diff --git a/apiGo/api/ApiBase_test.go b/apiGo/api/ApiBase_test.go
index 9893c29..d692f01 100644
--- a/apiGo/api/ApiBase_test.go
+++ b/apiGo/api/ApiBase_test.go
@@ -5,13 +5,13 @@ import (
 )
 
 func cleanUp() {
-	handlers = nil
+	handlers = make(map[string]Handler)
 }
 
 func TestAddHandler(t *testing.T) {
 	cleanUp()
 
-	AddHandler("test", ActorNode, nil, func() []byte {
+	AddHandler("test", ActorNode, func(info *HandlerInfo) []byte {
 		return nil
 	})
 	if len(handlers) != 1 {
@@ -23,13 +23,13 @@ func TestCallOfHandler(t *testing.T) {
 	cleanUp()
 
 	i := 0
-	AddHandler("test", ActorNode, nil, func() []byte {
+	AddHandler("test", ActorNode, func(info *HandlerInfo) []byte {
 		i++
 		return nil
 	})
 
 	// simulate the call of the api
-	handleAPICall("test", "", ActorNode)
+	handleAPICall("test", "", ActorNode, nil)
 
 	if i != 1 {
 		t.Errorf("Unexpected number of Lambda calls : %d/1", i)
@@ -39,26 +39,32 @@ func TestCallOfHandler(t *testing.T) {
 func TestDecodingOfArguments(t *testing.T) {
 	cleanUp()
 
-	var myvar struct {
-		Test    string
-		TestInt int
-	}
-	AddHandler("test", ActorNode, &myvar, func() []byte {
+	AddHandler("test", ActorNode, func(info *HandlerInfo) []byte {
+		var args struct {
+			Test    string
+			TestInt int
+		}
+		err := FillStruct(&args, info.Data)
+		if err != nil {
+			t.Errorf("Error parsing args: %s", err.Error())
+			return nil
+		}
+
+		if args.TestInt != 42 || args.Test != "myString" {
+			t.Errorf("Wrong parsing of argument parameters : %d/42 - %s/myString", args.TestInt, args.Test)
+		}
+
 		return nil
 	})
 
 	// simulate the call of the api
-	handleAPICall("test", `{"Test":"myString","TestInt":42}`, ActorNode)
-
-	if myvar.TestInt != 42 || myvar.Test != "myString" {
-		t.Errorf("Wrong parsing of argument parameters : %d/42 - %s/myString", myvar.TestInt, myvar.Test)
-	}
+	handleAPICall("test", `{"Test":"myString","TestInt":42}`, ActorNode, nil)
 }
 
 func TestNoHandlerCovers(t *testing.T) {
 	cleanUp()
 
-	ret := handleAPICall("test", "", ActorNode)
+	ret := handleAPICall("test", "", ActorNode, nil)
 
 	if ret != nil {
 		t.Error("Expect nil return within unhandled api action")
diff --git a/apiGo/api/Settings.go b/apiGo/api/Settings.go
index ddb8c13..59a1fd7 100644
--- a/apiGo/api/Settings.go
+++ b/apiGo/api/Settings.go
@@ -18,11 +18,42 @@ func AddSettingsHandlers() {
 }
 
 func getSettingsFromDB() {
+	/**
+	 * @api {post} /api/settings [loadGeneralSettings]
+	 * @apiDescription Get the settings object
+	 * @apiName loadGeneralSettings
+	 * @apiGroup Settings
+	 *
+	 * @apiSuccess {Object} Settings Settings object
+	 * @apiSuccess {string} Settings.VideoPath webserver path to the videos
+	 * @apiSuccess {string} Settings.EpisodePath webserver path to the tvshows
+	 * @apiSuccess {string} Settings.MediacenterName overall name of the mediacenter
+	 * @apiSuccess {string} Settings.Password new server password (-1 if no password set)
+	 * @apiSuccess {bool} Settings.TMDBGrabbing TMDB grabbing support to grab tag info and thumbnails
+	 * @apiSuccess {bool} Settings.DarkMode Darkmode enabled?
+	 * @apiSuccess {uint32} Settings.VideoNr total number of videos
+	 * @apiSuccess {float32} Settings.DBSize total size of database
+	 * @apiSuccess {uint32} Settings.DifferentTags number of different tags available
+	 * @apiSuccess {uint32} Settings.TagsAdded number of different tags added to videos
+	 * @apiSuccess {string} Settings.PathPrefix
+	 */
 	AddHandler("loadGeneralSettings", SettingsNode, func(info *HandlerInfo) []byte {
 		result := database.GetSettings()
 		return jsonify(result)
 	})
 
+	/**
+	 * @api {post} /api/settings [loadInitialData]
+	 * @apiDescription load startdata to display on homepage
+	 * @apiName loadInitialData
+	 * @apiGroup Settings
+	 *
+	 * @apiSuccess {string} VideoPath webserver path to the videos
+	 * @apiSuccess {string} EpisodePath webserver path to the tvshows
+	 * @apiSuccess {string} MediacenterName overall name of the mediacenter
+	 * @apiSuccess {string} Pasword new server password (-1 if no password set)
+	 * @apiSuccess {bool} DarkMode Darkmode enabled?
+	 */
 	AddHandler("loadInitialData", SettingsNode, func(info *HandlerInfo) []byte {
 		sett := settings.LoadSettings()
 
