What is the 4th request cache middleware provided by Giraffe?

[64J0]

When reading the documentation at Giraffe docs, there's this part of the text:

Giraffe offers in total 4 http handlers which can be used to configure response caching for an endpoint.

But, at this section I was able to locate only 3 http handlers:

• publicResponseCaching
• privateResponseCaching
• noResponseCaching

Then, what is the 4th handler?

[64J0]

When looking at the code I found this function: responseCaching. But I'm not sure if it's the real 4th handler mentioned in the text.

From here -> https://github.com/giraffe-fsharp/Giraffe/blob/master/src/Giraffe/ResponseCaching.fs#L42.

[TheAngryByrd]

Looks like it is the 4th handler. It's the base function that all the provided helpers are created from, gives you absolute control but isn't as friendly.

[64J0]

Indeed, it's presented in the next section VaryByQueryKeys. I did not notice it before.