pcm-coordinator/internal/participant/client.go

package participant

import (
	"crypto/tls"
	"errors"
	"fmt"
	"net/http"
	"time"

	"github.com/go-resty/resty/v2"
)

type ReqCallback func(req *resty.Request)

var (
	NoRedirectClient *resty.Client
	RestyClient      *resty.Client
	HttpClient       *http.Client
)
var UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36"
var DefaultTimeout = time.Hour * 1

func InitClient() {
	NoRedirectClient = resty.New().SetRedirectPolicy(
		resty.RedirectPolicyFunc(func(req *http.Request, via []*http.Request) error {
			return http.ErrUseLastResponse
		}),
	).SetTLSClientConfig(&tls.Config{InsecureSkipVerify: true})
	NoRedirectClient.SetHeader("user-agent", UserAgent)

	RestyClient = NewRestyClient()
	HttpClient = NewHttpClient()
}

func NewRestyClient() *resty.Client {
	client := resty.New().
		SetHeader("user-agent", UserAgent).
		SetRetryCount(3).
		SetRetryResetReaders(true).
		SetTimeout(DefaultTimeout).
		SetTLSClientConfig(&tls.Config{InsecureSkipVerify: true})
	return client
}

func NewHttpClient() *http.Client {
	return &http.Client{
		Timeout: time.Hour * 48,
		Transport: &http.Transport{
			Proxy:           http.ProxyFromEnvironment,
			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
		},
	}
}

func Request(url string, method string, callback ReqCallback) ([]byte, error) {
	respErr := &RespErr{}
	req := RestyClient.R().
		SetHeaders(map[string]string{
			"Content-Type": "application/json",
		}).
		SetError(&respErr)

	if callback != nil {
		callback(req)
	}

	res, err := req.Execute(method, url)

	if err != nil {
		return nil, err
	}
	if respErr.Message != "" {
		return nil, errors.New(respErr.Message)
	}

	if res.StatusCode() != http.StatusOK && res.StatusCode() != http.StatusCreated {
		return nil, errors.New(fmt.Sprintf("msg: %s, status: %d", res.String(), res.StatusCode()))
	}

	return res.Body(), nil
}