实现deepseek 对话

web/apps/web-antd/src/api/ai/chat.ts

@@ -0,0 +1,47 @@
+import { useAccessStore } from '@vben/stores';
+
+import { formatToken } from '#/utils/auth';
+
+export interface FetchAIStreamParams {
+  content: string;
+}
+
+export async function fetchAIStream({ content }: FetchAIStreamParams) {
+  const accessStore = useAccessStore();
+  const token = accessStore.accessToken;
+  const headers = new Headers();
+
+  headers.append('Content-Type', 'application/json');
+  headers.append('Authorization', <string>formatToken(token));
+
+  const response = await fetch('/chat/api/v1/stream', {
+    method: 'POST',
+    headers,
+    body: JSON.stringify({
+      content,
+    }),
+  });
+
+  if (!response.body) throw new Error('No stream body');
+
+  const reader = response.body.getReader();
+  const decoder = new TextDecoder('utf8');
+  let buffer = '';
+
+  return {
+    async *[Symbol.asyncIterator]() {
+      while (true) {
+        const { done, value } = await reader.read();
+        if (done) break;
+        buffer += decoder.decode(value, { stream: true });
+        const parts = buffer.split('\n\n');
+        buffer = parts.pop() || '';
+        for (const part of parts) {
+          if (part.startsWith('data: ')) {
+            yield part.replace('data: ', '');
+          }
+        }
+      }
+    },
+  };
+}