telebot

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 Go to latest Published: Dec 11, 2017 License: MIT Imports: 16 Imported by: 0

README

Telebot

"I never knew creating Telegram bots could be so sexy!"

GoDoc Travis

go get -u gopkg.in/tucnak/telebot.v2

Overview

Telebot is a bot framework for Telegram Bot API. This package provides the best of its kind API for command routing, inline query requests and keyboards, as well as callbacks. Actually, I went a couple steps further, so instead of making a 1:1 API wrapper I chose to focus on the beauty of API and performance. Some of the strong sides of telebot are:

  • Real concise API
  • Command routing
  • Middleware
  • Transparent File API
  • Effortless bot callbacks

All the methods of telebot API are extremely easy to memorize and get used to. Also, consider Telebot a highload-ready solution. I'll test and benchmark the most popular actions and if necessary, optimize against them without sacrificing API quality.

Getting Started

Let's take a look at the minimal telebot setup:

package main

import (
	"time"
	"log"

	tb "gopkg.in/tucnak/telebot.v2"
)

func main() {
	b, err := tb.NewBot(tb.Settings{
		Token:  "TOKEN_HERE",
		Poller: &tb.LongPoller{Timeout: 10 * time.Second},
	})

	if err != nil {
		log.Fatal(err)
		return
	}

	b.Handle("/hello", func(m *tb.Message) {
		b.Send(m.Sender, "hello world")
	})

	b.Start()
}

Simple, innit? Telebot's routing system takes care of deliviering updates to their endpoints, so in order to get to handle any meaningful event, all you got to do is just plug your function to one of the Telebot-provided endpoints. You can find the full list here.

b, _ := tb.NewBot(settings)

b.Handle(tb.OnText, func(m *tb.Message) {
	// all the text messages that weren't
	// captured by existing handlers
}

b.Handle(tb.OnPhoto, func(m *tb.Message) {
	// photos only
}

b.Handle(tb.OnChannelPost, func (m *tb.Message) {
	// channel posts only
})

b.Handle(tb.Query, func (q *tb.Query) {
	// incoming inline queries
})

Now there's a dozen of supported endpoints (see package consts). Let me know if you'd like to see some endpoint or endpoint idea implemented. This system is completely extensible, so I can introduce them without braking backwards-compatibity.

Poller

Telebot doesn't really care how you provide it with incoming updates, as long as you set it up with a Poller:

// Poller is a provider of Updates.
//
// All pollers must implement Poll(), which accepts bot
// pointer and subscription channel and start polling
// synchronously straight away.
type Poller interface {
	// Poll is supposed to take the bot object
	// subscription channel and start polling
	// for Updates immediately.
	//
	// Poller must listen for stop constantly and close
	// it as soon as it's done polling.
	Poll(b *Bot, updates chan Update, stop chan struct{})
}

Telegram Bot API supports long polling and webhook integration. I don't really care about webhooks, so the only concrete Poller you'll find in the library is the LongPoller. Poller means you can plug telebot into whatever existing bot infrastructure (load balancers?) you need, if you need to. Another great thing about pollers is that you can chain them, making some sort of middleware:

poller := &tb.LongPoller{Timeout: 15 * time.Second}
spamProtected := tb.NewMiddlewarePoller(poller, func(upd *tb.Update) bool {
	if upd.Message == nil {
		return true
	}

	if strings.Contains(upd.Message.Text, "spam") {
		return false
	}

	return true
})

bot, _ := tb.NewBot(tb.Settings{
	// ...
	Poller: spamProtected,
})

// graceful shutdown
go func() {
	<-time.After(N * time.Second)
	bot.Stop()
})()

bot.Start() // blocks until shutdown

fmt.Println(poller.LastUpdateID) // 134237

Commands

When handling commands, Telebot supports both direct (/command) and group-like syntax (/command@botname) and will never deliver messages addressed to some other bot, even if privacy mode is off. For simplified deep-linking, telebot also extracts payload:

// Command: /start <PAYLOAD>
b.Handle("/start", func(m *tb.Message) {
	if !m.Private() {
		return
	}

	fmt.Println(m.Payload) // <PAYLOAD>
})

Files

Telegram allows files up to 20 MB in size.

Telebot allows to both upload (from disk / by URL) and download (from Telegram) and files in bot's scope. Also, sending any kind of media with a File created from disk will upload the file to Telegram automatically:

a := &tb.Audio{File: tb.FromDisk("file.ogg")}

fmt.Println(a.OnDisk()) // true
fmt.Println(a.InCloud()) // false

// Will upload the file from disk and send it to recipient
bot.Send(recipient, a)

// Next time you'll be sending this very *Audio, Telebot won't
// re-upload the same file but rather utilize its Telegram FileID
bot.Send(otherRecipient, a)

fmt.Println(a.OnDisk()) // true
fmt.Println(a.InCloud()) // true
fmt.Println(a.FileID) // <telegram file id: ABC-DEF1234ghIkl-zyx57W2v1u123ew11>

You might want to save certain Files in order to avoid re-uploading. Feel free to marshal them into whatever format, File only contain public fields, so no data will ever be lost.

Sendable

Send is undoubteldy the most important method in Telebot. Send() accepts a Recipient (could be user, group or a channel) and a Sendable. FYI, not only all telebot-provided media types (Photo, Audio, Video, etc.) are Sendable, but you can create composite types of your own. As long as they satisfy Sendable, Telebot will be able to send them out.

// Sendable is any object that can send itself.
//
// This is pretty cool, since it lets bots implement
// custom Sendables for complex kind of media or
// chat objects spanning across multiple messages.
type Sendable interface {
    Send(*Bot, Recipient, *SendOptions) (*Message, error)
}

The only type at the time that doesn't fit Send() is Album and there is a reason for that. Albums were added not so long ago, so they are slightly quirky for backwards compatibilities sake. In fact, an Album can be sent, but never received. Instead, Telegram returns a []Message, one for each media object in the album:

p := &tb.Photo{File: tb.FromDisk("chicken.jpg")}
v := &tb.Video{File: tb.FromURL("http://video.mp4")}

msgs, err := b.SendAlbum(user, tb.Album{p, v})
Send options

Send options are objects and flags you can pass to Send(), Edit() and friends as optional arguments (following the recipient and the text/media). The most important one is called SendOptions, it lets you control all the properties of the message supported by Telegram. The only drawback is that it's rather inconvenient to use at times, so Send() supports multiple shorthands:

// regular send options
b.Send(user, "text", &tb.SendOptions{
	// ...
})

// ReplyMarkup is a part of SendOptions,
// but often it's the only option you need
b.Send(user, "text", &tb.ReplyMarkup{
	// ...
})

// flags: no notification && no web link preview
b.Send(user, "text", tb.Silent, tb.NoPreview)

Full list of supported option-flags you can find here.

Editable

If you want to edit some existing message, you don't really need to store the original *Message object. In fact, upon edit, Telegram only requires chat_id and message_id. So you don't really need the Message as the whole. Also you might want to store references to certain messages in the database, so I thought it made sense for any Go struct to be editable as a Telegram message, to implement Editable:

// Editable is an interface for all objects that
// provide "message signature", a pair of 32-bit
// message ID and 64-bit chat ID, both required
// for edit operations.
//
// Use case: DB model struct for messages to-be
// edited with, say two collums: msg_id,chat_id
// could easily implement MessageSig() making
// instances of stored messages editable.
type Editable interface {
	// MessageSig is a "message signature".
	//
	// For inline messages, return chatID = 0.
	MessageSig() (messageID int, chatID int64)
}

For example, Message type is Editable. Here is the implementation of StoredMessage type, provided by telebot:

// StoredMessage is an example struct suitable for being
// stored in the database as-is or being embedded into
// a larger struct, which is often the case (you might
// want to store some metadata alongside, or might not.)
type StoredMessage struct {
	MessageID int   `sql:"message_id" json:"message_id"`
	ChatID    int64 `sql:"chat_id" json:"chat_id"`
}

func (x StoredMessage) MessageSig() (int, int64) {
	return x.MessageID, x.ChatID
}

Why bother at all? Well, it allows you to do things like this:

