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=====

Telegram Bot API Wrapper written in Elixir ([document](https://hexdocs.pm/nadia/))

## Installation
Add Nadia to your `mix.exs` dependencies:

```elixir
def deps do
  [{:nadia, "~> 0.4.3"}]
end
```
and run `$ mix deps.get`.

## Configuration

In `config/config.exs`, add your Telegram Bot token like [this](config/config.exs.example)

```elixir
config :nadia,
  token: "bot token"
```

You can also add an optional recv_timeout in seconds (defaults to 5s).
```elixir
config :nadia,
  recv_timeout: 10
```

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

```elixir
config :nadia,
  # 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:

```elixir
config :nadia,
  token: {:system, "ENVVAR_WITH_MYAPP_TOKEN", "default_value_if_needed"}
```

And then, in `mix.exs`, list `:nadia` as an application inside `application/0`:

```elixir
def application do
  [applications: [:nadia]]
end
```

Now Mix will guarantee the `:nadia` application is started before your application is started.

## Usage

### get_me

```elixir
iex> Nadia.get_me
{:ok,
 %Nadia.Model.User{first_name: "Nadia", id: 666, last_name: nil,
  username: "nadia_bot"}}
```

### get_updates

```elixir
iex> Nadia.get_updates limit: 5
{:ok, []}

iex> {:ok,
 [%Nadia.Model.Update{callback_query: nil, chosen_inline_result: nil,
   edited_message: nil, inline_query: nil,
   message: %Nadia.Model.Message{audio: nil, caption: nil,
    channel_chat_created: nil,
    chat: %Nadia.Model.Chat{first_name: "Nadia", id: 123,
     last_name: "TheBot", title: nil, type: "private", username: "nadia_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: %Nadia.Model.User{first_name: "Nadia", id: 123,
     last_name: "TheBot", username: "nadia_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

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

:ok
```

Refer to [Nadia document](https://hexdocs.pm/nadia/) and [Telegram Bot API document](https://core.telegram.org/bots/api) for more details.