Merge commit '36c66dd290d3ce6eb1ccd310d0c658d4a32bb8eb' as 'repos/effect'

2026-07-19 03:25:18 +05:30
parent dd1071cc10
commit 2daf979036
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+/**
+ * Node.js implementation of the Effect HTTP platform service.
+ *
+ * This module connects the portable `HttpPlatform` file response helpers to
+ * Node runtime primitives. It serves local files through Node readable streams,
+ * supports byte ranges, converts Web `File` values to readable streams, and
+ * fills in content type and content length headers when needed.
+ *
+ * @since 4.0.0
+ */
+import { pipe } from "effect/Function"
+import * as Layer from "effect/Layer"
+import * as EtagImpl from "effect/unstable/http/Etag"
+import * as Headers from "effect/unstable/http/Headers"
+import * as Platform from "effect/unstable/http/HttpPlatform"
+import * as ServerResponse from "effect/unstable/http/HttpServerResponse"
+import * as Fs from "node:fs"
+import { Readable } from "node:stream"
+import Mime from "./Mime.ts"
+import * as NodeFileSystem from "./NodeFileSystem.ts"
+
+/**
+ * Creates the Node `HttpPlatform`, serving file responses from Node readable
+ * streams and adding MIME type and content-length headers when needed.
+ *
+ * @category constructors
+ * @since 4.0.0
+ */
+export const make = Platform.make({
+  fileResponse(path, status, statusText, headers, start, end, contentLength) {
+    const stream = contentLength === 0
+      ? Readable.from([])
+      : Fs.createReadStream(path, { start, end: end === undefined ? undefined : end - 1 })
+    return ServerResponse.raw(stream, {
+      headers: {
+        ...headers,
+        "content-type": headers["content-type"] ?? Mime.getType(path) ?? "application/octet-stream",
+        "content-length": contentLength.toString()
+      },
+      status,
+      statusText
+    })
+  },
+  fileWebResponse(file, status, statusText, headers, _options) {
+    return ServerResponse.raw(Readable.fromWeb(file.stream() as any), {
+      headers: Headers.merge(
+        headers,
+        Headers.fromRecordUnsafe({
+          "content-type": headers["content-type"] ?? Mime.getType(file.name) ?? "application/octet-stream",
+          "content-length": file.size.toString()
+        })
+      ),
+      status,
+      statusText
+    })
+  }
+})
+
+/**
+ * Provides the Node `HttpPlatform` together with the filesystem and ETag
+ * services it needs for file responses.
+ *
+ * @category layers
+ * @since 4.0.0
+ */
+export const layer: Layer.Layer<Platform.HttpPlatform> = pipe(
+  Layer.effect(Platform.HttpPlatform)(make),
+  Layer.provide(NodeFileSystem.layer),
+  Layer.provide(EtagImpl.layer)
+)