Using an async Check Function with discord.py's wait_for

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Understanding the Problem

The typical structure for using wait_for involves creating a check function that determines whether certain conditions are met (like a user reaction, a message, etc.). However, if you try to make this check function asynchronous using await inside it, you'll run into issues since check is not awaited directly. Let's look at the errors you're likely to encounter:

SyntaxError: This error arises when you attempt to await something outside an async function context.

TypeError: Occurs when trying to await a non-awaitable function.

These errors can be frustrating, especially when you're trying to implement complex bot behaviors that require checks based on user input.

The Solution

To effectively use an async check function with wait_for, you can organize your code into two functions: one asynchronous for the action you want to perform and a synchronous function to validate conditions. Here’s how to do it:

Step 1: Setup Your Command

First, we will define an asynchronous command that will be triggered in response to a user action.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create the Async Function

Within your command, define an async function that encapsulates the operation you want to perform. This is the action you want to complete when the check passes.

[[See Video to Reveal this Text or Code Snippet]]

This function can be customized to perform any action you want.

Step 3: Define the Check Function

Next, create a synchronous check function that will use the context of the message and determine whether it meets your criteria.

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Use wait_for with the Check

Finally, implement the wait_for method using the defined check function.

[[See Video to Reveal this Text or Code Snippet]]

Putting It All Together

Here’s the complete example to see how it all fits:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion