package service import ( "context" "encoding/json" "fmt" "io" "net/http" ) func simpleReq[T any](client *http.Client, ctx context.Context, url string, headers map[string]string) (*T, error) { var decodedRes T req, err := http.NewRequestWithContext(ctx, "GET", url, nil) if err != nil { return nil, err } for key, value := range headers { req.Header.Add(key, value) } res, err := client.Do(req) if err != nil { return nil, err } defer res.Body.Close() if res.StatusCode < 200 || res.StatusCode >= 300 { body, err := io.ReadAll(res.Body) if err != nil { return nil, fmt.Errorf("request failed with status: %s", res.Status) } return nil, fmt.Errorf("request failed with status: %s and body: %s", res.Status, body) } body, err := io.ReadAll(res.Body) if err != nil { return nil, err } err = json.Unmarshal(body, &decodedRes) if err != nil { return nil, err } return &decodedRes, nil }