/// <summary>
/// Asynchronously receive the next message from the queue and delete it.
///
/// Important: This method deletes the message it receives right away. There is no way to receive the message again if something goes wrong while working on the message.
///
/// returns null if no message is there
/// </summary>
public async Task <RsmqMessage> PopMessageAsync(PopMessageOptions options)
{
// todo: validate (qname)
var key = $"{this._options.Namespace}:{options.QueueName}";
var q = await this.GetQueue(options.QueueName);
var res = await _popMessage.EvaluateAsync(
this.RedisClient,
new
{
key = key,
timestamp = q.Timestamp
}
);
var vals = (string[])res;
if (vals.Length != 4)
{
return(null);
}
return(new RsmqMessage
{
Id = vals[0],
Message = vals[1],
ReceivedCount = int.Parse(vals[2]),
FirstReceived = DateTimeOffset.FromUnixTimeMilliseconds(long.Parse(vals[3])).UtcDateTime,
Sent = DateTimeOffset.FromUnixTimeMilliseconds(Base36.Decode(vals[0].Substring(0, 10)) / 1000).UtcDateTime
});
}
/// <summary>
/// Synchronously receive the next message from the queue and delete it.
///
/// Important: This method deletes the message it receives right away. There is no way to receive the message again if something goes wrong while working on the message.
///
/// returns null if no message is there
/// </summary>
public RsmqMessage PopMessage(PopMessageOptions options)
{
return(PopMessageAsync(options).ConfigureAwait(false).GetAwaiter().GetResult());
}