public Response <DownstreamRoute> Get(string upstreamUrlPath, string upstreamQueryString, string upstreamHttpMethod, IInternalConfiguration configuration, string upstreamHost)
{
var serviceName = GetServiceName(upstreamUrlPath);
var downstreamPath = GetDownstreamPath(upstreamUrlPath);
if (HasQueryString(downstreamPath))
{
downstreamPath = RemoveQueryString(downstreamPath);
}
var downstreamPathForKeys = $"/{serviceName}{downstreamPath}";
var loadBalancerKey = CreateLoadBalancerKey(downstreamPathForKeys, upstreamHttpMethod, configuration.LoadBalancerOptions);
if (_cache.TryGetValue(loadBalancerKey, out var downstreamRoute))
{
return(downstreamRoute);
}
var qosOptions = _qoSOptionsCreator.Create(configuration.QoSOptions, downstreamPathForKeys, new List <string> {
upstreamHttpMethod
});
var upstreamPathTemplate = new UpstreamPathTemplateBuilder().WithOriginalValue(upstreamUrlPath).Build();
var downstreamReRouteBuilder = new DownstreamReRouteBuilder()
.WithServiceName(serviceName)
.WithLoadBalancerKey(loadBalancerKey)
.WithDownstreamPathTemplate(downstreamPath)
.WithUseServiceDiscovery(true)
.WithHttpHandlerOptions(configuration.HttpHandlerOptions)
.WithQosOptions(qosOptions)
.WithDownstreamScheme(configuration.DownstreamScheme)
.WithLoadBalancerOptions(configuration.LoadBalancerOptions)
.WithUpstreamPathTemplate(upstreamPathTemplate);
var rateLimitOptions = configuration.ReRoutes != null
? configuration.ReRoutes
.SelectMany(x => x.DownstreamReRoute)
.FirstOrDefault(x => x.ServiceName == serviceName)
: null;
if (rateLimitOptions != null)
{
downstreamReRouteBuilder
.WithRateLimitOptions(rateLimitOptions.RateLimitOptions)
.WithEnableRateLimiting(true);
}
var downstreamReRoute = downstreamReRouteBuilder.Build();
var reRoute = new ReRouteBuilder()
.WithDownstreamReRoute(downstreamReRoute)
.WithUpstreamHttpMethod(new List <string>()
{
upstreamHttpMethod
})
.WithUpstreamPathTemplate(upstreamPathTemplate)
.Build();
downstreamRoute = new OkResponse <DownstreamRoute>(new DownstreamRoute(new List <PlaceholderNameAndValue>(), reRoute));
_cache.AddOrUpdate(loadBalancerKey, downstreamRoute, (x, y) => downstreamRoute);
return(downstreamRoute);
}
private void GivenSetDownstreamReRoute()
{
_downstreamContext.DownstreamReRoute = _downstreamReRouteBuilder.Build();
}