|
| 1 | +Getting started. |
| 2 | +================ |
| 3 | + |
| 4 | +Developing a 3rd party. |
| 5 | +*********************** |
| 6 | + |
| 7 | +Getting started with making a 3rd party library is pretty hard. Most of the time, |
| 8 | +you'll find yourself often checking the source code and directly making changes |
| 9 | +to the library. We want to make a change to that, and additionally, make it easier |
| 10 | +for developers to find creativity in the simplicity of our overengineered product. |
| 11 | + |
| 12 | +.. warning:: |
| 13 | + |
| 14 | + If you're not familiar with the source code of the library, you should |
| 15 | + probably read the documentation first. |
| 16 | + |
| 17 | + Basing your 3rd party libraries off of our ``unstable`` branch is a bad |
| 18 | + practice as this is regarded as our development branch. Breaking changes |
| 19 | + may become common, and as a result pose a risk in affecting your 3rd party. |
| 20 | + For this reason, we recommend you use the latest PyPI release or ``stable`` |
| 21 | + branch. |
| 22 | + |
| 23 | +Installing |
| 24 | +********** |
| 25 | + |
| 26 | +Installing the external framework is a rather trivial process. You do not need |
| 27 | +to run any special installation on the library, as this comes built into our |
| 28 | +main core. However, you will need to install the dependencies involved with |
| 29 | +the library. |
| 30 | + |
| 31 | +If you do not already have this library installed, you can do with this line |
| 32 | +below: |
| 33 | + |
| 34 | +.. code-block:: bash |
| 35 | +
|
| 36 | + pip install -U discord-py-interactions |
| 37 | +
|
| 38 | +Creating the base. |
| 39 | +****************** |
| 40 | + |
| 41 | +For every official 3rd party library of interactions.py, we have a "core" for it, |
| 42 | +otherwise known as the base. This base is what we use to allow developers to easily |
| 43 | +setup their project onto PyPI and build, as well as storing additional information |
| 44 | +that bot developers can read off of for their bots. |
| 45 | + |
| 46 | +This code shows a basic example for creating the base of a 3rd party: |
| 47 | + |
| 48 | +.. code-block:: python |
| 49 | +
|
| 50 | + from interactions.ext import Base, build, Version |
| 51 | +
|
| 52 | + data = { |
| 53 | + "name": "interactions.ext.name_here" |
| 54 | + "description": "We do cool things!" |
| 55 | + "version": Version(version="0.0.1") |
| 56 | + "link": "https://example.com" |
| 57 | + } |
| 58 | + class MyThirdParty(Base): |
| 59 | + def __init__(self): |
| 60 | + super().__init__(**data) |
| 61 | +
|
| 62 | + library = MyThirdParty() |
| 63 | + build(library) |
| 64 | +
|
| 65 | +This configures the base of the library in a rather simple manner: you give the name |
| 66 | +and description of the 3rd party, as well as its own official version and link for |
| 67 | +reference. This is all that is required to build the library. The rest of the field |
| 68 | +that can be filled in are optional. You can look at the :ref:`Base class <ext.base:Core Model>` |
| 69 | +for more information. |
| 70 | + |
| 71 | +Defining a version. |
| 72 | +******************* |
| 73 | + |
| 74 | +As you may have noticed in the ``Base`` class, we have a ``Version`` class that helps |
| 75 | +define the version of the 3rd party. This is required to be written in our class for numerous reasons: |
| 76 | + |
| 77 | +- To help enforce consistency in the formatting of 3rd party versions. |
| 78 | +- To allow for easy version comparison. |
| 79 | +- Forced semantic versioning. |
| 80 | + |
| 81 | +This class is our most advanced and complicated one due to the abundant nature in emphasising |
| 82 | +a proper versioning system. We have a few options for versioning, and we have a few rules to follow. |
| 83 | + |
| 84 | +1. Major, minor and patch versions **must** be declared as either their respective key-word arguments, or under the ``version`` kwarg. |
| 85 | +2. The version should not be author-less. Every library has an author behind a version. |