// just two integer columns in the database
var msgs []tb.StoredMessage
db.Find(&msgs) // gorm syntax

for _, msg := range msgs {
	bot.Edit(&msg, "Updated text.")
	// or
	bot.Delete(&msg)
}

I find it incredibly neat. Worth noting, at this point of time there exists another method in the Edit family, EditCaption() which is of a pretty rare use, so I didn't bother including it to Edit(), just like I did with SendAlbum() as it would inevitably lead to unnecessary complications.

var m *Message

// change caption of a photo, audio, etc.
bot.EditCaption(m, "new caption")

Keyboards

Telebot supports both kinds of keyboards Telegram provides: reply and inline keyboards. Any button can also act as an endpoints for Handle():

func main() {
	b, _ := tb.NewBot(tb.Settings{...})

	// This button will be displayed in user's
	// reply keyboard.
	replyBtn := tb.ReplyButton{Text: "🌕 Button #1"}
	replyKeys := [][]tb.ReplyButton{
		[]tb.ReplyButton{replyBtn},
		// ...
	}

	// And this one — just under the message itself.
	// Pressing it will cause the client to send
	// the bot a callback.
	//
	// Make sure Unique stays unique as it has to be
	// for callback routing to work.
	inlineBtn := tb.InlineButton{
		Unique: "sad_moon",
		Text: "🌚 Button #2",
	}
	inlineKeys := [][]tb.InlineButton{
		[]tb.InlineButton{inlineBtn},
		// ...
	}

	b.Handle(&replyBtn, func(m *tb.Message) {
		// on reply button pressed
	})

	b.Handle(&inlineBtn, func(c *tb.Callback) {
		// on inline button pressed (callback!)

		// always respond!
		c.Respond(&tb.CallbackResponse{...})
	})

	// Command: /start <PAYLOAD>
	b.Handle("/start", func(m *tb.Message) {
		if !m.Private() {
			return
		}

		b.Send(m.Sender, "Hello!", &tb.ReplyMarkup{
			ReplyKeyboard:  replyKeys,
			InlineKeyboard: inlineKeys,
		})
	})

	b.Start()
}

Inline mode

So if you want to handle incoming inline queries you better plug the tb.OnQuery endpoint and then use the Answer() method to send a list of inline queries back. I think at the time of writing, telebot supports all of the provided result types (but not the cached ones). This is how it looks like:

b.Handle(tb.OnQuery, func(q *tb.Query) {
	urls := []string{
		"http://photo.jpg",
		"http://photo2.jpg",
	}

	results := make(tb.Results, len(urls)) // []tb.Result
	for i, url := range urls {
		result := &tb.PhotoResult{
			URL: url,

			// required for photos
			ThumbURL: url,
		}

		results[i] = result
	}

	err := b.Answer(q, &tb.QueryResponse{
		Results: results,
		CacheTime: 60, // a minute
	})

	if err != nil {
		fmt.Println(err)
	}
})

There's not much to talk about really. It also support some form of authentication through deep-linking. For that, use fields SwitchPMText and SwitchPMParameter of QueryResponse.

Contributing

  1. Fork it
  2. Clone it: git clone https://github.com/tucnak/telebot
  3. Create your feature branch: git checkout -b my-new-feature
  4. Make changes and add them: git add .
  5. Commit: git commit -m 'Add some feature'
  6. Push: git push origin my-new-feature
  7. Pull request

Donate

I do coding for fun but I also try to search for interesting solutions and optimize them as much as possible. If you feel like it's a good piece of software, I wouldn't mind a tip!

Bitcoin: 1DkfrFvSRqgBnBuxv9BzAz83dqur5zrdTH

License

Telebot is distributed under MIT.

Documentation

Overview

Package telebot is a framework for Telegram bots.

Example: 

import (
	"time"
	tb "gopkg.in/tucnak/telebot.v2"
)

func main() {
	b, err := tb.NewBot(tb.Settings{
		Token: "TOKEN_HERE",
		Poller: &tb.LongPoller{10 * time.Second},
	})

	if err != nil {
		return
	}

	b.Handle(tb.OnMessage, func(m *tb.Message) {
		b.Send(m.Sender, "hello world")
	}

	b.Start()
}

Index

Constants

View Source 
const (
	// Basic message handlers.
	//
	// Handler: func(*Message)
	OnText              = "\atext"
	OnPhoto             = "\aphoto"
	OnAudio             = "\aaudio"
	OnDocument          = "\adocument"
	OnSticker           = "\asticker"
	OnVideo             = "\avideo"
	OnVoice             = "\avoice"
	OnVideoNote         = "\avideo_note"
	OnContact           = "\acontact"
	OnLocation          = "\alocation"
	OnVenue             = "\avenue"
	OnEdited            = "\aedited"
	OnPinned            = "\apinned"
	OnChannelPost       = "\achan_post"
	OnEditedChannelPost = "\achan_edited_post"

	// Will fire when bot is added to a group.
	OnAddedToGroup = "\aadded_to_group"
	// Group events:
	OnUserJoined        = "\auser_joined"
	OnUserLeft          = "\auser_left"
	OnNewGroupTitle     = "\anew_chat_title"
	OnNewGroupPhoto     = "\anew_chat_photo"
	OnGroupPhotoDeleted = "\achat_photo_del"

	// Migration happens when group switches to
	// a super group. You might want to update
	// your internal references to this chat
	// upon switching as its ID will change.
	//
	// Handler: func(from, to int64)
	OnMigration = "\amigration"

	// Will fire on callback requests.
	//
	// Handler: func(*Callback)
	OnCallback = "\acallback"

	// Will fire on incoming inline queries.
	//
	// Handler: func(*Query)
	OnQuery = "\aquery"
)

These are one of the possible events Handle() can deal with.

For convenience, all Telebot-provided endpoints start with an "alert" character \a.

Variables

View Source 
var (
	ErrCouldNotUpdate = errors.New("getUpdates() failed")
)

Functions

func Forever 

func Forever() int64

Forever is a Unixtime of "forever" banning.

Types

type Album 

type Album []InputMedia

Album lets you group multiple media (so-called InputMedia) into a single messsage.

On older clients albums look like N regular messages.

type ArticleResult 

type ArticleResult struct {
	ResultBase

	// Title of the result.
	Title string `json:"title"`

	// Message text. Shortcut (and mutually exclusive to) specifying
	// InputMessageContent.
	Text string `json:"message_text,omitempty"`

	// Optional. URL of the result.
	URL string `json:"url,omitempty"`

	// Optional. Pass True, if you don't want the URL to be shown in the message.
	HideURL bool `json:"hide_url,omitempty"`

	// Optional. Short description of the result.
	Description string `json:"description,omitempty"`

	// Optional. URL of the thumbnail for the result.
	ThumbURL string `json:"thumb_url,omitempty"`
}

ArticleResult represents a link to an article or web page. See also: https://core.telegram.org/bots/api#inlinequeryresultarticle

type Audio 

type Audio struct {
	File

	// Duration of the recording in seconds as defined by sender.
	Duration int `json:"duration,omitempty"`

	// (Optional)
	Caption   string `json:"caption,omitempty"`
	Title     string `json:"title,omitempty"`
	Performer string `json:"performer,omitempty"`
	MIME      string `json:"mime_type,omitempty"`
}

Audio object represents an audio file.

func (*Audio) Send 

func (a *Audio) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type AudioResult 

type AudioResult struct {
	ResultBase

	// Title.
	Title string `json:"title"`

	// A valid URL for the audio file.
	URL string `json:"audio_url"`

	// Optional. Performer.
	Performer string `json:"performer,omitempty"`

	// Optional. Audio duration in seconds.
	Duration int `json:"audio_duration,omitempty"`

	// If Cache != "", it'll be used instead
	Cache string `json:"audio_file_id,omitempty"`
}

AudioResult represents a link to an mp3 audio file.

type Bot 

type Bot struct {
	Me      *User
	Token   string
	Updates chan Update
	Poller  Poller
	// contains filtered or unexported fields
}

Bot represents a separate Telegram bot instance.

func NewBot 

func NewBot(pref Settings) (*Bot, error)

NewBot does try to build a Bot with token `token`, which is a secret API key assigned to particular bot.

func (*Bot) AdminsOf 

func (b *Bot) AdminsOf(chat *Chat) ([]ChatMember, error)

AdminsOf return a member list of chat admins.

