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This rule is triggered when the void return type is used in an async function definition.
| Value | |
|---|---|
| Rule ID | AZF0001 |
| Severity | Error |
Defining async functions with a void return type make it impossible for the Functions runtime to track invocation completion or catch and handle exceptions thrown by the function method.
Refer to this article for general async void information: https://msdn.microsoft.com/magazine/jj991977.aspx
To fix violations, change the function's return type from void to Task and make the necessary code changes to appropriately return a Task.
This rule should not be suppressed. Use of async void will lead to unpredictable behavior.