Fabsolute/Promise-in-Go

Promise In Go

Install

go get github.com/fabsolute/promise-in-go

Usage

The basic usage is to just do

// create file main.go
package main

import (
	"fmt"
	"github.com/fabsolute/promise-in-go"
	"strconv"
	"time"
)

func main() {
	response := promise.New(func(resolve, reject func(interface{})) {
		time.Sleep(2 * time.Second)
		resolve(2)
	}).Then(func(value interface{}) interface{} {
		return value.(int) + 4
	}).Then(func(value interface{}) interface{} {
		return "This message has " + strconv.Itoa(value.(int)) + " words."
	}).Await()

	fmt.Println(response)
}

Execute go run main.go

You will see

This message has 6 words.