test workaround

Author: flicksolutions

src/lib/functions/fetchTeiData.js

@@ -0,0 +1,31 @@
+import { URL_TEI_PB } from '$lib/constants';
+
+/**
+ * Fetch verse data for a single witness (codex/fragment) from TEI Publisher.
+ * @param {string} handle
+ * @param {string} thirties
+ * @param {string} verse
+ * @param {typeof globalThis.fetch} [fetchFn] - optional fetch function (e.g. SvelteKit's fetch)
+ * @returns {Promise<any>}
+ */
+export async function fetchWitnessVerse(handle, thirties, verse, fetchFn = fetch) {
+	const url = `${URL_TEI_PB}/parts/${handle}.xml/json?odd=parzival.odd&view=page&id=${handle}_${thirties}.${verse.replaceAll('I', 'i')}`;
+	const res = await fetchFn(url);
+	if (!res.ok) return null;
+	return res.json();
+}
+
+/**
+ * Fetch verse data for a single Fassung (hyparchetype) from TEI Publisher.
+ * @param {string} handle
+ * @param {string} thirties
+ * @param {string} verse
+ * @param {typeof globalThis.fetch} [fetchFn] - optional fetch function (e.g. SvelteKit's fetch)
+ * @returns {Promise<any>}
+ */
+export async function fetchFassungVerse(handle, thirties, verse, fetchFn = fetch) {
+	const url = `${URL_TEI_PB}/parts/syn${thirties}.xml/json?odd=parzival.odd&view=single&xpath=//l[@n=%27${handle}%20${thirties}.${verse.replaceAll('I', 'i')}%27]`;
+	const res = await fetchFn(url);
+	if (!res.ok) return null;
+	return res.json();
+}

src/routes/einzelverssynopse/[thirties=thirties]/[verse]/+page.server.js

@@ -1,5 +1,6 @@
 import { URL_STATIC_API } from '$lib/constants';
 import { generateEntries } from '$lib/functions/generateEntries';
+import { fetchWitnessVerse, fetchFassungVerse } from '$lib/functions/fetchTeiData';
 import { metadata } from '$lib/data/metadata';
 import sigilFromHandle from '$lib/functions/sigilFromHandle';
 import { verses } from '$lib/data/verses';
@@ -92,15 +93,18 @@ export async function load({ fetch, params }) {
 
 	const nextVerse = index < filteredVerses.length - 1 ? filteredVerses[index + 1] : null;
 
-	/** Helper: fetch and consume the body immediately so no Response body is left unread */
-	const fetchJson = (/** @type {string} */ url) => fetch(url).then((r) => (r.ok ? r.json() : null));
+	/**
+	 * Call the TEI Publisher directly (bypasses internal +server.js endpoints
+	 * to avoid SvelteKit prerenderer "Body has already been read" conflict).
+	 * The data endpoints still exist and prerender for client-side use.
+	 */
 
 	// Fetch the textzeugen
 	const hasSuffix = verseparts[1]; // check if there is a suffix in the URL
 	await Promise.all(
 		[...(await metadata).codices, ...(await metadata).fragments].map(
 			async (/** @type {{ handle: string | number; }} */ element) => {
-				const handlePath = encodeURIComponent(String(element.handle));
+				const handle = String(element.handle);
 				if (hasSuffix) {
 					const versesToFetch = (await verses).filter(
 						(v) =>
@@ -110,9 +114,7 @@ export async function load({ fetch, params }) {
 					);
 
 					publisherData[element.handle] = versesToFetch.map((verseObject) => {
-						return fetchJson(
-							`/einzelverssynopse/data/${handlePath}/${thirties}/${verseObject.verse}`
-						);
+						return fetchWitnessVerse(handle, thirties, verseObject.verse);
 					});
 					hasAdditions = true;
 				} else {
@@ -130,9 +132,7 @@ export async function load({ fetch, params }) {
 					}
 
 					publisherData[element.handle] = versesToFetch.map((verseObject) => {
-						return fetchJson(
-							`/einzelverssynopse/data/${handlePath}/${thirties}/${verseObject.verse}`
-						);
+						return fetchWitnessVerse(handle, thirties, verseObject.verse);
 					});
 				}
 			}
@@ -143,10 +143,8 @@ export async function load({ fetch, params }) {
 	if (!hasSuffix) {
 		(await metadata).hyparchetypes.forEach(
 			(/** @type {{ handle: string | number; }} */ element) => {
-				const handlePath = encodeURIComponent(String(element.handle));
-				publisherData[element.handle] = [
-					fetchJson(`/einzelverssynopse/data/fassungen/${handlePath}/${thirties}/${verse ?? '01'}`)
-				];
+				const handle = String(element.handle);
+				publisherData[element.handle] = [fetchFassungVerse(handle, thirties, verse ?? '01')];
 			}
 		);
 	}

src/routes/einzelverssynopse/data/[handle]/[thirties]/[verse]/+server.js

@@ -1,15 +1,10 @@
-import { URL_TEI_PB } from '$lib/constants';
 import { json } from '@sveltejs/kit';
+import { fetchWitnessVerse } from '$lib/functions/fetchTeiData';
 
 /** @type {import('./$types').RequestHandler} */
 export async function GET({ fetch, params }) {
-	const res = await fetch(
-		`${URL_TEI_PB}/parts/${params.handle}.xml/json?odd=parzival.odd&view=page&id=${params.handle}_${params.thirties}.${params.verse.replaceAll('I', 'i')}`
-	);
-
-	const item = await res.json();
-
-	return json(item, { status: res.status });
+	const item = await fetchWitnessVerse(params.handle, params.thirties, params.verse, fetch);
+	return json(item, { status: item ? 200 : 404 });
 }
 
 export const prerender = true;

src/routes/einzelverssynopse/data/fassungen/[handle]/[thirties]/[verse]/+server.js

@@ -1,15 +1,10 @@
-import { URL_TEI_PB } from '$lib/constants';
 import { json } from '@sveltejs/kit';
+import { fetchFassungVerse } from '$lib/functions/fetchTeiData';
 
 /** @type {import('./$types').RequestHandler} */
 export async function GET({ fetch, params }) {
-	const res = await fetch(
-		`${URL_TEI_PB}/parts/syn${params.thirties}.xml/json?odd=parzival.odd&view=single&xpath=//l[@n=%27${params.handle}%20${params.thirties}.${params.verse.replaceAll('I', 'i')}%27]`
-	);
-
-	const item = await res.json();
-
-	return json(item, { status: res.status });
+	const item = await fetchFassungVerse(params.handle, params.thirties, params.verse, fetch);
+	return json(item, { status: item ? 200 : 404 });
 }
 
 export const prerender = true;