| 86 | +3. The version should not be a pre-release. Pre-releases are not supported by the official PyPI. To release as alpha or beta, use the ``extend_version()`` method. |
| 87 | +4. A version cannot contain more than 1 main author. If you have multiple authors, you should label them as co-authors instead. |
| 88 | +5. An alphanumeric version can only contain one instance of its own. |
| 89 | + |
| 90 | +With these rules out of the way, let's look at a simple implementation of the ``Version`` class |
| 91 | +alongside its brother, ``VersionAuthor`` for adding authors of a version: |
| 92 | + |
| 93 | +.. code-block:: python |
| 94 | +
|
| 95 | + from interactions.ext import Version, VersionAuthor |
| 96 | +
|
| 97 | + version = Version( |
| 98 | + major=1, |
| 99 | + minor=2, |
| 100 | + patch=3, |
| 101 | + # author=VersionAuthor(name="BobDotCom"), |
| 102 | + authors=[ |
| 103 | + VersionAuthor(name="BobDotCom"), |
| 104 | + VersionAuthor(name="fl0w", shared=True), |
| 105 | + ], |
| 106 | + ) # Version(version="1.2.3") |
| 107 | + version.extend_version(beta=1) # Version(version="1.2.3-beta.1") |
| 108 | +
|
| 109 | + print(version.author) # <VersionAuthor object at 0x0000000> |
| 110 | + print(version.author.name) # BobDotCom |
| 111 | + print([author.name for author in version.authors]) # ['BobDotCom', 'fl0w'] |
| 112 | + print(version.is_alphanumeric) # True |
| 113 | +
|
| 114 | +This code example can also show you the ways of retreiving information from a version. As |
| 115 | +seen here, this is a highly versatile class. These following are the shown methods and |
| 116 | +their purposes: |
| 117 | + |
| 118 | +- The ``version`` attribute is the version string. |
| 119 | +- The ``major`` attribute is the major version number, e.g. "x.0.0" |
| 120 | +- The ``minor`` attribute is the minor version number, e.g. "0.x.0" |
| 121 | +- The ``patch`` attribute is the patch version number, e.g. "0.0.x" |
| 122 | +- The ``authors`` property method is a list of authors, regardless of if one is a co-author or not. |
| 123 | +- The ``is_alphanumeric`` property method is a boolean that indicates if the version is alphanumeric. |
| 124 | + |
| 125 | +Converting models from one to another. |
| 126 | +************************************** |
| 127 | + |
| 128 | +The term "conversion" is a gross exaggeration of what we're actually doing here. The problem |
| 129 | +that we've found with bot developers cross-referencing from different libraries is that |
| 130 | +their data models are simply different in design and structure. In order to combat against this, |
| 131 | +we have decided to create a conversion tool that will allow us to convert between models. This |
| 132 | +tool also allows for better comparison that will save the average developer many lines of code |
| 133 | +from having to be written. This is a basic example of how we "convert" these models: |
| 134 | + |
| 135 | +.. code-block:: python |
| 136 | +
|
| 137 | + from interactions.ext import Converter |
| 138 | +
|
| 139 | + ref: dict = { |
| 140 | + "hello": "world", |
| 141 | + "foo": "bar", |
| 142 | + "goodbye": "cruel world", |
| 143 | + } |
| 144 | + some_random_thing: dict = { |
| 145 | + "hi": "everyone", |
| 146 | + "foo": "bar", |
| 147 | + "spam": "eggs", |
| 148 | + } |
| 149 | +
|
| 150 | + converted = Converter(ref, some_random_thing) |
| 151 | + print(converted.difference) # {'hello': 'world', 'goodbye': 'cruel world'} |
| 152 | + print(converted.missing) # {'hi': 'everyone', 'spam': 'eggs'} |
| 153 | + print(converted) # <Converter object at 0x0000000> |
| 154 | +
|
| 155 | +What about errors? |
| 156 | +****************** |
| 157 | + |
| 158 | +Don't worry---we've got you covered there. Each of our tools will raise special error exceptions that |
| 159 | +you can listen to. Since this is a pretty self-explanitory subject, we recommend :ref:`reading the documentation <ext.error:Error Exceptions>` |
| 160 | +on this. |
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