On success, returns an Array of ChatMember objects that contains information about all chat administrators except other bots. If the chat is a group or a supergroup and no administrators were appointed, only the creator will be returned.

func (*Bot) Answer 

func (b *Bot) Answer(query *Query, response *QueryResponse) error

Answer sends a response for a given inline query. A query can only be responded to once, subsequent attempts to respond to the same query will result in an error.

func (*Bot) Ban 

func (b *Bot) Ban(chat *Chat, member *ChatMember) error

Ban will ban user from chat until `member.RestrictedUntil`.

func (*Bot) ChatByID 

func (b *Bot) ChatByID(id string) (*Chat, error)

ChatByID fetches chat info of its ID.

Including current name of the user for one-on-one conversations, current username of a user, group or channel, etc.

Returns a Chat object on success.

func (*Bot) ChatMemberOf 

func (b *Bot) ChatMemberOf(chat *Chat, user *User) (*ChatMember, error)

ChatMemberOf return information about a member of a chat.

Returns a ChatMember object on success.

func (*Bot) Delete 

func (b *Bot) Delete(message Editable) error

Delete removes the message, including service messages, with the following limitations:

  • A message can only be deleted if it was sent less than 48 hours ago.
  • Bots can delete outgoing messages in groups and supergroups.
  • Bots granted can_post_messages permissions can delete outgoing messages in channels.
  • If the bot is an administrator of a group, it can delete any message there.
  • If the bot has can_delete_messages permission in a supergroup or a channel, it can delete any message there.

func (*Bot) DeleteGroupPhoto 

func (b *Bot) DeleteGroupPhoto(chat *Chat) error

DeleteGroupPhoto should be used to just remove group photo.

func (*Bot) DeleteGroupStickerSet 

func (b *Bot) DeleteGroupStickerSet(chat *Chat) error

DeleteGroupStickerSet should be used to just remove group sticker set.

func (*Bot) Download 

func (b *Bot) Download(f *File, localFilename string) error

Download saves the file from Telegram servers locally.

Maximum file size to download is 20 MB.

func (*Bot) Edit 

func (b *Bot) Edit(message Editable, what interface{}, options ...interface{}) (*Message, error)

Edit is magic, it lets you change already sent message.

Use cases: 

b.Edit(msg, msg.Text, newMarkup)
b.Edit(msg, "new <b>text</b>", tb.ModeHTML)

// Edit live location:
b.Edit(liveMsg, tb.Location{42.1337, 69.4242})

func (*Bot) EditCaption 

func (b *Bot) EditCaption(originalMsg Editable, caption string) (*Message, error)

EditCaption used to edit already sent photo caption with known recepient and message id.

On success, returns edited message object

func (*Bot) FileByID 

func (b *Bot) FileByID(fileID string) (File, error)

FileByID returns full file object including File.FilePath, allowing you to download the file from the server.

Usually, Telegram-provided File objects miss FilePath so you might need to perform an additional request to fetch them.

func (*Bot) FileURLByID 

func (b *Bot) FileURLByID(fileID string) (string, error)

FileURLByID returns direct url for files using FileId which you can get from File object

func (*Bot) Forward 

func (b *Bot) Forward(to Recipient, what *Message, options ...interface{}) (*Message, error)

Forward behaves just like Send() but of all options it only supports Silent (see Bots API).

This function will panic upon unsupported payloads and options! 

func (b *Bot) GetInviteLink(chat *Chat) (string, error)

GetInviteLink should be used to export chat's invite link.

func (*Bot) Handle 

func (b *Bot) Handle(endpoint interface{}, handler interface{})

Handle lets you set the handler for some command name or one of the supported endpoints.

Example: 

b.handle("/help", func (m *tb.Message) {})
b.handle(tb.OnEdited, func (m *tb.Message) {})
b.handle(tb.OnQuery, func (q *tb.Query) {})

// make a hook for one of your preserved (by-pointer)
// inline buttons.
b.handle(&inlineButton, func (c *tb.Callback) {})

func (*Bot) Leave 

func (b *Bot) Leave(chat *Chat) error

Leave makes bot leave a group, supergroup or channel.

func (*Bot) Len 

func (b *Bot) Len(chat *Chat) (int, error)

Len return the number of members in a chat.

func (*Bot) Notify 

func (b *Bot) Notify(recipient Recipient, action ChatAction) error

Notify updates the chat action for recipient.

Chat action is a status message that recipient would see where you typically see "Harry is typing" status message. The only difference is that bots' chat actions live only for 5 seconds and die just once the client recieves a message from the bot.

Currently, Telegram supports only a narrow range of possible actions, these are aligned as constants of this package.

func (*Bot) Pin 

func (b *Bot) Pin(message Editable, options ...interface{}) error

Use this method to pin a message in a supergroup or a channel.

It supports telebot.Silent option.

func (*Bot) ProfilePhotosOf 

func (b *Bot) ProfilePhotosOf(user *User) ([]Photo, error)

ProfilePhotosOf return list of profile pictures for a user.

func (*Bot) Promote 

func (b *Bot) Promote(chat *Chat, member *ChatMember) error

Promote lets you update member's admin rights, such as:

  • can change info
  • can post messages
  • can edit messages
  • can delete messages
  • can invite users
  • can restrict members
  • can pin messages
  • can promote members

func (*Bot) Raw 

func (b *Bot) Raw(method string, payload interface{}) ([]byte, error)

Raw lets you call any method of Bot API manually.

func (*Bot) Reply 

func (b *Bot) Reply(to *Message, what interface{}, options ...interface{}) (*Message, error)

Reply behaves just like Send() with an exception of "reply-to" indicator.

func (*Bot) Respond 

func (b *Bot) Respond(callback *Callback, responseOptional ...*CallbackResponse) error

Respond sends a response for a given callback query. A callback can only be responded to once, subsequent attempts to respond to the same callback will result in an error.

Example: 

bot.Respond(c)
bot.Respond(c, response)

func (*Bot) Restrict 

func (b *Bot) Restrict(chat *Chat, member *ChatMember) error

Restrict let's you restrict a subset of member's rights until member.RestrictedUntil, such as:

  • can send messages
  • can send media
  • can send other
  • can add web page previews

func (*Bot) Send 

func (b *Bot) Send(to Recipient, what interface{}, options ...interface{}) (*Message, error)

Send accepts 2+ arguments, starting with destination chat, followed by some Sendable (or string!) and optional send options.

Note: since most arguments are of type interface{}, make sure to pass 

them by-pointer, NOT by-value, which will result in a panic.

What is a send option exactly? It can be one of the following types:

  • *SendOptions (the actual object accepted by Telegram API)
  • *ReplyMarkup (a component of SendOptions)
  • Option (a shorcut flag for popular options)
  • ParseMode (HTML, Markdown, etc)

This function will panic upon unsupported payloads and options!

func (*Bot) SendAlbum 

func (b *Bot) SendAlbum(to Recipient, a Album, options ...interface{}) ([]Message, error)

SendAlbum is used when sending multiple instances of media as a single message (so-called album).

From all existing options, it only supports telebot.Silent.

func (*Bot) SetGroupDescription 

func (b *Bot) SetGroupDescription(chat *Chat, description string) error

SetGroupDescription should be used to update group title.

func (*Bot) SetGroupPhoto 

func (b *Bot) SetGroupPhoto(chat *Chat, p *Photo) error

SetGroupPhoto should be used to update group photo.

func (*Bot) SetGroupStickerSet 

func (b *Bot) SetGroupStickerSet(chat *Chat, setName string) error

SetGroupStickerSet should be used to update group's group sticker set.

func (*Bot) SetGroupTitle 

func (b *Bot) SetGroupTitle(chat *Chat, newTitle string) error

SetChatTitle should be used to update group title.

func (*Bot) Start 

func (b *Bot) Start()

Start brings bot into motion by consuming incoming updates (see Bot.Updates channel).

func (*Bot) Stop 

func (b *Bot) Stop()

Stop gracefully shuts the poller down.

func (*Bot) StopLiveLocation 

func (b *Bot) StopLiveLocation(message Editable, options ...interface{}) (*Message, error)

StopLiveLocation should be called to stop broadcasting live message location before Location.LivePeriod expires.

