Add before and after invoke events

Also clean up demo bot logging and bump version

Author: Kenny2github

demo_bot.py

@@ -156,10 +156,16 @@ async def on_slash_permissions():
     stop.add_perm(client.app_info.owner, True, None)
     await client.register_permissions()
 
+@client.event
+async def on_before_slash_command_invoke(ctx: slash.Context):
+    logger.info('User %s running /%s', ctx.author, ctx.command)
+
 # show extension logs
 logger = logging.getLogger('discord.ext.slash')
 logger.setLevel(logging.DEBUG)
 logger.addHandler(logging.StreamHandler())
+logger.handlers[0].setFormatter(logging.Formatter(
+    '{levelname}\t{asctime} {message}', style='{'))
 
 token = os.environ['DISCORD_TOKEN'].strip()
 

discord/ext/slash/__init__.py

@@ -85,7 +85,7 @@ async def repeat( # command name
     'SlashBot'
 ]
 
-__version__ = '0.9.0'
+__version__ = '0.9.1'
 
 class SlashWarning(UserWarning):
     """:mod:`discord.ext.slash`-specific warning type."""
@@ -1359,6 +1359,7 @@ async def on_interaction_create(self, event: dict):
             raise commands.CommandNotFound(
                 f'No command {event["data"]["name"]!r} found by any critera')
         ctx = await cmd.coro.__annotations__[cmd._ctx_arg](self, cmd, event)
+        self.dispatch('before_slash_command_invoke', ctx)
         try:
             await ctx.command.invoke(ctx)
         except commands.CommandError as exc:
@@ -1370,6 +1371,8 @@ async def on_interaction_create(self, event: dict):
                 raise commands.CommandInvokeError(exc) from exc
             except commands.CommandInvokeError as exc2:
                 self.dispatch('command_error', ctx, exc2)
+        else:
+            self.dispatch('after_slash_command_invoke', ctx)
 
     async def on_slash_permissions(self):
         await self.register_permissions()

docs/discord-ext-slash.rst

@@ -84,4 +84,13 @@ Events
    opportunity to register dynamic permissions in code before pushing to the
    API. If overriding using @:meth:`discord.Client.event`, you must await
    :meth:`-SlashBot.register_permissions` at the end of the event handler.
-   See ``/stop`` in ``demo_bot.py`` for an example.
+   See ``/stop`` in ``demo_bot.py`` for an example.
+
+.. function:: on_before_slash_command_invoke(ctx: Context)
+
+   Triggered immediately before a slash command is invoked, for logging etc.
+
+.. function:: on_after_slash_command_invoke(ctx: Context)
+
+   Triggered immediately after a *successful* slash command invocation.
+   Failed invocations will trigger :func:`discord.on_command_error` instead.