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retries.go
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retries.go
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// Code generated by Speakeasy (https://speakeasyapi.dev). DO NOT EDIT.
package utils
import (
"context"
"errors"
"fmt"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/cenkalti/backoff/v4"
)
var errRequestFailed = errors.New("request failed")
type BackoffStrategy struct {
InitialInterval int
MaxInterval int
Exponent float64
MaxElapsedTime int
}
type RetryConfig struct {
Strategy string
Backoff *BackoffStrategy
RetryConnectionErrors bool
}
type Retries struct {
Config *RetryConfig
StatusCodes []string
}
func Retry(ctx context.Context, r Retries, action func() (*http.Response, error)) (*http.Response, error) {
switch r.Config.Strategy {
case "backoff":
if r.Config.Backoff == nil {
return action()
}
config := backoff.NewExponentialBackOff()
config.InitialInterval = time.Duration(r.Config.Backoff.InitialInterval) * time.Millisecond
config.MaxInterval = time.Duration(r.Config.Backoff.MaxInterval) * time.Millisecond
config.Multiplier = r.Config.Backoff.Exponent
config.MaxElapsedTime = time.Duration(r.Config.Backoff.MaxElapsedTime) * time.Millisecond
config.Reset()
var resp *http.Response
err := backoff.Retry(func() error {
if resp != nil {
resp.Body.Close()
}
select {
case <-ctx.Done():
return backoff.Permanent(ctx.Err())
default:
}
res, err := action()
if err != nil {
urlError := new(url.Error)
if errors.As(err, &urlError) {
if (urlError.Temporary() || urlError.Timeout()) && r.Config.RetryConnectionErrors {
return err
}
}
return backoff.Permanent(err)
}
resp = res
if res == nil {
return fmt.Errorf("no response")
}
for _, code := range r.StatusCodes {
if strings.Contains(strings.ToUpper(code), "X") {
codeRange, err := strconv.Atoi(code[:1])
if err != nil {
continue
}
s := res.StatusCode / 100
if s >= codeRange && s < codeRange+1 {
return errRequestFailed
}
} else {
parsedCode, err := strconv.Atoi(code)
if err != nil {
continue
}
if res.StatusCode == parsedCode {
return errRequestFailed
}
}
}
resp = res
return nil
}, config)
if err != nil && !errors.Is(err, errRequestFailed) {
return nil, err
}
return resp, nil
default:
return action()
}
}