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.. currentmodule:: discord
.. _guide_topic_embeds:
.. todo
- cover footer
- cover timestamp
Embeds
=======
Embeds are a fundamental part of Discord's message format.
They allow you to embed rich content into your messages.
Discord typically uses embeds to display information related to links:
.. image:: /images/guide/topics/embeds/link_embed.png
:scale: 50%
Bots are also able to send embeds without any links in the message content:
.. image:: /images/guide/topics/embeds/simple_embed.png
:scale: 50%
Defining an Embed
------------------
Embeds are fairly straightforward to define in discord.py.
Let's try recreating the image above.
First, we'll need to construct a :class:`Embed` object.
.. code-block:: python3
my_embed = discord.Embed()
We should set the colour of the embed next.
Seems like it's conveniently the same colour as :meth:`Colour.purple`!
So, all we need to do is provide it to the ``colour`` parameter of the constructor.
.. code-block:: python3
:emphasize-lines: 2
my_embed = discord.Embed(
colour=discord.Colour.purple()
)
.. tip::
There is also a ``color`` parameter, and respective aliases for ``discord.Color``.
In case you prefer that spelling.
Next, we'll set the title of the embed.
Just like ``colour``, it's another parameter of the constructor, called ``title``.
.. code-block:: python3
:emphasize-lines: 3
my_embed = discord.Embed(
colour=discord.Colour.purple(),
title="Hello, World!",
)
Let's see how that looks so far if we send it.
.. code-block:: python3
await channel.send(embed=my_embed)
.. image:: /images/guide/topics/embeds/simple_embed_2.png
:scale: 38%
So close! Now, all we need to do is add the description.
.. code-block:: python3
my_embed = discord.Embed(
colour=discord.Colour.purple(),
title="Hello, World!",
description="This bot is running on discord.py!"
)
.. image:: /images/guide/topics/embeds/simple_embed_final.png
:scale: 38%
And that's it!
As you can see, the interface that discord.py provides is essentially a direct mapping of what you see in the Discord client.
To summarise, we call the constructor for :class:`Embed` and provide the following keyword arguments:
- ``colour`` to set the colour of the embed.
- ``title`` to set the title of the embed.
- ``description`` to set the description of the embed.
Let's take a look at what else we can add to an embed.
Using Embed Components
-----------------------
The :class:`Embed` class allows usage of the `factory` pattern.
.. hint::
This means that certain methods will return a modified instance of the embed class,
so you can chain method calls.
We will discover this as we go through the guide.
Markdown
~~~~~~~~~
An embed's description and fields allow you to use markdown, so
that includes **this**, *that*, and even ``this`` -- read more about it at :ref:`_guide_topic_markdown`.
Usually, in a message's content it is not possible to send hyperlinks.
However, embeds allow you to include them! So you can do little tricks like:
.. code-block:: python3
my_embed.description = """**Hello**! My name is Danny!
Check out my GitHub: [click here!](https://github.com/Rapptz)
I have a page dedicated to [`C++ Tutorials`](https://rapptz.github.io/cpptuts)!
"""
.. image:: /images/guide/topics/embeds/hyperlink_description_embed.png
:scale: 38%
.. tip::
Hyperlinks in markdown follow a specific format: ``[text](link)``.
It is also possible to add tooltips to hyperlinks, which are displayed when you hover over the hyperlink.
.. code-block:: python3
my_embed.description = """**Hello**! My name is Danny!
Check out my GitHub: [click here!](https://github.com/Rapptz "My GitHub")
I have a page dedicated to [`C++ Tutorials`](https://rapptz.github.io/cpptuts)!
"""
.. image:: /images/guide/topics/embeds/hyperlink_tooltip_description_embed.png
:scale: 38%
Fields
~~~~~~~
Fields can be used to add subsections to an embed, they can contain two articles of information; a name and a value.
Let's make an embed that tells us the weather in San Francisco.
We'll start off with the simple stuff, a colour, a title and a description.
.. code-block:: python3
my_weather_embed = discord.Embed(
colour=discord.Colour.yellow(),
title="Weather in San Francisco, CA",
description="Clear with a high of 59 degrees Fahrenheit.",
)
That should look like this:
.. image:: /images/guide/topics/embeds/field_weather_embed_1.png
:scale: 38%
Now, let's add a field that tells us the precipitation in San Francisco.
