Worker: set user agent string

cmd/flamenco-worker-poc/main.go

@@ -30,6 +30,10 @@ func main() {
 	flamenco, err := api.NewClientWithResponses(
 		"http://localhost:8080/",
 		api.WithRequestEditorFn(basicAuthProvider.Intercept),
+		api.WithRequestEditorFn(func(ctx context.Context, req *http.Request) error {
+			req.Header.Set("User-Agent", appinfo.UserAgent())
+			return nil
+		}),
 	)
 	if err != nil {
 		log.Fatal().Err(err).Msg("error creating client")

internal/appinfo/appinfo.go

@@ -12,3 +12,8 @@ var ApplicationVersion = "set-during-build"
 func FormattedApplicationInfo() string {
 	return fmt.Sprintf("%s %s", ApplicationName, ApplicationVersion)
 }
+
+// UserAgent returns the application name & version suitable for the HTTP User-Agent header.
+func UserAgent() string {
+	return fmt.Sprintf("%s/%s", ApplicationName, ApplicationVersion)
+}