Telegraph

Modern Telegram Bot API framework based on Nadia project (document, Telegram Bot API)

Installation

Add :telegraph to your mix.exs dependencies:

def deps do
  [
    {:telegraph, "~> 0.8.2"}
  ]
end

And run $ mix deps.get.

Configuration

In config/config.exs, add your Telegram Bot token like this

config :telegraph,
  token: "bot token"

You can also add an optional recv_timeout in seconds (defaults to 5s):

config :telegraph,
  recv_timeout: 10

You can also add a proxy support:

config :telegraph,
  proxy: "http://proxy_host:proxy_port", # or {:socks5, 'proxy_host', proxy_port}
  proxy_auth: {"user", "password"},
  ssl: [versions: [:'tlsv1.2']]

You can also configure the the base url for the api if you need to for some reason:

config :telegraph,
  # Telegram API. Default: https://api.telegram.org/bot
  base_url: "http://my-own-endpoint.com/whatever/",

  # Telegram Graph API. Default: https://api.telegra.ph
  graph_base_url: "http://my-own-endpoint.com/whatever/"

Environment variables may be used as well:

config :telegraph,
  token: {:system, "ENVVAR_WITH_MYAPP_TOKEN", "default_value_if_needed"}

Usage

get_me

iex> Telegraph.get_me
{:ok,
 %Telegraph.Model.User{first_name: "Telegraph", id: 666, last_name: nil,
  username: "telegraph_bot"}}

get_updates

iex> Telegraph.get_updates limit: 5
{:ok, []}

iex> {:ok,
 [%Telegraph.Model.Update{callback_query: nil, chosen_inline_result: nil,
   edited_message: nil, inline_query: nil,
   message: %Telegraph.Model.Message{audio: nil, caption: nil,
    channel_chat_created: nil,
    chat: %Telegraph.Model.Chat{first_name: "Telegraph", id: 123,
     last_name: "TheBot", title: nil, type: "private", username: "telegraph_the_bot"},
    contact: nil, date: 1471208260, delete_chat_photo: nil, document: nil,
    edit_date: nil, entities: nil, forward_date: nil, forward_from: nil,
    forward_from_chat: nil,
    from: %Telegraph.Model.User{first_name: "Telegraph", id: 123,
     last_name: "TheBot", username: "telegraph_the_bot"}, group_chat_created: nil,
    left_chat_member: nil, location: nil, message_id: 543,
    migrate_from_chat_id: nil, migrate_to_chat_id: nil, new_chat_member: nil,
    new_chat_photo: [], new_chat_title: nil, photo: [], pinned_message: nil,
    reply_to_message: nil, sticker: nil, supergroup_chat_created: nil,
    text: "rew", venue: nil, video: nil, voice: nil}, update_id: 98765}]}

send_message

iex> case Telegraph.send_message(tlg_id, "The message text goes here") do
  {:ok, _result} ->
    :ok
  {:error, %Telegraph.Model.Error{reason: "Please wait a little"}} ->
    :wait
  end

:ok

Refer to Telegraph document and Telegram Bot API document for more details.

Copyright and License

Copyright (c) 2022 Evgenii Troinov,
Copyright (c) 2015 Yu Zhang

This library licensed under the MIT license.