We should use :meth:`my_weather_embed.add_field() <Embed.add_field>` to add it.
.. code-block:: python3
my_weather_embed.add_field(name="Precipitation", value="2%")
Let's see what that looks like:
.. image:: /images/guide/topics/embeds/field_weather_embed_2.png
:scale: 38%
Alright! Now, let's add two more fields to tell us the humidity and wind speed.
.. code-block:: python3
my_weather_embed.add_field(name="Humidity", value="76%")
my_weather_embed.add_field(name="Wind Speed", value="4 mph")
.. image:: /images/guide/topics/embeds/field_weather_embed_3.png
:scale: 38%
Alright! Now, what happens if we try to add a fourth field...?
.. image:: /images/guide/topics/embeds/field_weather_embed_4.png
:scale: 38%
.. hint::
In the Discord client, each row of fields can contain a maximum of 3 fields.
If you wanted to, you could try using the ``inline`` keyword-only argument of :meth:`~Embed.add_field`.
This determines the positioning of the field within the embed.
By default, ``inline`` is set to ``True`` for all fields.
If it is set to ``False`` it will be displayed in a block, on its own.
Let's see what happens when we set it to ``False`` for the wind field.
.. code-block:: python3
my_weather_embeds.add_field(name="Wind", value="4 mph", inline=False)
.. image:: /images/guide/topics/embeds/inline_field_embed.png
:scale: 50%
.. note::
If you want to set ``inline`` to ``False`` for a field in the middle, such as the
``Humidity`` field, it will appear as such:
.. image:: /images/guide/topics/embeds/inline_middle_field_embed.png
:scale: 50%
Author
~~~~~~~
Embeds can also have an author.
This is a small section of information that appears at the top of the embed,
it can contain an icon, a name, and a URL, which is opened when the user clicks on the name.
.. code-block:: python3
my_weather_embed.set_author(
name="Today's Weather",
url="https://goo.gl/search/Weather+In+San+Francisco",
icon_url=bot.user.display_avatar
)
In this example, we use the :meth:`Bot.user.display_avatar <ClientUser.display_avatar>`, which is an :class:`Asset` instance, for the icon.
However, you can use any image URL for ``icon_url``.
.. image:: /images/guide/topics/embeds/author_embed.png
:scale: 50%
Images
~~~~~~~
There are two ways to add images to an embed:
- As the embed's ``image``.
- As the embed's ``thumbnail``.
We will use this `image of the Golden Gate Bridge`_ on the weather embed by calling
:meth:`my_weather_embed.set_image() <Embed.set_image>`:
.. code-block:: python3
image_url = "https://upload.wikimedia.org/wikipedia/commons/0/0c/GoldenGateBridge-001.jpg"
my_weather_embed.set_image(url=image_url)
.. _image of the Golden Gate Bridge: https://commons.wikimedia.org/wiki/Golden_Gate_Bridge#/media/File:GoldenGateBridge-001.jpg
.. image:: /images/guide/topics/embeds/image_embed.png
:scale: 50%
As seen above, when setting :attr:`Embed.image`, the provided URL will be displayed at the bottom of
the embed.
The alternative to this, is to set :attr:`Embed.thumbnail`, which would be displayed in the top right
corner of the embed.
Rather than setting the URL, we are going to attach a file for the thumbnail.
.. code-block:: python3
my_file = discord.File('./images/sunny_weather.png', 'thumbnail.png')
my_weather_embed.set_thumbnail(url="attachment://thumbnail.png")
await channel.send(embed=my_weather_embed, file=my_file)
What we do here is first retrieve the file from the local filesystem via :class:`discord.File`,
and then refer to the filename in the embed.
In this case the we provide the filename as ``thumbnail.png``,
so to refer to it, we use ``attachment://thumbnail.png``.
.. note::
``attachment://`` is a special URI scheme that Discord understands and will automatically
place the attached file as the thumbnail of the embed.
.. warning::
Make sure to provide the file with the ``file`` parameter before sending the message.