@@ -54,7 +85,24 @@ func getSettingsFromDB() {
 }
 
 func saveSettingsToDB() {
+	/**
+	 * @api {post} /api/settings [saveGeneralSettings]
+	 * @apiDescription Save the global settings provided
+	 * @apiName saveGeneralSettings
+	 * @apiGroup Settings
+	 *
+	 * @apiParam {Object} Settings Settings object
+	 * @apiParam {string} Settings.VideoPath webserver path to the videos
+	 * @apiParam {string} Settings.EpisodePath webserver path to the tvshows
+	 * @apiParam {string} Settings.MediacenterName overall name of the mediacenter
+	 * @apiParam {string} Settings.Password new server password (-1 if no password set)
+	 * @apiParam {bool} Settings.TMDBGrabbing TMDB grabbing support to grab tag info and thumbnails
+	 * @apiParam {bool} Settings.DarkMode Darkmode enabled?
+	 *
+	 * @apiSuccess {string} result 'success' if successfully or error message if not
+	 */
 	AddHandler("saveGeneralSettings", SettingsNode, func(info *HandlerInfo) []byte {
+		// todo correct type here!
 		var args struct {
 			Settings types.SettingsType
 		}
@@ -80,16 +128,38 @@ func saveSettingsToDB() {
 
 // methods for handling reindexing and cleanup of db gravity
 func reIndexHandling() {
+	/**
+	 * @api {post} /api/settings [startReindex]
+	 * @apiDescription Start Database video reindex Job
+	 * @apiName startReindex
+	 * @apiGroup Settings
+	 *
+	 * @apiSuccess {string} result 'success' if successfully or error message if not
+	 */
 	AddHandler("startReindex", SettingsNode, func(info *HandlerInfo) []byte {
 		videoparser.StartReindex()
 		return database.ManualSuccessResponse(nil)
 	})
 
+	/**
+	 * @api {post} /api/settings [startTVShowReindex]
+	 * @apiDescription Start Database TVShow reindex job
+	 * @apiName startTVShowReindex
+	 * @apiGroup Settings
+	 *
+	 * @apiSuccess {string} result 'success' if successfully or error message if not
+	 */
 	AddHandler("startTVShowReindex", SettingsNode, func(info *HandlerInfo) []byte {
 		videoparser.StartTVShowReindex()
 		return database.ManualSuccessResponse(nil)
 	})
 
+	/**
+	 * @api {post} /api/settings [cleanupGravity]
+	 * @apiDescription Start Database cleanup job
+	 * @apiName cleanupGravity
+	 * @apiGroup Settings
+	 */
 	AddHandler("cleanupGravity", SettingsNode, func(info *HandlerInfo) []byte {
 		videoparser.StartCleanup()
 		return nil
diff --git a/apiGo/api/TVShows.go b/apiGo/api/TVShows.go
index 99fea75..20dae62 100644
--- a/apiGo/api/TVShows.go
+++ b/apiGo/api/TVShows.go
@@ -6,12 +6,36 @@ import (
 )
 
 func AddTvshowHandlers() {
+	/**
+	 * @api {post} /api/tvshow [getTVShows]
+	 * @apiDescription get all available tv shows
+	 * @apiName getTVShows
+	 * @apiGroup TVshow
+	 *
+	 * @apiSuccess {Object[]} .
+	 * @apiSuccess {uint32} .Id tvshow id
+	 * @apiSuccess {string} .Name tvshow name
+	 */
 	AddHandler("getTVShows", TVShowNode, func(info *HandlerInfo) []byte {
 		query := "SELECT id, name FROM tvshow"
 		rows := database.Query(query)
 		return jsonify(readTVshowsFromResultset(rows))
 	})
 
+	/**
+	 * @api {post} /api/tvshow [getEpisodes]
+	 * @apiDescription get all Episodes of a TVShow
+	 * @apiName getEpisodes
+	 * @apiGroup TVshow
+	 *
+	 * @apiParam {uint32} ShowID id of tvshow to get episodes from
+	 *
+	 * @apiSuccess {Object[]} .
+	 * @apiSuccess {uint32} .ID episode id
+	 * @apiSuccess {string} .Name episode name
+	 * @apiSuccess {uint8} .Season Season number
+	 * @apiSuccess {uint8} .Episode Episode number
+	 */
 	AddHandler("getEpisodes", TVShowNode, func(info *HandlerInfo) []byte {
 		var args struct {
 			ShowID uint32
@@ -46,6 +70,20 @@ func AddTvshowHandlers() {
 		return jsonify(episodes)
 	})
 
