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77 lines
2.5 KiB
ReStructuredText
77 lines
2.5 KiB
ReStructuredText
.. _quickstart:
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.. currentmodule:: discord
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Quickstart
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============
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This page gives a brief introduction to the library. It assumes you have the library installed,
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if you don't check the :ref:`installing` portion.
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A Minimal Bot
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---------------
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Let's make a bot that replies to a specific message and walk you through it.
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It looks something like this:
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.. code-block:: python3
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import discord
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client = discord.Client()
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@client.event
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async def on_ready():
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print('We have logged in as {0.user}'.format(client))
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@client.event
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async def on_message(message):
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if message.author == client.user:
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return
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if message.content.startswith('$hello'):
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await message.channel.send('Hello!')
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client.run('your token here')
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Let's name this file ``example_bot.py``. Make sure not to name it ``discord.py`` as that'll conflict
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with the library.
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There's a lot going on here, so let's walk you through it step by step.
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1. The first line just imports the library, if this raises a `ModuleNotFoundError` or `ImportError`
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then head on over to :ref:`installing` section to properly install.
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2. Next, we create an instance of a :class:`Client`. This client is our connection to Discord.
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3. We then use the :meth:`Client.event` decorator to register an event. This library has many events.
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Since this library is asynchronous, we do things in a "callback" style manner.
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A callback is essentially a function that is called when something happens. In our case,
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the :func:`on_ready` event is called when the bot has finished logging in and setting things
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up and the :func:`on_message` event is called when the bot has received a message.
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4. Since the :func:`on_message` event triggers for *every* message received, we have to make
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sure that we ignore messages from ourselves. We do this by checking if the :attr:`Message.author`
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is the same as the :attr:`Client.user`.
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5. Afterwards, we check if the :class:`Message.content` starts with ``'$hello'``. If it is,
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then we reply in the channel it was used in with ``'Hello!'``.
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6. Finally, we run the bot with our login token. If you need help getting your token or creating a bot,
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look in the :ref:`discord-intro` section.
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Now that we've made a bot, we have to *run* the bot. Luckily, this is simple since this is just a
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Python script, we can run it directly.
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On Windows:
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.. code-block:: shell
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$ py -3 example_bot.py
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On other systems:
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.. code-block:: shell
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$ python3 example_bot.py
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Now you can try playing around with your basic bot.
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