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Helper Extensions

Tombatron.Turbo provides extension methods on HttpContext for detecting Turbo request types and retrieving connection metadata.

Turbo Frame Extensions​

// Is this a Turbo Frame request?
HttpContext.IsTurboFrameRequest()

// Is it for a specific frame?
HttpContext.IsTurboFrameRequest("cart-items")

// Does the frame ID start with a prefix?
HttpContext.IsTurboFrameRequestWithPrefix("item_")

// Get the raw frame ID
string? frameId = HttpContext.GetTurboFrameId();

Turbo Stream Extensions​

// Is this a Turbo Stream request?
HttpContext.IsTurboStreamRequest()

SignalR Extensions​

// Get the SignalR connection ID (for originator exclusion)
string? connectionId = HttpContext.GetSignalRConnectionId();

The connection ID is sent automatically by the JS adapter as an X-SignalR-Connection-Id header on every Turbo fetch request. Pass it to ITurbo.Stream() or ITurbo.Broadcast() to exclude the originator from broadcasts.

Usage Pattern​

The typical pattern in a page handler:

public IActionResult OnPostUpdate()
{
    // Mutate data...

    if (HttpContext.IsTurboFrameRequest())
    {
        return Partial("_MyPartial", Model);
    }

    return RedirectToPage();
}

For more details, see the Turbo Frames Guide.