private static string GetUrlSuffix(BaseAppInstruction instruction)
{
switch (instruction)
{
case NotificationInstruction _:
return("/Notification");
case OtpInstruction _:
return("/OTP");
case RequestDtmfInstruction _:
return("/DTMF");
default:
throw new NotImplementedException($"No known endpoint for sending a {instruction.GetType().Name} to the CM VoiceApi.");
}
}
/// <summary>
/// Sends a notification instruction to CM.
/// </summary>
/// <param name="instruction">The instruction, containing all information on the call to send out.</param>
/// <param name="cancellationToken">Token to cancel the operation.</param>
public async Task <VoiceApiResult <CallQueuedEvent> > SendAsync(BaseAppInstruction instruction, CancellationToken cancellationToken = default)
{
var urlSuffix = GetUrlSuffix(instruction);
using (var request = new HttpRequestMessage(HttpMethod.Post, _url + urlSuffix))
{
request.Headers.Add(ApiKeyHeader, _apiKey.ToString());
request.Content = new StringContent(JsonSerializer.Serialize(Convert.ChangeType(instruction, instruction.GetType())), Encoding.UTF8, "application/json");
using (var result = await _httpClient.SendAsync(request, cancellationToken).ConfigureAwait(false))
{
cancellationToken.ThrowIfCancellationRequested();
var reply = "";
if (result.Content != null)
{
reply = await result.Content.ReadAsStringAsync().ConfigureAwait(false);
}
return(new VoiceApiResult <CallQueuedEvent>
{
HttpStatusCode = result.StatusCode,
Success = result.IsSuccessStatusCode,
Content = reply
});
}
}
}