jolt-lang/http-client

clj-http-lite running on Jolt.

clj-http-lite is a small, dependency-light Clojure HTTP client built on the JVM's java.net.HttpURLConnection. Jolt has no JVM, so this library supplies the host APIs clj-http-lite needs as Jolt host shims — the same approach jolt-lang/router uses for reitit. None of it lives in jolt core: requiring this library installs the shims at load.

(require '[jolt.http-client :as http])

(http/get "https://example.com")
(http/get "https://api.example.com/things" {:query-params {"q" "jolt"} :as :json})
(http/post "https://example.com/x" {:body "{\"a\":1}" :content-type :json})
;; also: head, put, delete, and the lower-level request

The functions mirror clj-http.lite.client exactly — see its docs for the full request/response map.

What it provides

clj-http-lite uses	Jolt shim
java.net.URL, HttpURLConnection	hand-rolled HTTP/1.1 client over BSD sockets via jolt.ffi (jolt.http.net / jolt.http.platform)
java.io.ByteArrayInput/OutputStream	byte-stream tagged-tables wired into io/copy / slurp
java.util.zip (gzip/deflate)	the system libz via jolt.ffi (jolt.http.zlib)
javax.net.ssl (https, insecure?)	the system OpenSSL via jolt.ffi, memory-BIO TLS over the socket (jolt.http.tls)
java.net.http.HttpClient (JDK 11+ client)	construction + getters for the modern client/request builders (HttpClient/HttpRequest/HttpResponse + BodyPublishers/BodyHandlers/HttpHeaders); used by cognitect aws-api's java backend. Live sends not yet wired (no CompletableFuture).

The native libraries (libc sockets, libz, OpenSSL) are declared in deps.edn under :jolt/native; jolt loads them before the namespaces are required.

Requirements

• System libz (always present) and OpenSSL (libssl/libcrypto) for https.
• A jolt build with the library-shim host hooks (__register-class-methods! / __register-instance-check!) and the FFI byte-buffer / charset support this library relies on.

Tests

joltc -M:test runs clj-http-lite's own client, links and integration suites under Jolt. The suites are vendored under test/clj_http/lite; their server-process fixture is replaced with in-process plaintext + TLS servers (jolt.http.test-server, over jolt.ffi sockets + OpenSSL) in place of the suite's Jetty subprocess — no external checkout needed.

joltc -M:test

All 60 tests pass (116 assertions), including the self-signed-cert TLS test and the gzip/deflate decompression tests.