Computation expression used to combine HttpHandlers in a declarative manner.

The result of the computation expression is a standard Giraffe HttpHandler which means that it's easily composable with other parts of the Giraffe ecosystem.

Example:

let headerPipe = pipeline {
    set_header "myCustomHeader" "abcd"
    set_header "myCustomHeader2" "zxcv"
}

let endpointPipe = pipeline {
    plug fetchSession
    plug head
    plug requestId
}

pipeline computation expression is a way to create HttpHandler using composition of low-level helper functions.