diff --git a/push-message-provider-hpk/src/main/kotlin/ru/touchin/push/message/provider/hpk/clients/hms_oauth/HmsOauthWebClient.kt b/push-message-provider-hpk/src/main/kotlin/ru/touchin/push/message/provider/hpk/clients/hms_oauth/HmsOauthWebClient.kt
index 0051def..f49f8a7 100644
--- a/push-message-provider-hpk/src/main/kotlin/ru/touchin/push/message/provider/hpk/clients/hms_oauth/HmsOauthWebClient.kt
+++ b/push-message-provider-hpk/src/main/kotlin/ru/touchin/push/message/provider/hpk/clients/hms_oauth/HmsOauthWebClient.kt
@@ -15,6 +15,10 @@ import ru.touchin.push.message.provider.hpk.clients.hms_oauth.response.HmsOauthE
 import ru.touchin.push.message.provider.hpk.clients.hms_oauth.response.HmsOauthTokenResponse
 import ru.touchin.push.message.provider.hpk.properties.HpkProperties
 
+/**
+ * Client for Huawei Oauth service.
+ * @see <a href="https://developer.huawei.com/consumer/en/doc/development/HMSCore-Guides/open-platform-oauth-0000001053629189">Documentation</a>
+ */
 @Component
 class HmsOauthWebClient(
     webClientLogger: WebClientLogger,