New returns a new Cache instance backendFilePath represents the file on the filesystem where the metadata is stored minSize represents the minimum size of the body to be cached (0 caches everything).

StateCached represents a cache entry that has been cached.

StateInit represents an initialized cache entry state.

StateInProgress represents a cache entry that is being cached.

StateInvalid represents an invalid state.

StateNoCache represents a cache entry that does not need to be cached.

ErrEntryNotFound represents an error where a cache entry was not found.

ErrNoCache represents a request that is not cached.

ErrReadFailed represents an error where reading from proxy failed.

Cache represents a cache instance.

Entry represents a backend entry.

JSONTime is a time.Time wrapper that JSON (un)marshals into a unix timestamp.

State represents the cache state of an entry.