download cheat tamat misi gta san andreas pc - Download cheat tamat misi gta san andreas pc | Download cheat tamat misi gta san andreas pcCaching in a reverse proxy / load balancer.
A while ago, I wrote about a method of caching the WCF service methods in a Reverse Proxy using the IObjectMapper to serialize the returned data. In this post, I am going to show how you can cache the result of a WCF service call, using the WCF message headers.
Say you have a WCF service that caches certain data on a rest API, and you return this data to the calling client through the Http request headers (In our case, we’ll use the Accept header, but you get the idea). You can return this data in a few ways, and in this example I’ll use a simple message header, as the overall trend is fairly similar to what I described in the previous post.
First, we have a Caching interceptor that captures the incoming request, and checks to see if there is a cache entry for the HttpRequestMessage instance. If not, it creates a new cache entry with the same request, and stores some parameters that can be accessed in WCF client requests. Here’s the interceptor method that does this:
Next, we just need to plug in the caching interceptor to the WCF service config, and when we make our calls, WCF will do the work for us. Here’s the config:
The interceptor is just looking for a response header with the name Cache-Control that is set to no-cache. If this value is set, then we use the cached value. If the cache entry exists, then we just return the cached value, but if it doesn’t exist, then we just make the request and store the response in the cache. If the the request is for a new value (because the cache entry was updated), then the interceptor will call a second service method to obtain the new data.
If the value isn’t no-cache, then we just call the service method and the data is serialized using the IObjectMapper and stored in the cache. Here’s the service code:
In this example, I’m just returning the value from the nextService() method, but you can serialize your response 0b46394aab