allow to pass extra data to on_demand pages

lumeland · Apr 28, 2023 · 4d2df49 · 4d2df49
1 parent 5c7a8aa
commit 4d2df49
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/core/site.ts b/core/site.ts
@@ -654,7 +654,10 @@ export default class Site {
   }
 
   /** Render a single page (used for on demand rendering) */
-  async renderPage(file: string): Promise<Page | undefined> {
+  async renderPage(
+    file: string,
+    extraData?: Record<string, unknown>,
+  ): Promise<Page | undefined> {
     // Load the page
     this.fs.init();
 
@@ -672,6 +675,11 @@ export default class Site {
       return;
     }
 
+    // Add extra data
+    if (extraData) {
+      page.data = { ...page.data, ...extraData };
+    }
+
     await this.dispatchEvent({ type: "beforeRenderOnDemand", page });
 
     // Render the page

diff --git a/middlewares/on_demand.ts b/middlewares/on_demand.ts
@@ -8,6 +8,7 @@ export type Router = (url: URL) => string | undefined;
 export interface Options {
   site: Site;
   router?: Router;
+  extraData?: (request: Request) => Record<string, unknown>;
 }
 
 /** Render pages on demand */
@@ -33,7 +34,8 @@ export default function onDemand(options: Options): Middleware {
       return response;
     }
 
-    const page = await site.renderPage(file);
+    const data = options.extraData?.(request) ?? {};
+    const page = await site.renderPage(file, data);
 
     if (!page || !page.outputPath) {
       return response;