It supports telebot.ReplyMarkup.

func (*Bot) Unban 

func (b *Bot) Unban(chat *Chat, user *User) error

Unban will unban user from chat, who would have thought eh?

func (*Bot) Unpin 

func (b *Bot) Unpin(chat *Chat) error

Use this method to unpin a message in a supergroup or a channel.

It supports telebot.Silent option.

type Callback 

type Callback struct {
	ID string `json:"id"`

	// For message sent to channels, Sender may be empty
	Sender *User `json:"from"`

	// Message will be set if the button that originated the query
	// was attached to a message sent by a bot.
	Message *Message `json:"message"`

	// MessageID will be set if the button was attached to a message
	// sent via the bot in inline mode.
	MessageID string `json:"inline_message_id"`

	// Data associated with the callback button. Be aware that
	// a bad client can send arbitrary data in this field.
	Data string `json:"data"`
}

Callback object represents a query from a callback button in an inline keyboard.

type CallbackEndpoint 

type CallbackEndpoint interface {
	CallbackUnique() string
}

CallbackEndpoint is an interface any element capable of responding to a callback `\f<unique>`.

type CallbackResponse 

type CallbackResponse struct {
	// The ID of the callback to which this is a response.
	//
	// Note: Telebot sets this field automatically!
	CallbackID string `json:"callback_query_id"`

	// Text of the notification. If not specified, nothing will be
	// shown to the user.
	Text string `json:"text,omitempty"`

	// (Optional) If true, an alert will be shown by the client instead
	// of a notification at the top of the chat screen. Defaults to false.
	ShowAlert bool `json:"show_alert,omitempty"`

	// (Optional) URL that will be opened by the user's client.
	// If you have created a Game and accepted the conditions via
	// @BotFather, specify the URL that opens your game.
	//
	// Note: this will only work if the query comes from a game
	// callback button. Otherwise, you may use deep-linking:
	// https://telegram.me/your_bot?start=XXXX
	URL string `json:"url,omitempty"`
}

CallbackResponse builds a response to a Callback query.

See also: https://core.telegram.org/bots/api#answerCallbackQuery

type Chat 

type Chat struct {
	ID int64 `json:"id"`

	// See telebot.ChatType and consts.
	Type ChatType `json:"type"`

	// Won't be there for ChatPrivate.
	Title string `json:"title"`

	FirstName string `json:"first_name"`
	LastName  string `json:"last_name"`
	Username  string `json:"username"`
}

Chat object represents a Telegram user, bot, group or a channel.

func (*Chat) Recipient 

func (c *Chat) Recipient() string

Recipient returns chat ID (see Recipient interface).

type ChatAction 

type ChatAction string

ChatAction is a client-side status indicating bot activity. 

const (
	Typing            ChatAction = "typing"
	UploadingPhoto    ChatAction = "upload_photo"
	UploadingVideo    ChatAction = "upload_video"
	UploadingAudio    ChatAction = "upload_audio"
	UploadingDocument ChatAction = "upload_document"
	UploadingVNote    ChatAction = "upload_video_note"
	RecordingVideo    ChatAction = "record_video"
	RecordingAudio    ChatAction = "record_audio"
	FindingLocation   ChatAction = "find_location"
)

type ChatMember 

type ChatMember struct {
	Rights

	User *User        `json:"user"`
	Role MemberStatus `json:"status"`

	// Date when restrictions will be lifted for the user, unix time.
	//
	// If user is restricted for more than 366 days or less than
	// 30 seconds from the current time, they are considered to be
	// restricted forever.
	//
	// Use tb.Forever().
	//
	RestrictedUntil int64 `json:"until_date,omitempty"`
}

ChatMember object represents information about a single chat member.

type ChatType 

type ChatType string

ChatType represents one of the possible chat types. 

const (
	ChatPrivate    ChatType = "private"
	ChatGroup      ChatType = "group"
	ChatSuperGroup ChatType = "supergroup"
	ChatChannel    ChatType = "channel"
)

type Contact 

type Contact struct {
	PhoneNumber string `json:"phone_number"`
	FirstName   string `json:"first_name"`

	// (Optional)
	LastName string `json:"last_name"`
	UserID   int    `json:"user_id,omitempty"`
}

Contact object represents a contact to Telegram user

type ContactResult 

type ContactResult struct {
	ResultBase

	// Contact's phone number.
	PhoneNumber string `json:"phone_number"`

	// Contact's first name.
	FirstName string `json:"first_name"`

	// Optional. Contact's last name.
	LastName string `json:"last_name,omitempty"`

	// Optional. URL of the thumbnail for the result.
	ThumbURL string `json:"thumb_url,omitempty"`
}

ContentResult represents a contact with a phone number. See also: https://core.telegram.org/bots/api#inlinequeryresultcontact

type Document 

type Document struct {
	File

	// Original filename as defined by sender.
	FileName string `json:"file_name"`

	// (Optional)
	Thumbnail *Photo `json:"thumb,omitempty"`
	Caption   string `json:"caption,omitempty"`
	MIME      string `json:"mime_type"`
}

Document object represents a general file (as opposed to Photo or Audio). Telegram users can send files of any type of up to 1.5 GB in size.

func (*Document) Send 

func (d *Document) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type DocumentResult 

type DocumentResult struct {
	ResultBase

	// Title for the result.
	Title string `json:"title"`

	// A valid URL for the file
	URL string `json:"document_url"`

	// Mime type of the content of the file, either “application/pdf” or
	// “application/zip”.
	MIME string `json:"mime_type"`

	// Optional. Caption of the document to be sent, 0-200 characters.
	Caption string `json:"caption,omitempty"`

	// Optional. Short description of the result.
	Description string `json:"description,omitempty"`

	// Optional. URL of the thumbnail (jpeg only) for the file.
	ThumbURL string `json:"thumb_url,omitempty"`

	// If Cache != "", it'll be used instead
	Cache string `json:"document_file_id,omitempty"`
}

DocumentResult represents a link to a file. See also: https://core.telegram.org/bots/api#inlinequeryresultdocument

type Editable 

type Editable interface {
	// MessageSig is a "message signature".
	//
	// For inline messages, return chatID = 0.
	MessageSig() (messageID int, chatID int64)
}

Editable is an interface for all objects that provide "message signature", a pair of 32-bit message ID and 64-bit chat ID, both required for edit operations.

Use case: DB model struct for messages to-be edited with, say two collums: msg_id,chat_id could easily implement MessageSig() making instances of stored messages editable.

type EntityType 

type EntityType string

EntityType is a MessageEntity type. 

const (
	EntityMention   EntityType = "mention"
	EntityTMention  EntityType = "text_mention"
	EntityHashtag   EntityType = "hashtag"
	EntityCommand   EntityType = "bot_command"
	EntityURL       EntityType = "url"
	EntityEmail     EntityType = "email"
	EntityBold      EntityType = "bold"
	EntityItalic    EntityType = "italic"
	EntityCode      EntityType = "code"
	EntityCodeBlock EntityType = "pre"
	EntityTextLink  EntityType = "text_link"
)

type File 

type File struct {
	FileID   string `json:"file_id"`
	FileSize int    `json:"file_size"`

	// file on telegram server https://core.telegram.org/bots/api#file
	FilePath string `json:"file_path"`

	// file on local file system.
	FileLocal string `json:"file_local"`

	// file on the internet
	FileURL string `json:"file_url"`
}

File object represents any sort of file.

func FromDisk 

func FromDisk(filename string) File

FromDisk constructs a new local (on-disk) file object.

Note, it returns File, not *File for a very good reason: in telebot, File is pretty much an embeddable struct, so upon uploading media you'll need to set embedded File with something. NewFile() returning File makes it a one-liner. 

photo := &tb.Photo{File: tb.FromDisk("chicken.jpg")}

func FromURL 

func FromURL(url string) File

FromURL constructs a new file on provided HTTP URL.

