add slash commands api_app_id parameter

slash.go

@@ -19,6 +19,7 @@ type SlashCommand struct {
 	Text           string `json:"text"`
 	ResponseURL    string `json:"response_url"`
 	TriggerID      string `json:"trigger_id"`
+	APIAppID       string `json:"api_app_id"`
 }
 
 // SlashCommandParse will parse the request of the slash command
@@ -39,6 +40,7 @@ func SlashCommandParse(r *http.Request) (s SlashCommand, err error) {
 	s.Text = r.PostForm.Get("text")
 	s.ResponseURL = r.PostForm.Get("response_url")
 	s.TriggerID = r.PostForm.Get("trigger_id")
+	s.APIAppID = r.PostForm.Get("api_app_id")
 	return s, nil
 }
 

slash_test.go

@@ -33,6 +33,7 @@ func TestSlash_ServeHTTP(t *testing.T) {
 				"token":           []string{"valid"},
 				"channel_name":    []string{"channel"},
 				"trigger_id":      []string{"0000000000.1111111111.222222222222aaaaaaaaaaaaaa"},
+				"api_app_id":      []string{"A123456"},
 			},
 			wantParams: SlashCommand{
 				Command:        "/command",
@@ -48,6 +49,7 @@ func TestSlash_ServeHTTP(t *testing.T) {
 				Token:          "valid",
 				ChannelName:    "channel",
 				TriggerID:      "0000000000.1111111111.222222222222aaaaaaaaaaaaaa",
+				APIAppID:       "A123456",
 			},
 			wantStatusCode: http.StatusOK,
 		},