appver

request.go

@@ -36,7 +36,7 @@ func init() {
 // newRequest creates new http request to RSP.
 func newRequest(ctx context.Context, method, link, apiToken string, payload []byte) (*http.Request, error) {
 	req, err := http.NewRequestWithContext(ctx, method, link, bytes.NewBuffer(payload))
-	req.Header.Set("User-Agent", userAgent+"/"+Version)
+	req.Header.Set("User-Agent", version())
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set("Accept", "application/json")
 	req.Header.Set("Authorization", "Bearer "+apiToken)

version.go

@@ -1,7 +1,22 @@
 package qiwi
 
+import "fmt"
+
+// AppVersion for version string of main application version
+var AppVersion string
+
 const (
 	// Version string.
-	Version   string = "0.3"
+	Version   string = "1.0.0"
 	userAgent string = "Sendtips-QIWI-Go" // UserAgent name
 )
+
+func version() (s string) {
+	s = fmt.Sprintf("%s/%s", userAgent, Version)
+
+	if AppVersion != "" {
+		s = fmt.Sprintf("%s (%s)", AppVersion, s)
+	}
+
+	return s
+}

version_test.go

@@ -0,0 +1,22 @@
+package qiwi
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestVersion(t *testing.T) {
+	s := fmt.Sprintf("%s/%s", userAgent, Version)
+
+	if s != version() {
+		t.Error("Version string is invalid")
+	}
+
+	AppVersion = "somever/1.0"
+	s = fmt.Sprintf("%s (%s/%s)", AppVersion, userAgent, Version)
+
+	if s != version() {
+		t.Error("Version string is invalid")
+	}
+
+}