Node: better serverEntrypoint error (#5560)

* fix(node): better entrypoint error * fix(node): surface start errors during preview Co-authored-by: Nate Moore <nate@astro.build>
withastro · Dec 8, 2022 · 281ea9f · 281ea9f
1 parent 02bb0a1
commit 281ea9f
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diff --git a/.changeset/nice-pens-lie.md b/.changeset/nice-pens-lie.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/node': patch
+---
+
+Improve error message when serverEntrypoint does not exist
diff --git a/packages/integrations/node/src/preview.ts b/packages/integrations/node/src/preview.ts
@@ -24,10 +24,14 @@ const preview: CreatePreviewServer = async function ({
 				`The server entrypoint doesn't have a handler. Are you sure this is the right file?`
 			);
 		}
-	} catch (_err) {
-		throw new Error(
-			`The server entrypoint ${fileURLToPath} does not exist. Have you ran a build yet?`
-		);
+	} catch (err) {
+		if ((err as any).code === 'ERR_MODULE_NOT_FOUND') {
+			throw new Error(
+				`The server entrypoint ${fileURLToPath(serverEntrypoint)} does not exist. Have you ran a build yet?`
+			);
+		} else {
+			throw err;
+		}
 	}
 
 	const handler: http.RequestListener = (req, res) => {