diff --git a/database/main.go b/database/main.go
index 5f7f4b2..a43de0c 100644
--- a/database/main.go
+++ b/database/main.go
@@ -7,6 +7,7 @@ import (
 	"gorm.io/gorm/logger"
 )
 
+// Database struct to read from config
 type Database struct {
 	DB                *gorm.DB
 	Connection        string          `toml:"connection"`
@@ -17,6 +18,7 @@ type Database struct {
 	migrationTestdata map[string]*gormigrate.Migration
 }
 
+// Run database config - connect and migrate
 func (config *Database) Run() error {
 	db, err := gorm.Open(postgres.Open(config.Connection), &gorm.Config{
 		Logger: logger.Default.LogMode(config.LogLevel),
@@ -36,6 +38,7 @@ func (config *Database) Run() error {
 	return nil
 }
 
+// Status get status - is database pingable
 func (config *Database) Status() error {
 	sqlDB, err := config.DB.DB()
 	if err != nil {
diff --git a/database/migration.go b/database/migration.go
index 87079e8..696fe40 100644
--- a/database/migration.go
+++ b/database/migration.go
@@ -9,6 +9,7 @@ import (
 )
 
 var (
+	// ErrNothingToMigrate if nothing has to be migrated
 	ErrNothingToMigrate = errors.New("there is nothing to migrate")
 )
 
@@ -28,9 +29,12 @@ func (config *Database) sortedMigration(testdata bool) []*gormigrate.Migration {
 	return migrations
 }
 
+// Migrate run migration
 func (config *Database) Migrate() error {
 	return config.migrate(false)
 }
+
+// MigrateTestdata run migration and testdata migration
 func (config *Database) MigrateTestdata() error {
 	return config.migrate(true)
 }
@@ -45,9 +49,12 @@ func (config *Database) migrate(testdata bool) error {
 	return m.Migrate()
 }
 
+// AddMigration add to database config migration step
 func (config *Database) AddMigration(m ...*gormigrate.Migration) {
 	config.addMigrate(false, m...)
 }
+
+// AddMigrationTestdata add to database config migration step of testdata
 func (config *Database) AddMigrationTestdata(m ...*gormigrate.Migration) {
 	config.addMigrate(true, m...)
 }
@@ -68,6 +75,7 @@ func (config *Database) addMigrate(testdata bool, m ...*gormigrate.Migration) {
 	}
 }
 
+// ReRun Rollback und run every migration step again till id
 func (config *Database) ReRun(id string) {
 	migrations := config.sortedMigration(true)
 	x := 0
diff --git a/web/api/status/main.go b/web/api/status/main.go
index ee2691e..e333fe9 100644
--- a/web/api/status/main.go
+++ b/web/api/status/main.go
@@ -9,13 +9,17 @@ import (
 )
 
 var (
-	VERSION string      = ""
-	UP      func() bool = func() bool {
+	// VERSION string on status API
+	VERSION string = ""
+	// UP function to detect, if API is healthy
+	UP func() bool = func() bool {
 		return true
 	}
+	// EXTRAS show more informations in status
 	EXTRAS interface{} = nil
 )
 
+// Status API response
 type Status struct {
 	Version string      `json:"version"`
 	Up      bool        `json:"up"`
diff --git a/web/error.go b/web/error.go
index 738eada..474a94e 100644
--- a/web/error.go
+++ b/web/error.go
@@ -1,5 +1,6 @@
 package web
 
+// HTTPError as a response, with data
 type HTTPError struct {
 	Message string      `json:"message" example:"invalid format"`
 	Error   string      `json:"error,omitempty" example:"<internal error message>"`
@@ -7,7 +8,10 @@ type HTTPError struct {
 }
 
 const (
+	// APIErrorInvalidRequestFormat const for api error with invalid request format
 	APIErrorInvalidRequestFormat = "Invalid Request Format"
-	APIErrorInternalDatabase     = "Internal Database Error"
-	APIErrorNotFound             = "Not found"
+	// APIErrorInternalDatabase const for api error with problem with database
+	APIErrorInternalDatabase = "Internal Database Error"
+	// APIErrorNotFound const for api error with not found object
+	APIErrorNotFound = "Not found"
 )
diff --git a/web/main.go b/web/main.go
index e00d22b..049c034 100644
--- a/web/main.go
+++ b/web/main.go
@@ -55,7 +55,6 @@ func (config *Service) Run() error {
 			Cache:      autocert.DirCache(config.ACME.Cache),
 		}
 		return autotls.RunWithManager(r, &m)
-	} else {
-		return r.Run(config.Listen)
 	}
+	return r.Run(config.Listen)
 }
diff --git a/web/metrics/main.go b/web/metrics/main.go
index dfe6860..9fc9f34 100644
--- a/web/metrics/main.go
+++ b/web/metrics/main.go
@@ -17,9 +17,12 @@ import (
 )
 
 var (
-	NAMESPACE string      = "service"
-	VERSION   string      = ""
-	UP        func() bool = func() bool {
+	// NAMESPACE of prometheus metrics
+	NAMESPACE string = "service"
+	// VERSION in prometheus metrics
+	VERSION string = ""
+	// UP function for healthy check in prometheus metrics
+	UP func() bool = func() bool {
 		return true
 	}
 )
diff --git a/web/module.go b/web/module.go
index 02ffc27..cda7486 100644
--- a/web/module.go
+++ b/web/module.go
@@ -10,12 +10,15 @@ var (
 	modules []ModuleRegisterFunc
 )
 
+// ModuleRegisterFunc format of module which registerd to WebService
 type ModuleRegisterFunc func(*gin.Engine, *Service)
 
+// ModuleRegister used on start of WebService
 func ModuleRegister(f ModuleRegisterFunc) {
 	modules = append(modules, f)
 }
 
+// Bind WebService to gin.Engine
 func (ws *Service) Bind(r *gin.Engine) {
 	for _, f := range modules {
 		f(r, ws)
diff --git a/web/request.go b/web/request.go
index 6b7183d..3c812fc 100644
--- a/web/request.go
+++ b/web/request.go
@@ -6,6 +6,7 @@ import (
 	"time"
 )
 
+// JSONRequest easy get request for json
 func JSONRequest(url string, value interface{}) error {
 	var netClient = &http.Client{
 		Timeout: time.Second * 20,
diff --git a/web/session.go b/web/session.go
index d0a9206..0dbd77b 100644
--- a/web/session.go
+++ b/web/session.go
@@ -6,6 +6,7 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
+// LoadSession module to start Session Handling in WebService
 func (config *Service) LoadSession(r *gin.Engine) {
 	store := cookie.NewStore([]byte(config.Session.Secret))
 	r.Use(sessions.Sessions(config.Session.Name, store))