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+---
+'astro': patch
+---
+
+Adds a new function `refreshContent` to the `astro:server:setup` hook that allows integrations to refresh the content layer. This can be used, for example, to register a webhook endpoint during dev, or to open a socket to a CMS to listen for changes.
+
+By default, `refreshContent` will refresh all collections. You can optionally pass a `loaders` property, which is an array of loader names. If provided, only collections that use those loaders will be refreshed. For example, A CMS integration could use this property to only refresh its own collections.
+
+You can also pass a `context` object to the loaders. This can be used to pass arbitrary data, such as the webhook body, or an event from the websocket.
+
+```ts
+ {
+    name: 'my-integration',
+    hooks: {
+        'astro:server:setup': async ({ server, refreshContent }) => {
+            server.middlewares.use('/_refresh', async (req, res) => {
+                if(req.method !== 'POST') {
+                  res.statusCode = 405
+                  res.end('Method Not Allowed');
+                  return
+                }
+                let body = '';
+                req.on('data', chunk => {
+                    body += chunk.toString();
+                });
+                req.on('end', async () => {
+                    try {
+                        const webhookBody = JSON.parse(body);
+                        await refreshContent({
+                          context: { webhookBody },
+                          loaders: ['my-loader']
+                        });
+                        res.writeHead(200, { 'Content-Type': 'application/json' });
+                        res.end(JSON.stringify({ message: 'Content refreshed successfully' }));
+                    } catch (error) {
+                        res.writeHead(500, { 'Content-Type': 'application/json' });
+                        res.end(JSON.stringify({ error: 'Failed to refresh content: ' + error.message }));
+                    }
+                });
+            });
+        }
+    }
+}
+```
+