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lib/host/server.sx adapts the native http-listen contract (string-keyed
{method,path,query,headers,body} -> {:status :headers :body}) to the Dream
host app: native->dream reassembles path+query into a target dream-request
parses; dream->native is near-identity (dream-response is already
{:body :headers :status}). host/serve = http-listen over host/native-handler
. host/make-app. lib/host/serve.sh boots the full module set and serves in the
foreground (container-entry shaped). Verified live on a host port: health/feed/
feed?actor=/relations reads serve real JSON, unknown->404. server suite (13)
covers the bridge as pure functions.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
45 lines
2.3 KiB
Plaintext
45 lines
2.3 KiB
Plaintext
;; lib/host/server.sx — the live wiring: bridge the native OCaml http-listen
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;; server to the Dream-shaped host app, and serve. The native server hands a
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;; handler a STRING-keyed request dict {"method" "path" "query" "headers" "body"}
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;; and expects back {:status :headers :body}. The host app (host/make-app ->
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;; dream-router) is a fn dream-request -> dream-response. This module adapts
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;; between the two shapes and calls http-listen.
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;; Depends on lib/dream/* (dream-request/response accessors) + lib/host/router.sx
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;; + the kernel http-listen primitive.
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;; ── native request -> dream request ─────────────────────────────────
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;; Reassemble path + query into the target string dream-request parses, and carry
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;; method/headers/body. Missing fields default empty.
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(define host/-native->dream
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(fn (req)
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(let ((path (or (get req "path") "/"))
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(query (or (get req "query") ""))
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(method (or (get req "method") "GET"))
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(headers (or (get req "headers") {}))
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(body (or (get req "body") "")))
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(let ((target (if (> (len query) 0) (str path "?" query) path)))
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(dream-request method target headers body)))))
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;; ── dream response -> native response ───────────────────────────────
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;; dream-response is already {:body :headers :status}; the native server wants
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;; {:status :headers :body}. Same keys — normalise the shape explicitly so the
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;; contract is visible (and headers/body never nil).
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(define host/-dream->native
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(fn (resp)
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{:status (dream-status resp)
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:headers (or (dream-headers resp) {})
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:body (or (dream-resp-body resp) "")}))
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;; ── adapter + serve ─────────────────────────────────────────────────
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;; Wrap a Dream app as a native http-listen handler.
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(define host/native-handler
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(fn (app)
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(fn (req)
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(host/-dream->native (app (host/-native->dream req))))))
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;; Build the app from route groups and start the native server on `port`.
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;; Blocks (the http-listen primitive runs the server loop).
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(define host/serve
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(fn (port groups)
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(http-listen port (host/native-handler (host/make-app groups)))))
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