Note, it returns File, not *File for a very good reason: in telebot, File is pretty much an embeddable struct, so upon uploading media you'll need to set embedded File with something. NewFile() returning File makes it a one-liner. 

photo := &tb.Photo{File: tb.FromURL("https://site.com/picture.jpg")}

func (*File) InCloud 

func (f *File) InCloud() bool

InCloud tells whether the file is present on Telegram servers.

func (*File) OnDisk 

func (f *File) OnDisk() bool

OnDisk will return true if file is present on disk.

type GifResult 

type GifResult struct {
	ResultBase

	// A valid URL for the GIF file. File size must not exceed 1MB.
	URL string `json:"gif_url"`

	// Optional. Width of the GIF.
	Width int `json:"gif_width,omitempty"`

	// Optional. Height of the GIF.
	Height int `json:"gif_height,omitempty"`

	// Optional. Title for the result.
	Title string `json:"title,omitempty"`

	// Optional. Caption of the GIF file to be sent, 0-200 characters.
	Caption string `json:"caption,omitempty"`

	// URL of the static thumbnail for the result (jpeg or gif).
	ThumbURL string `json:"thumb_url"`

	// If Cache != "", it'll be used instead
	Cache string `json:"gif_file_id,omitempty"`
}

GifResult represents a link to an animated GIF file. See also: https://core.telegram.org/bots/api#inlinequeryresultgif

type InlineButton 

type InlineButton struct {
	// Unique slagish name for this kind of button,
	// try to be as specific as possible.
	//
	// It will be used as a callback endpoint.
	Unique string `json:"unique,omitempty"`

	Text        string `json:"text"`
	URL         string `json:"url,omitempty"`
	Data        string `json:"callback_data,omitempty"`
	InlineQuery string `json:"switch_inline_query,omitempty"`

	Action func(*Callback) `json:"-"`
}

InlineButton represents a button displayed in the message.

func (*InlineButton) CallbackUnique 

func (t *InlineButton) CallbackUnique() string

CallbackUnique returns InlineButto.Unique.

type InlineKeyboardMarkup 

type InlineKeyboardMarkup struct {
	// Array of button rows, each represented by
	// an Array of KeyboardButton objects.
	InlineKeyboard [][]InlineButton `json:"inline_keyboard,omitempty"`
}

InlineKeyboardMarkup represents an inline keyboard that appears right next to the message it belongs to.

type InputContactMessageContent 

type InputContactMessageContent struct {
	// Contact's phone number.
	PhoneNumber string `json:"phone_number"`

	// Contact's first name.
	FirstName string `json:"first_name"`

	// Optional. Contact's last name.
	LastName string `json:"last_name,omitempty"`
}

InputContactMessageContent represents the content of a contact message to be sent as the result of an inline query. See also: https://core.telegram.org/bots/api#inputcontactmessagecontent

func (*InputContactMessageContent) IsInputMessageContent 

func (input *InputContactMessageContent) IsInputMessageContent() bool

type InputLocationMessageContent 

type InputLocationMessageContent struct {
	Lat float32 `json:"latitude"`
	Lng float32 `json:"longitude"`
}

InputLocationMessageContent represents the content of a location message to be sent as the result of an inline query. See also: https://core.telegram.org/bots/api#inputlocationmessagecontent

func (*InputLocationMessageContent) IsInputMessageContent 

func (input *InputLocationMessageContent) IsInputMessageContent() bool

type InputMedia 

type InputMedia interface {
	// As some files must be uploaded (instead of referencing)
	// outer layers of Telebot require it.
	MediaFile() *File
}

InputMedia is a generic type for all kinds of media you can put into an album.

type InputMessageContent 

type InputMessageContent interface {
	IsInputMessageContent() bool
}

InputMessageContent objects represent the content of a message to be sent as a result of an inline query. See also: https://core.telegram.org/bots/api#inputmessagecontent

type InputTextMessageContent 

type InputTextMessageContent struct {
	// Text of the message to be sent, 1-4096 characters.
	Text string `json:"message_text"`

	// Optional. Send Markdown or HTML, if you want Telegram apps to show
	// bold, italic, fixed-width text or inline URLs in your bot's message.
	ParseMode string `json:"parse_mode,omitempty"`

	// Optional. Disables link previews for links in the sent message.
	DisablePreview bool `json:"disable_web_page_preview"`
}

InputTextMessageContent represents the content of a text message to be sent as the result of an inline query. See also: https://core.telegram.org/bots/api#inputtextmessagecontent

func (*InputTextMessageContent) IsInputMessageContent 

func (input *InputTextMessageContent) IsInputMessageContent() bool

type InputVenueMessageContent 

type InputVenueMessageContent struct {
	Lat float32 `json:"latitude"`
	Lng float32 `json:"longitude"`

	// Name of the venue.
	Title string `json:"title"`

	// Address of the venue.
	Address string `json:"address"`

	// Optional. Foursquare identifier of the venue, if known.
	FoursquareID string `json:"foursquare_id,omitempty"`
}

InputVenueMessageContent represents the content of a venue message to be sent as the result of an inline query. See also: https://core.telegram.org/bots/api#inputvenuemessagecontent

func (*InputVenueMessageContent) IsInputMessageContent 

func (input *InputVenueMessageContent) IsInputMessageContent() bool

type Location 

type Location struct {
	// Latitude
	Lat float32 `json:"latitude"`
	// Longitude
	Lng float32 `json:"longitude"`

	// Period in seconds for which the location will be updated
	// (see Live Locations, should be between 60 and 86400.)
	LivePeriod int `json:"live_period,omitempty"`
}

Location object represents geographic position.

func (*Location) Send 

func (x *Location) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type LocationResult 

type LocationResult struct {
	ResultBase

	Location

	// Location title.
	Title string `json:"title"`

	// Optional. Url of the thumbnail for the result.
	ThumbURL string `json:"thumb_url,omitempty"`
}

LocationResult represents a location on a map. See also: https://core.telegram.org/bots/api#inlinequeryresultlocation

type LongPoller 

type LongPoller struct {
	Timeout time.Duration

	LastUpdateID int
}

LongPoller is a classic LongPoller with timeout.

func (*LongPoller) Poll 

func (p *LongPoller) Poll(b *Bot, dest chan Update, stop chan struct{})

Poll does long polling.

type MaskFeature 

type MaskFeature string

MaskFeature defines sticker mask position. 

const (
	FeatureForehead MaskFeature = "forehead"
	FeatureEyes     MaskFeature = "eyes"
	FeatureMouth    MaskFeature = "mouth"
	FeatureChin     MaskFeature = "chin"
)

type MaskPosition 

type MaskPosition struct {
	Feature MaskFeature `json:"point"`
	XShift  float32     `json:"x_shift"`
	YShift  float32     `json:"y_shift"`
	Scale   float32     `json:"scale"`
}

MaskPosition describes the position on faces where a mask should be placed by default.

type MemberStatus 

type MemberStatus string

MemberStatus is one's chat status 

const (
	Creator       MemberStatus = "creator"
	Administrator MemberStatus = "administrator"
	Member        MemberStatus = "member"
	Restricted    MemberStatus = "restricted"
	Left          MemberStatus = "left"
	Kicked        MemberStatus = "kicked"
)

type Message 

type Message struct {
	ID int `json:"message_id"`

	// For message sent to channels, Sender will be nil
	Sender *User `json:"from"`

	// Unixtime, use Message.Time() to get time.Time
	Unixtime int64 `json:"date"`

	// Conversation the message belongs to.
	Chat *Chat `json:"chat"`

	// For forwarded messages, sender of the original message.
	OriginalSender *User `json:"forward_from"`

	// For forwarded messages, chat of the original message when
	// forwarded from a channel.
	OriginalChat *Chat `json:"forward_from_chat"`

	// For forwarded messages, unixtime of the original message.
	OriginalUnixtime int `json:"forward_date"`

	// For replies, ReplyTo represents the original message.
	//
	// Note that the Message object in this field will not
	// contain further ReplyTo fields even if it
	// itself is a reply.
	ReplyTo *Message `json:"reply_to_message"`

	// (Optional) Time of last edit in Unix
	LastEdit int64 `json:"edit_date"`

	// AlbumID is the unique identifier of a media message group
	// this message belongs to.
	AlbumID string `json:"media_group_id"`

