diff --git a/.gitignore b/.gitignore
index f1c181e..3953589 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,6 @@
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
+
+# IDEA
+.idea
\ No newline at end of file
diff --git a/api.go b/api.go
new file mode 100644
index 0000000..f7f592f
--- /dev/null
+++ b/api.go
@@ -0,0 +1,3 @@
+package tamtam
+
+// TODO methods
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e02b27c
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/neonxp/tamtam-go
+
+go 1.12
diff --git a/types.go b/types.go
new file mode 100644
index 0000000..1cd88af
--- /dev/null
+++ b/types.go
@@ -0,0 +1,107 @@
+package tamtam
+
+type BotInfo struct {
+	UserID        int64  `json:"user_id"`
+	Name          string `json:"name"`
+	Username      string `json:"username,omitempty"`
+	AvatarURL     string `json:"avatar_url"`
+	FullAvatarURL string `json:"full_avatar_url"`
+}
+
+type ChatType string
+
+const (
+	TypeDialog  ChatType = "dialog"
+	TypeChat             = "chat"
+	TypeChannel          = "channel"
+)
+
+type StatusType string
+
+const (
+	StatusActive    StatusType = "active"
+	StatusRemoved              = "removed"
+	StatusLeft                 = "left"
+	StatusClosed               = "closed"
+	StatusSuspended            = "suspended"
+)
+
+type Chat struct {
+	ChatID int64      `json:"chat_id"`
+	Type   ChatType   `json:"type"`
+	Status StatusType `json:"status"`
+	Title  string     `json:"title"`
+	Icon   struct {
+		URL string `json:"url"`
+	} `json:"icon"`
+	LastEventTime     int64       `json:"last_event_time"`
+	ParticipantsCount int32       `json:"participants_count"`
+	OwnerID           int64       `json:"owner_id"`
+	Participants      interface{} `json:"participants,omitempty"`
+	IsPublic          bool        `json:"is_public"`
+	Link              string      `json:"link,omitempty"`
+	Description       string      `json:"description,omitempty"`
+}
+
+type Chats struct {
+	Chats  []Chat `json:"chats"`
+	Marker int    `json:"marker"`
+}
+
+type Participant struct {
+	UserID   int64  `json:"user_id"`
+	Name     string `json:"name"`
+	Username string `json:"username,omitempty"`
+}
+
+type Recipient struct {
+	ChatID   int64    `json:"chat_id"`
+	ChatType ChatType `json:"chat_type"`
+	UserID   int64    `json:"user_id,omitempty"`
+}
+
+type LinkType string
+
+const (
+	LinkForward = "forward"
+	LinkReply   = "reply"
+)
+
+type Message struct {
+	Sender    Participant `json:"sender"`
+	Recipient Recipient   `json:"recipient"`
+	Timestamp int64       `json:"timestamp"`
+	Link      struct {
+		Type    LinkType    `json:"type"`
+		Sender  Participant `json:"sender"`
+		ChatID  int64       `json:"chat_id"`
+		Message MessageBody `json:"message"`
+	} `json:"link"`
+	Body MessageBody `json:"body"`
+}
+
+type AttachmentType string
+
+const (
+	AttachmentImage    AttachmentType = "image"
+	AttachmentVideo                   = "video"
+	AttachmentAudio                   = "audio"
+	AttachmentFile                    = "file"
+	AttachmentContact                 = "contact"
+	AttachmentSticker                 = "sticker"
+	AttachmentShare                   = "share"
+	AttachmentLocation                = "location"
+	AttachmentKeyboard                = "inline_keyboard"
+)
+
+type Attachment struct {
+	Type    AttachmentType `json:"type"`
+	Payload interface{}    `json:"payload"`
+}
+
+type MessageBody struct {
+	MID         string       `json:"mid"`
+	Seq         int64        `json:"seq"`
+	Text        string       `json:"text,omitempty"`
+	Attachments []Attachment `json:"attachments"`
+}