Snippet for: Azure App Configuration as a configuration provider in .NET Core apps - Part 3: Hot-Reload (https://medium.com/p/de398e009553)

EventGridWebHook.cs

app.MapPost(
    "/refresh",
    async (
        [FromBody] Azure.Messaging.EventGrid.EventGridEvent[] request,
        [FromServices] IConfigurationRefresherProvider refreshProvider) =>
    {
        var eg = request.First();

        if (eg.EventType == "Microsoft.EventGrid.SubscriptionValidationEvent")
        {
            var data = eg.Data.ToObjectFromJson<JsonObject>();
            var responseData = new SubscriptionValidationResponse()
            {
                ValidationResponse = data["validationCode"].ToString()
            };

            return Results.Ok(responseData);
        }

        eg.TryCreatePushNotification(out var notification);

        if (notification == null)
            return Results.Ok();

        foreach (var refresher in refreshProvider.Refreshers)
        {
            refresher.ProcessPushNotification(notification, TimeSpan.FromSeconds(1));
        }

        return Results.Ok();
    });