	// Author signature (in channels).
	Signature string `json:"author_signature"`

	// For a text message, the actual UTF-8 text of the message.
	Text string `json:"text"`

	// For registered commands, will contain the string payload:
	//
	// Ex: `/command <payload>` or `/command@botname <payload>`
	Payload string `json:"-"`

	// For text messages, special entities like usernames, URLs, bot commands,
	// etc. that appear in the text.
	Entities []MessageEntity `json:"entities,omitempty"`

	// Some messages containing media, may as well have a caption.
	Caption string `json:"caption,omitempty"`

	// For messages with a caption, special entities like usernames, URLs,
	// bot commands, etc. that appear in the caption.
	CaptionEntities []MessageEntity `json:"caption_entities,omitempty"`

	// For an audio recording, information about it.
	Audio *Audio `json:"audio"`

	// For a gneral file, information about it.
	Document *Document `json:"document"`

	// For a photo, all available sizes (thumbnails).
	Photo *Photo `json:"photo"`

	// For a sticker, information about it.
	Sticker *Sticker `json:"sticker"`

	// For a voice message, information about it.
	Voice *Voice `json:"voice"`

	// For a video note, information about it.
	VideoNote *VideoNote `json:"video_note"`

	// For a video, information about it.
	Video *Video `json:"video"`

	// For a contact, contact information itself.
	Contact *Contact `json:"contact"`

	// For a location, its longitude and latitude.
	Location *Location `json:"location"`

	// For a venue, information about it.
	Venue *Venue `json:"venue"`

	// For a service message, represents a user,
	// that just got added to chat, this message came from.
	//
	// Sender leads to User, capable of invite.
	//
	// UserJoined might be the Bot itself.
	UserJoined *User `json:"new_chat_member"`

	// For a service message, represents a user,
	// that just left chat, this message came from.
	//
	// If user was kicked, Sender leads to a User,
	// capable of this kick.
	//
	// UserLeft might be the Bot itself.
	UserLeft *User `json:"left_chat_member"`

	// For a service message, represents a new title
	// for chat this message came from.
	//
	// Sender would lead to a User, capable of change.
	NewGroupTitle string `json:"new_chat_title"`

	// For a service message, represents all available
	// thumbnails of the new chat photo.
	//
	// Sender would lead to a User, capable of change.
	NewGroupPhoto *Photo `json:"new_chat_photo"`

	// For a service message, new members that were added to
	// the group or supergroup and information about them
	// (the bot itself may be one of these members).
	UsersJoined []User `json:"new_chat_members"`

	// For a service message, true if chat photo just
	// got removed.
	//
	// Sender would lead to a User, capable of change.
	GroupPhotoDeleted bool `json:"delete_chat_photo"`

	// For a service message, true if group has been created.
	//
	// You would recieve such a message if you are one of
	// initial group chat members.
	//
	// Sender would lead to creator of the chat.
	GroupCreated bool `json:"group_chat_created"`

	// For a service message, true if super group has been created.
	//
	// You would recieve such a message if you are one of
	// initial group chat members.
	//
	// Sender would lead to creator of the chat.
	SuperGroupCreated bool `json:"supergroup_chat_created"`

	// For a service message, true if channel has been created.
	//
	// You would recieve such a message if you are one of
	// initial channel administrators.
	//
	// Sender would lead to creator of the chat.
	ChannelCreated bool `json:"channel_chat_created"`

	// For a service message, the destination (super group) you
	// migrated to.
	//
	// You would recieve such a message when your chat has migrated
	// to a super group.
	//
	// Sender would lead to creator of the migration.
	MigrateTo int64 `json:"migrate_to_chat_id"`

	// For a service message, the Origin (normal group) you migrated
	// from.
	//
	// You would recieve such a message when your chat has migrated
	// to a super group.
	//
	// Sender would lead to creator of the migration.
	MigrateFrom int64 `json:"migrate_from_chat_id"`

	// Specified message was pinned. Note that the Message object
	// in this field will not contain further ReplyTo fields even
	// if it is itself a reply.
	PinnedMessage *Message `json:"pinned_message"`
}

Message object represents a message.

func (*Message) FromChannel 

func (m *Message) FromChannel() bool

FromChannel returns true, if message came from a channel.

func (*Message) FromGroup 

func (m *Message) FromGroup() bool

FromGroup returns true, if message came from a group OR a super group.

func (*Message) IsForwarded 

func (m *Message) IsForwarded() bool

IsForwarded says whether message is forwarded copy of another message or not.

func (*Message) IsReply 

func (m *Message) IsReply() bool

IsReply says whether message is a reply to another message.

func (*Message) IsService 

func (m *Message) IsService() bool

IsService returns true, if message is a service message, returns false otherwise.

Service messages are automatically sent messages, which typically occur on some global action. For instance, when anyone leaves the chat or chat title changes.

func (*Message) LastEdited 

func (m *Message) LastEdited() time.Time

LastEdited returns time.Time of last edit.

func (*Message) MessageSig 

func (m *Message) MessageSig() (int, int64)

MessageSig satisfies Editable interface (see Editable.)

func (*Message) Private 

func (m *Message) Private() bool

Private returns true, if it's a personal message.

func (*Message) Time 

func (m *Message) Time() time.Time

Time returns the moment of message creation in local time.

type MessageEntity 

type MessageEntity struct {
	// Specifies entity type.
	Type EntityType `json:"type"`

	// Offset in UTF-16 code units to the start of the entity.
	Offset int `json:"offset"`

	// Length of the entity in UTF-16 code units.
	Length int `json:"length"`

	// (Optional) For EntityTextLink entity type only.
	//
	// URL will be opened after user taps on the text.
	URL string `json:"url,omitempty"`

	// (Optional) For EntityTMention entity type only.
	User *User `json:"user,omitempty"`
}

MessageEntity object represents "special" parts of text messages, including hashtags, usernames, URLs, etc.

type MiddlewarePoller 

type MiddlewarePoller struct {
	Capacity int // Default: 1
	Poller   Poller
	Filter   func(*Update) bool
}

MiddlewarePoller is a special kind of poller that acts like a filter for updates. It could be used for spam handling, banning or whatever.

For heavy middleware, use increased capacity.

func NewMiddlewarePoller 

func NewMiddlewarePoller(original Poller, filter func(*Update) bool) *MiddlewarePoller

NewMiddlewarePoller wait for it... constructs a new middleware poller.

func (*MiddlewarePoller) Poll 

func (p *MiddlewarePoller) Poll(b *Bot, dest chan Update, stop chan struct{})

Poll sieves updates through middleware filter.

type Mpeg4GifResult 

type Mpeg4GifResult struct {
	ResultBase

	// A valid URL for the MP4 file.
	URL string `json:"mpeg4_url"`

	// Optional. Video width.
	Width int `json:"mpeg4_width,omitempty"`

	// Optional. Video height.
	Height int `json:"mpeg4_height,omitempty"`

	// URL of the static thumbnail (jpeg or gif) for the result.
	ThumbURL string `json:"thumb_url,omitempty"`

	// Optional. Title for the result.
	Title string `json:"title,omitempty"`

	// Optional. Caption of the MPEG-4 file to be sent, 0-200 characters.
	Caption string `json:"caption,omitempty"`

	// If Cache != "", it'll be used instead
	Cache string `json:"mpeg4_file_id,omitempty"`
}

ResultMpeg4Gif represents a link to a video animation (H.264/MPEG-4 AVC video without sound). See also: https://core.telegram.org/bots/api#inlinequeryresultmpeg4gif

type Option 

type Option int

Option is a shorcut flag type for certain message features (so-called options). It means that instead of passing fully-fledged SendOptions* to Send(), you can use these flags instead.

