fast-twitch.middlewares.content-length

Usage and execution boundary

Adds byte lengths for supported bodies without consuming a native stream. Strings and sequential bodies use UTF-8 byte length; buffers, typed views and Blobs use their byte sizes. Do not equate character count with UTF-8 bytes.

(ns application.middleware
  (:require [fast-twitch.middlewares.content-length :as middleware]))

(defn handler [_]
  {:status 200 :headers {"content-type" "text/plain"} :body "Hello"})

(def app (middleware/wrap-content-length handler))

This defines the Ring handler portion. Adapt app through routing/ft-handler or pass it to server/listen!; startup instructions and a complete walkthrough show the surrounding project.

Wrapper order and all middleware families. The function reference below preserves the upstream signatures and source links; helper functions do not all share the wrapper's arity.

Upstream function reference

Adds a Content-Length header when the response body size can be determined eagerly.

content-length-response

(content-length-response response _request)

Function.

Adds Content-Length to a response when it is missing and calculable. Source

wrap-content-length

(wrap-content-length handler)

Function.

Wraps a handler so its responses gain a Content-Length header when possible. Source