Soenneker.Utils.Debounce

A utility that lets you debounce work in .NET. Give it a delay, async/sync delegate, and the Debouncer guarantees that multiple rapid calls collapse into exactly one invocation.

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Why would I need this?

• API calls: Prevent hammering a server while the user types.
• Disk I/O: Batch frequent save requests into a single write.
• Telemetry: Send aggregated metrics after bursts of activity.
• Search boxes / auto-complete: React only after the user pauses typing.

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Quick start

dotnet add package Soenneker.Utils.Debounce

using Soenneker.Utils.Debounce;

var debouncer = new Debouncer();

// Fire only once, 300 ms after the *last* request:
void OnTextChanged(string text)
{
    debouncer.Debounce(
        delayMs: 300,
        action: async ct =>
        {
            var results = await SearchAsync(text, ct);
            UpdateUI(results);
        });
}

void OnResize()
{
    debouncer.Debounce(
        delayMs: 250,
        action: () =>
        {
            // Runs on the thread-pool after 250 ms of quiescence
            SaveWindowLayout();
        });
}

Leading-edge execution

Pass runLeading: true if you want the first call to run immediately and the trailing call to run after the quiet period:

debouncer.Debounce(
    delayMs: 500,
    runLeading: true,
    action: ct => Logger.LogAsync("Burst started", ct));