Supported options are defined as iota-constants. 

const (
	// NoPreview = SendOptions.DisableWebPagePreview
	NoPreview Option = iota

	// Silent = SendOptions.DisableNotification
	Silent

	// ForceReply = ReplyMarkup.ForceReply
	ForceReply

	// OneTimeKeyboard = ReplyMarkup.OneTimeKeyboard
	OneTimeKeyboard
)

type ParseMode 

type ParseMode string

ParseMode determines the way client applications treat the text of the message 

const (
	ModeDefault  ParseMode = ""
	ModeMarkdown ParseMode = "Markdown"
	ModeHTML     ParseMode = "HTML"
)

type Photo 

type Photo struct {
	File

	Width  int `json:"width"`
	Height int `json:"height"`

	// (Optional)
	Caption string `json:"caption,omitempty"`
}

Photo object represents a single photo file.

func (*Photo) MediaFile 

func (p *Photo) MediaFile() *File

MediaFile returns &Photo.File

func (*Photo) Send 

func (p *Photo) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

func (*Photo) UnmarshalJSON 

func (p *Photo) UnmarshalJSON(jsonStr []byte) error

UnmarshalJSON is custom unmarshaller required to abstract away the hassle of treating different thumbnail sizes. Instead, Telebot chooses the hi-res one and just sticks to it.

I really do find it a beautiful solution.

type PhotoResult 

type PhotoResult struct {
	ResultBase

	// A valid URL of the photo. Photo must be in jpeg format.
	// Photo size must not exceed 5MB.
	URL string `json:"photo_url"`

	// Optional. Width of the photo.
	Width int `json:"photo_width,omitempty"`

	// Optional. Height of the photo.
	Height int `json:"photo_height,omitempty"`

	// Optional. Title for the result.
	Title string `json:"title,omitempty"`

	// Optional. Short description of the result.
	Description string `json:"description,omitempty"`

	// Optional. Caption of the photo to be sent, 0-200 characters.
	Caption string `json:"caption,omitempty"`

	// URL of the thumbnail for the photo.
	ThumbURL string `json:"thumb_url"`

	// If Cache != "", it'll be used instead
	Cache string `json:"photo_file_id,omitempty"`
}

ResultResult represents a link to a photo. See also: https://core.telegram.org/bots/api#inlinequeryresultphoto

type Poller 

type Poller interface {
	// Poll is supposed to take the bot object
	// subscription channel and start polling
	// for Updates immediately.
	//
	// Poller must listen for stop constantly and close
	// it as soon as it's done polling.
	Poll(b *Bot, updates chan Update, stop chan struct{})
}

Poller is a provider of Updates.

All pollers must implement Poll(), which accepts bot pointer and subscription channel and start polling synchronously straight away.

type Query 

type Query struct {
	// Unique identifier for this query.
	ID string `json:"id"`

	// Sender.
	From User `json:"from"`

	// Sender location, only for bots that request user location.
	Location *Location `json:"location"`

	// Text of the query (up to 512 characters).
	Text string `json:"query"`

	// Offset of the results to be returned, can be controlled by the bot.
	Offset string `json:"offset"`
}

Query is an incoming inline query. When the user sends an empty query, your bot could return some default or trending results.

type QueryResponse 

type QueryResponse struct {
	// The ID of the query to which this is a response.
	//
	// Note: Telebot sets this field automatically!
	QueryID string `json:"inline_query_id"`

	// The results for the inline query.
	Results Results `json:"results"`

	// (Optional) The maximum amount of time in seconds that the result
	// of the inline query may be cached on the server.
	CacheTime int `json:"cache_time,omitempty"`

	// (Optional) Pass True, if results may be cached on the server side
	// only for the user that sent the query. By default, results may
	// be returned to any user who sends the same query.
	IsPersonal bool `json:"is_personal"`

	// (Optional) Pass the offset that a client should send in the next
	// query with the same text to receive more results. Pass an empty
	// string if there are no more results or if you don‘t support
	// pagination. Offset length can’t exceed 64 bytes.
	NextOffset string `json:"next_offset"`

	// (Optional) If passed, clients will display a button with specified
	// text that switches the user to a private chat with the bot and sends
	// the bot a start message with the parameter switch_pm_parameter.
	SwitchPMText string `json:"switch_pm_text,omitempty"`

	// (Optional) Parameter for the start message sent to the bot when user
	// presses the switch button.
	SwitchPMParameter string `json:"switch_pm_parameter,omitempty"`
}

QueryResponse builds a response to an inline Query. See also: https://core.telegram.org/bots/api#answerinlinequery

type Recipient 

type Recipient interface {
	// Must return legit Telegram chat_id or username
	Recipient() string
}

Recipient is any possible endpoint you can send messages to: either user, group or a channel.

type ReplyButton 

type ReplyButton struct {
	Text string `json:"text"`

	Contact  bool `json:"request_contact,omitempty"`
	Location bool `json:"request_location,omitempty"`

	Action func(*Callback) `json:"-"`
}

ReplyButton represents a button displayed in reply-keyboard.

Set either Contact or Location to true in order to request sensitive info, such as user's phone number or current location. (Available in private chats only.)

func (*ReplyButton) CallbackUnique 

func (t *ReplyButton) CallbackUnique() string

CallbackUnique returns KeyboardButton.Text.

type ReplyMarkup 

type ReplyMarkup struct {
	// InlineKeyboard is a grid of InlineButtons displayed in the message.
	//
	// Note: DO NOT confuse with ReplyKeyboard and other keyboard properties!
	InlineKeyboard [][]InlineButton `json:"inline_keyboard,omitempty"`

	// ReplyKeyboard is a grid, consisting of keyboard buttons.
	//
	// Note: you don't need to set HideCustomKeyboard field to show custom keyboard.
	ReplyKeyboard [][]ReplyButton `json:"keyboard,omitempty"`

	// ForceReply forces Telegram clients to display
	// a reply interface to the user (act as if the user
	// has selected the bot‘s message and tapped "Reply").
	ForceReply bool `json:"force_reply,omitempty"`

	// Requests clients to resize the keyboard vertically for optimal fit
	// (e.g. make the keyboard smaller if there are just two rows of buttons).
	//
	// Defaults to false, in which case the custom keyboard is always of the
	// same height as the app's standard keyboard.
	ResizeReplyKeyboard bool `json:"resize_keyboard,omitempty"`

	// Requests clients to hide the reply keyboard as soon as it's been used.
	//
	// Defaults to false.
	OneTimeKeyboard bool `json:"one_time_keyboard,omitempty"`

	// Use this param if you want to force reply from
	// specific users only.
	//
	// Targets:
	// 1) Users that are @mentioned in the text of the Message object;
	// 2) If the bot's message is a reply (has SendOptions.ReplyTo),
	//       sender of the original message.
	Selective bool `json:"selective,omitempty"`
}

ReplyMarkup controls two convenient options for bot-user communications such as reply keyboard and inline "keyboard" (a grid of buttons as a part of the message).

type Result 

type Result interface {
	ResultID() string
	SetResultID(string)
}

Result represents one result of an inline query.

type ResultBase 

type ResultBase struct {
	// Unique identifier for this result, 1-64 Bytes.
	// If left unspecified, a 64-bit FNV-1 hash will be calculated
	ID string `json:"id",hash:"ignore"`

	// Ignore. This field gets set automatically.
	Type string `json:"type",hash:"ignore"`

	// Optional. Content of the message to be sent.
	Content *InputMessageContent `json:"input_message_content,omitempty"`

	// Optional. Inline keyboard attached to the message.
	ReplyMarkup *InlineKeyboardMarkup `json:"reply_markup,omitempty"`
}

ResultBase must be embedded into all IQRs.

func (*ResultBase) ResultID 

func (r *ResultBase) ResultID() string

ResultID returns ResultBase.ID.

func (*ResultBase) SetResultID 

func (r *ResultBase) SetResultID(id string)

SetResultID sets ResultBase.ID.

type Results 

type Results []Result

Results is a slice wrapper for convenient marshalling.

func (Results) MarshalJSON 

func (results Results) MarshalJSON() ([]byte, error)

MarshalJSON makes sure IQRs have proper IDs and Type variables set.

