1:1 f2:some results f3: f4:] 

```