/// <summary>
/// Gets the correlation id from header , if not found a new is added to the header and returned.
/// </summary>
/// <returns>Correlation id for request.</returns>
public static string GetOrAddCorrelationId(this IHeaderDictionary headers)
{
if (headers == null)
{
throw new ArgumentNullException(nameof(headers));
}
return(headers.TryGetValue(WellKnownHttpHeaders.CorrelationId, out var header)
? header.FirstOrDefault()
: headers.AddCorrelationId(Guid.NewGuid().ToString().ToUpperInvariant()));
}