Steelix

Steelix is an HTTP client reinforcement using resiliency strategy.

Description

Steelix wraps native golang HTTP client with some resiliency strategies. There are two resiliency strategies available, retry and circuit breaker.

Installation

go get -u github.com/indrasaputra/steelix

Usage

Struct steelix.Client wraps http.Client. Therefore, users should prepare their own http.Client, then use constructor to create an instance of steelix.Client.

To use retry and circuit breaker strategy, provide the respective configurations.

For more information, visit documentation in godoc.

package main

import (
	"net/http"
	"time"

	"github.com/indrasaputra/backoff"
	"github.com/indrasaputra/steelix"
)

func main() {
	b := &backoff.ConstantBackoff{
		BackoffInterval: 200 * time.Millisecond,
		JitterInterval:  50 * time.Millisecond,
	}

	rc := &steelix.RetryConfig{
		Backoff:  b,
		MaxRetry: 3,
	}

	bc := &steelix.BreakerConfig{
		Name:                   "steelix-breaker",
		MinRequests:            10,
		MinConsecutiveFailures: 5,
		FailurePercentage:      20,
	}

	client := steelix.NewClient(http.DefaultClient, rc, bc)
	// omitted
}

Then, use Do(req *http.Request) method to send an HTTP request.

req, _ := http.NewRequest(http.MethodGet, "http://localhost:8080", nil)
resp, err := client.Do(req)