If ID of some result appears empty, it gets set to a new hash. JSON-specific Type gets infered from the actual (specific) IQR type.

type Rights 

type Rights struct {
	CanBeEdited        bool `json:"can_be_edited,omitempty"`             // 1
	CanChangeInfo      bool `json:"can_change_info,omitempty"`           // 2
	CanPostMessages    bool `json:"can_post_messages,omitempty"`         // 3
	CanEditMessages    bool `json:"can_edit_messages,omitempty"`         // 4
	CanDeleteMessages  bool `json:"can_delete_messages,omitempty"`       // 5
	CanInviteUsers     bool `json:"can_invite_users,omitempty"`          // 6
	CanRestrictMembers bool `json:"can_restrict_members,omitempty"`      // 7
	CanPinMessages     bool `json:"can_pin_messages,omitempty"`          // 8
	CanPromoteMembers  bool `json:"can_promote_members,omitempty"`       // 9
	CanSendMessages    bool `json:"can_send_messages,omitempty"`         // 10
	CanSendMedia       bool `json:"can_send_media_messages,omitempty"`   // 11
	CanSendOther       bool `json:"can_send_other_messages,omitempty"`   // 12
	CanAddPreviews     bool `json:"can_add_web_page_previews,omitempty"` // 13
}

Rights is a list of privileges available to chat members.

func AdminRights 

func AdminRights() Rights

AdminRights could be used to promote user to admin.

func NoRestrictions 

func NoRestrictions() Rights

NoRestrictions should be used when un-restricting or un-promoting user. 

	   member.Rights = NoRestrictions()
    bot.Restrict(chat, member)

func NoRights 

func NoRights() Rights

NoRights is the default Rights{}

type SendOptions 

type SendOptions struct {
	// If the message is a reply, original message.
	ReplyTo *Message

	// See ReplyMarkup struct definition.
	ReplyMarkup *ReplyMarkup

	// For text messages, disables previews for links in this message.
	DisableWebPagePreview bool

	// Sends the message silently. iOS users will not receive a notification, Android users will receive a notification with no sound.
	DisableNotification bool

	// ParseMode controls how client apps render your message.
	ParseMode ParseMode
}

SendOptions has most complete control over in what way the message must be sent, providing an API-complete set of custom properties and options.

Despite its power, SendOptions is rather inconvenient to use all the way through bot logic, so you might want to consider storing and re-using it somewhere or be using Option flags instead.

type Sendable 

type Sendable interface {
	Send(*Bot, Recipient, *SendOptions) (*Message, error)
}

Sendable is any object that can send itself.

This is pretty cool, since it lets bots implement custom Sendables for complex kind of media or chat objects spanning across multiple messages.

type Settings 

type Settings struct {
	// Telegram token
	Token string

	// Updates channel capacity
	Updates int // Default: 100

	// Poller is the provider of Updates.
	Poller Poller

	// Reporter is a callback function that will get called
	// on any panics recovered from endpoint handlers.
	Reporter func(error)
}

Settings represents a utility struct for passing certain properties of a bot around and is required to make bots.

type Sticker 

type Sticker struct {
	File

	Width  int `json:"width"`
	Height int `json:"height"`

	Thumbnail    *Photo        `json:"thumb,omitempty"`
	Emoji        string        `json:"emoji,omitempty"`
	SetName      string        `json:"set_name,omitempty"`
	MaskPosition *MaskPosition `json:"mask_position,omitempty"`
}

Sticker object represents a WebP image, so-called sticker.

func (*Sticker) Send 

func (s *Sticker) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type StickerResult 

type StickerResult struct {
	ResultBase

	// If Cache != "", it'll be used instead
	Cache string `json:"sticker_file_id,omitempty"`
}

StickerResult represents an inline cached sticker response.

type StoredMessage 

type StoredMessage struct {
	MessageID int   `sql:"message_id" json:"message_id"`
	ChatID    int64 `sql:"chat_id" json:"chat_id"`
}

StoredMessage is an example struct suitable for being stored in the database as-is or being embedded into a larger struct, which is often the case (you might want to store some metadata alongside, or might not.)

func (StoredMessage) MessageSig 

func (x StoredMessage) MessageSig() (int, int64)

type Update 

type Update struct {
	ID int `json:"update_id"`

	Message           *Message  `json:"message,omitempty"`
	EditedMessage     *Message  `json:"edited_message,omitempty"`
	ChannelPost       *Message  `json:"channel_post,omitempty"`
	EditedChannelPost *Message  `json:"edited_channel_post,omitempty"`
	Callback          *Callback `json:"callback_query,omitempty"`
	Query             *Query    `json:"inline_query,omitempty"`
}

Update object represents an incoming update.

type User 

type User struct {
	ID int `json:"id"`

	FirstName string `json:"first_name"`
	LastName  string `json:"last_name"`
	Username  string `json:"username"`
}

User object represents a Telegram user, bot

func (*User) Recipient 

func (u *User) Recipient() string

Recipient returns user ID (see Recipient interface).

type Venue 

type Venue struct {
	Location Location `json:"location"`
	Title    string   `json:"title"`
	Address  string   `json:"address"`

	// (Optional)
	FoursquareID string `json:"foursquare_id,omitempty"`
}

Venue object represents a venue location with name, address and optional foursquare ID.

func (*Venue) Send 

func (v *Venue) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type VenueResult 

type VenueResult struct {
	ResultBase

	Location

	// Title of the venue.
	Title string `json:"title"`

	// Address of the venue.
	Address string `json:"address"`

	// Optional. Foursquare identifier of the venue if known.
	FoursquareID string `json:"foursquare_id,omitempty"`

	// Optional. URL of the thumbnail for the result.
	ThumbURL string `json:"thumb_url,omitempty"`
}

VenueResult represents a venue. See also: https://core.telegram.org/bots/api#inlinequeryresultvenue

type Video 

type Video struct {
	File

	Width  int `json:"width"`
	Height int `json:"height"`

	Duration int `json:"duration,omitempty"`

	// (Optional)
	Caption   string `json:"caption,omitempty"`
	Thumbnail *Photo `json:"thumb,omitempty"`
	MIME      string `json:"mime_type,omitempty"`
}

Video object represents a video file.

func (*Video) MediaFile 

func (v *Video) MediaFile() *File

MediaFile returns &Video.File

func (*Video) Send 

func (v *Video) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type VideoNote 

type VideoNote struct {
	File

	// Duration of the recording in seconds as defined by sender.
	Duration int `json:"duration"`

	// (Optional)
	Thumbnail *Photo `json:"thumb,omitempty"`
}

VideoNote represents a video message (available in Telegram apps as of v.4.0).

func (*VideoNote) Send 

func (v *VideoNote) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type VideoResult 

type VideoResult struct {
	ResultBase

	// A valid URL for the embedded video player or video file.
	URL string `json:"video_url"`

	// Mime type of the content of video url, “text/html” or “video/mp4”.
	MIME string `json:"mime_type"`

	// URL of the thumbnail (jpeg only) for the video.
	ThumbURL string `json:"thumb_url"`

	// Title for the result.
	Title string `json:"title"`

	// Optional. Caption of the video to be sent, 0-200 characters.
	Caption string `json:"caption,omitempty"`

	// Optional. Video width.
	Width int `json:"video_width,omitempty"`

	// Optional. Video height.
	Height int `json:"video_height,omitempty"`

	// Optional. Video duration in seconds.
	Duration int `json:"video_duration,omitempty"`

	// Optional. Short description of the result.
	Description string `json:"description,omitempty"`

	// If Cache != "", it'll be used instead
	Cache string `json:"video_file_id,omitempty"`
}

VideoResult represents a link to a page containing an embedded video player or a video file. See also: https://core.telegram.org/bots/api#inlinequeryresultvideo

type Voice 

type Voice struct {
	File

	// Duration of the recording in seconds as defined by sender.
	Duration int `json:"duration"`

	// (Optional)
	MIME string `json:"mime_type,omitempty"`
}

Voice object represents a voice note.

func (*Voice) Send 

func (v *Voice) Send(b *Bot, to Recipient, opt *SendOptions) (*Message, error)

Send delivers media through bot b to recipient.

type VoiceResult 

type VoiceResult struct {
	ResultBase

	// A valid URL for the voice recording.
	URL string `json:"voice_url"`

	// Recording title.
	Title string `json:"title"`

	// Optional. Recording duration in seconds.
	Duration int `json:"voice_duration"`

	// If Cache != "", it'll be used instead
	Cache string `json:"voice_file_id,omitempty"`
}

VoiceResult represents a link to a voice recording in an .ogg container encoded with OPUS.

See also: https://core.telegram.org/bots/api#inlinequeryresultvoice

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