Iniziale

demos/use-api-server-streaming.js

@@ -0,0 +1,53 @@
+// Run the server first with `npm run server`
+import { fetchEventSource } from '@waylaidwanderer/fetch-event-source';
+
+const opts = {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+        message: 'Hello',
+        // Set stream to true to receive each token as it is generated.
+        stream: true,
+    }),
+};
+
+try {
+    let reply = '';
+    const controller = new AbortController();
+    await fetchEventSource('http://localhost:3001/conversation', {
+        ...opts,
+        signal: controller.signal,
+        onopen(response) {
+            if (response.status === 200) {
+                return;
+            }
+            throw new Error(`Failed to send message. HTTP ${response.status} - ${response.statusText}`);
+        },
+        onclose() {
+            throw new Error('Failed to send message. Server closed the connection unexpectedly.');
+        },
+        onerror(err) {
+            throw err;
+        },
+        onmessage(message) {
+            // { data: 'Hello', event: '', id: '', retry: undefined }
+            if (message.data === '[DONE]') {
+                controller.abort();
+                console.log(message);
+                return;
+            }
+            if (message.event === 'result') {
+                const result = JSON.parse(message.data);
+                console.log(result);
+                return;
+            }
+            console.log(message);
+            reply += JSON.parse(message.data);
+        },
+    });
+    console.log(reply);
+} catch (err) {
+    console.log('ERROR', err);
+}