+	/**
+	 * @api {post} /api/tvshow [loadEpisode]
+	 * @apiDescription load all info of episode
+	 * @apiName loadEpisode
+	 * @apiGroup TVshow
+	 *
+	 * @apiParam {uint32} ID id of episode
+	 *
+	 * @apiSuccess {uint32} TVShowID episode id
+	 * @apiSuccess {string} Name episode name
+	 * @apiSuccess {uint8} Season Season number
+	 * @apiSuccess {uint8} Episode Episode number
+	 * @apiSuccess {string} Path webserver path of video file
+	 */
 	AddHandler("loadEpisode", TVShowNode, func(info *HandlerInfo) []byte {
 		var args struct {
 			ID uint32
@@ -83,6 +121,16 @@ WHERE tvshow_episodes.id=%d`, args.ID)
 		return jsonify(ret)
 	})
 
+	/**
+	 * @api {post} /api/tvshow [readThumbnail]
+	 * @apiDescription Load Thubnail of specific episode
+	 * @apiName readThumbnail
+	 * @apiGroup TVshow
+	 *
+	 * @apiParam {int} Id id of episode to load thumbnail
+	 *
+	 * @apiSuccess {string} . Base64 encoded Thubnail
+	 */
 	AddHandler("readThumbnail", TVShowNode, func(info *HandlerInfo) []byte {
 		var args struct {
 			Id int
diff --git a/apiGo/api/Tags.go b/apiGo/api/Tags.go
index 71bc977..13a6a54 100644
--- a/apiGo/api/Tags.go
+++ b/apiGo/api/Tags.go
@@ -13,6 +13,17 @@ func AddTagHandlers() {
 }
 
 func deleteFromDB() {
+	/**
+	 * @api {post} /api/tags [deleteTag]
+	 * @apiDescription Start Database video reindex Job
+	 * @apiName deleteTag
+	 * @apiGroup Tags
+	 *
+	 * @apiParam {bool} [Force] force delete tag with its constraints
+	 * @apiParam {int} TagId id of tag to delete
+	 *
+	 * @apiSuccess {string} result 'success' if successfully or error message if not
+	 */
 	AddHandler("deleteTag", TagNode, func(info *HandlerInfo) []byte {
 		var args struct {
 			TagId int
@@ -44,7 +55,7 @@ func deleteFromDB() {
 			// check with regex if its the key constraint error
 			r := regexp.MustCompile("^.*a foreign key constraint fails.*$")
 			if r.MatchString(err.Error()) {
-				return []byte(`{"result":"not empty tag"}`)
+				return database.ManualSuccessResponse(fmt.Errorf("not empty tag"))
 			} else {
 				return database.ManualSuccessResponse(err)
 			}
@@ -53,6 +64,16 @@ func deleteFromDB() {
 }
 
 func getFromDB() {
+	/**
+	 * @api {post} /api/tags [getAllTags]
+	 * @apiDescription get all available Tags
+	 * @apiName getAllTags
+	 * @apiGroup Tags
+	 *
+	 * @apiSuccess {Object[]} array of tag objects
+	 * @apiSuccess {uint32} TagId
+	 * @apiSuccess {string} TagName name of the Tag
+	 */
 	AddHandler("getAllTags", TagNode, func(info *HandlerInfo) []byte {
 		query := "SELECT tag_id,tag_name from tags"
 		return jsonify(readTagsFromResultset(database.Query(query)))
@@ -60,6 +81,16 @@ func getFromDB() {
 }
 
 func addToDB() {
+	/**
+	 * @api {post} /api/tags [createTag]
+	 * @apiDescription create a new tag
+	 * @apiName createTag
+	 * @apiGroup Tags
+	 *
+	 * @apiParam {string} TagName name of the tag
+	 *
+	 * @apiSuccess {string} result 'success' if successfully or error message if not
+	 */
 	AddHandler("createTag", TagNode, func(info *HandlerInfo) []byte {
 		var args struct {
 			TagName string
@@ -73,6 +104,17 @@ func addToDB() {
 		return database.SuccessQuery(query, args.TagName)
 	})
 
+	/**
+	 * @api {post} /api/tags [addTag]
+	 * @apiDescription Add new tag to video
+	 * @apiName addTag
+	 * @apiGroup Tags
+	 *
+	 * @apiParam {int} TagId Tag id to add to video
+	 * @apiParam {int} MovieId Video Id of video to add tag to
+	 *
+	 * @apiSuccess {string} result 'success' if successfully or error message if not
+	 */
 	AddHandler("addTag", TagNode, func(info *HandlerInfo) []byte {
 		var args struct {
 			MovieId int
diff --git a/package.json b/package.json
index 11f3e16..23e5ca0 100644
--- a/package.json
+++ b/package.json
@@ -79,5 +79,11 @@
     "prettier-config": "^1.0.0",
     "react-scripts": "4.0.3",
     "apidoc": "^0.28.1"
+  },
+  "apidoc":{
+    "name": "OpenMediaCenter",
+    "description": "API Documentation of OpenMediaCenter",
+    "title": "OpenMediaCenter Doc",
+    "sampleUrl": null
   }
 }