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service.go
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service.go
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package appstoreserverapi
import (
"context"
"fmt"
"io"
"log"
"net/http"
"net/http/httputil"
"net/url"
"strings"
"time"
)
// Service app store server api 实现
// api: https://developer.apple.com/documentation/appstoreserverapi/generating_tokens_for_api_requests
type Service struct {
client *http.Client
// debug 将打印请求日志,用于开发测试
debug bool
// 是否 sandbox 环境
sandbox bool
// api token
token *Token
}
func NewService(token *Token) *Service {
return &Service{
client: http.DefaultClient,
token: token,
}
}
func (s *Service) clone() *Service {
ns := new(Service)
*ns = *s
return ns
}
func (s *Service) Debug(debug bool) *Service {
ns := s.clone()
ns.debug = debug
return ns
}
func (s *Service) Sandbox(sandbox bool) *Service {
ns := s.clone()
ns.sandbox = sandbox
return ns
}
func (s *Service) Host() string {
if s.sandbox {
return "https://api.storekit-sandbox.itunes.apple.com"
}
return "https://api.storekit.itunes.apple.com"
}
func (s *Service) get(ctx context.Context, path string, query url.Values) (int, []byte, error) {
u, err := url.Parse(path)
if err != nil {
return 0, nil, err
}
u.RawQuery = query.Encode()
return s.request(ctx, "GET", u.String(), nil)
}
func (s *Service) request(ctx context.Context, method string, path string, body io.Reader) (int, []byte, error) {
token, err := s.token.Get()
if err != nil {
return 0, nil, err
}
timeout := s.token.conf.Timeout
if timeout <= 0 {
timeout = 5 * time.Second
}
ctx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
req, err := http.NewRequestWithContext(ctx, method,
fmt.Sprintf("%s/%s", s.Host(), strings.TrimPrefix(path, "/")), body)
if err != nil {
return 0, nil, err
}
req.Header.Set("Authorization", fmt.Sprintf("Bearer %v", token))
if s.debug {
reqLog, _ := httputil.DumpRequestOut(req, true)
log.Printf("[debug] %s", reqLog)
}
start := time.Now()
resp, err := s.client.Do(req)
if err != nil {
return 0, nil, err
}
defer resp.Body.Close()
if s.debug {
respLog, _ := httputil.DumpResponse(resp, true)
log.Printf("[debug] [latency:%s] %s", time.Now().Sub(start), respLog)
}
payload, err := io.ReadAll(resp.Body)
if err != nil {
return 0, nil, err
}
// 响应错误
err = handleApiErr(resp.StatusCode, payload)
return resp.StatusCode, payload, err
}