diff --git a/.golangci.yaml b/.golangci.yaml
new file mode 100644
index 0000000..843af8b
--- /dev/null
+++ b/.golangci.yaml
@@ -0,0 +1,19 @@
+run:
+  deadline: 5m
+linters:
+  enable-all: true
+  disable:
+    - gochecknoglobals
+    - goimports
+    - gocritic
+linters-settings:
+  lll:
+    line-length: 420
+  gocyclo:
+    min-complexity: 40
+
+issues:
+  exclude-rules:
+    - path: "exported.go"
+      linters:
+        - dupl
diff --git a/domains/yandex/v1/auth.go b/domains/yandex/v1/auth.go
index f5c5f80..56187cb 100644
--- a/domains/yandex/v1/auth.go
+++ b/domains/yandex/v1/auth.go
@@ -16,9 +16,9 @@ func authorize() {
 		baseURL := "https://oauth.yandex.ru/authorize?response_type=code&client_id={{ client_id }}"
 		baseURL += "&device_id={{ device_id }}&device_name={{ device_name }}&force_confirm=yes"
 
-		baseURL = strings.Replace(baseURL, "{{ client_id }}", YANDEX_APPID, 1)
+		baseURL = strings.Replace(baseURL, "{{ client_id }}", YandexAppID, 1)
 		baseURL = strings.Replace(baseURL, "{{ device_id }}", c.Config.DeviceID, 1)
-		baseURL = strings.Replace(baseURL, "{{ device_name }}", DEVICE_NAME, 1)
+		baseURL = strings.Replace(baseURL, "{{ device_name }}", DefaultDeviceName, 1)
 
 		dlog.Info().Msg("Please open in your browser this URL and authorize the app. After getting the code restart the app with -authCode param (see -h for details).")
 		dlog.Info().Msgf("Auth URL: %s", baseURL)
@@ -29,9 +29,5 @@ func authorize() {
 
 // checkAuth detects if we have authorized already
 func checkAuth() bool {
-	if c.Config.Token.AccessToken != "" {
-		return true
-	}
-
-	return false
+	return c.Config.Token.AccessToken != ""
 }
diff --git a/domains/yandex/v1/exported.go b/domains/yandex/v1/exported.go
index 3d139ae..86d1f21 100644
--- a/domains/yandex/v1/exported.go
+++ b/domains/yandex/v1/exported.go
@@ -9,10 +9,10 @@ import (
 	"gitlab.com/pztrn/flagger"
 )
 
-const YANDEX_APPID = "7d8a0561fdc44c05bb6695b464403f9c"
-const YANDEX_APPPW = "56e12e4ed0d64738bf441a47f68c7146"
-const DEVICE_NAME = "yapusher-cli"
-const MAX_FILE_SIZE = 10 * 1024 * 1024 * 1024 // 10 gigabytes
+const YandexAppID = "7d8a0561fdc44c05bb6695b464403f9c"
+const YandexAppPw = "56e12e4ed0d64738bf441a47f68c7146"
+const DefaultDeviceName = "yapusher-cli"
+const MaxUploadSize = 10 * 1024 * 1024 * 1024 // 10 gigabytes
 
 var (
 	c    *context.Context
diff --git a/domains/yandex/v1/requests.go b/domains/yandex/v1/requests.go
index 45a39c8..057bf48 100644
--- a/domains/yandex/v1/requests.go
+++ b/domains/yandex/v1/requests.go
@@ -14,9 +14,6 @@ import (
 	"strings"
 )
 
-func reportFileProgress(r int64) {
-}
-
 func sendCode(code int) {
 	baseURL := "https://oauth.yandex.ru/token"
 
@@ -25,9 +22,9 @@ func sendCode(code int) {
 	form.Set("grant_type", "authorization_code")
 	form.Set("code", strconv.Itoa(code))
 	form.Set("device_id", c.Config.DeviceID)
-	form.Set("device_name", DEVICE_NAME)
-	form.Set("client_id", YANDEX_APPID)
-	form.Set("client_secret", YANDEX_APPPW)
+	form.Set("device_name", DefaultDeviceName)
+	form.Set("client_id", YandexAppID)
+	form.Set("client_secret", YandexAppPw)
 
 	req, _ := http.NewRequest("POST", baseURL, strings.NewReader(form.Encode()))
 	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
@@ -78,7 +75,7 @@ func uploadFile(uploadPath string, filePath string, overwriteFile bool) {
 		}
 	}
 
-	if fileInfo.Size() > (MAX_FILE_SIZE - 1) {
+	if fileInfo.Size() > (MaxUploadSize - 1) {
 		dlog.Fatal().Msg("Requested file is too big")
 	}