public async Task <Response <ServiceHostAndPort> > Lease(DownstreamContext context)
{
var value = context.HttpContext.Request.Cookies[_key];
if (!string.IsNullOrEmpty(value) && _stored.ContainsKey(value))
{
var cached = _stored[value];
var updated = new StickySession(cached.HostAndPort, DateTime.UtcNow.AddMilliseconds(_expiryInMs));
_stored[value] = updated;
return(new OkResponse <ServiceHostAndPort>(updated.HostAndPort));
}
var next = await _loadBalancer.Lease(context);
if (next.IsError)
{
return(new ErrorResponse <ServiceHostAndPort>(next.Errors));
}
if (!string.IsNullOrEmpty(value) && !_stored.ContainsKey(value))
{
_stored[value] = new StickySession(next.Data, DateTime.UtcNow.AddMilliseconds(_expiryInMs));
}
return(new OkResponse <ServiceHostAndPort>(next.Data));
}
public async Task <Response <ServiceHostAndPort> > Lease(DownstreamContext context)
{
var key = context.HttpContext.Request.Cookies[_key];
lock (_lock)
{
if (!string.IsNullOrEmpty(key) && _stored.ContainsKey(key))
{
var cached = _stored[key];
var updated = new StickySession(cached.HostAndPort, DateTime.UtcNow.AddMilliseconds(_keyExpiryInMs), key);
_stored[key] = updated;
_bus.Publish(updated, _keyExpiryInMs);
return(new OkResponse <ServiceHostAndPort>(updated.HostAndPort));
}
}
var next = await _loadBalancer.Lease(context);
if (next.IsError)
{
return(new ErrorResponse <ServiceHostAndPort>(next.Errors));
}
lock (_lock)
{
if (!string.IsNullOrEmpty(key) && !_stored.ContainsKey(key))
{
var ss = new StickySession(next.Data, DateTime.UtcNow.AddMilliseconds(_keyExpiryInMs), key);
_stored[key] = ss;
_bus.Publish(ss, _keyExpiryInMs);
}
}
return(new OkResponse <ServiceHostAndPort>(next.Data));
}
