feat: 前端代码

frontend/src/services/graphApi.ts

@@ -0,0 +1,56 @@
+import axios from 'axios';
+import type { GraphData, Node, Edge } from '../types/graph';
+
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:3000/api';
+
+const apiClient = axios.create({
+  baseURL: API_BASE_URL,
+  timeout: 10000,
+  headers: {
+    'Content-Type': 'application/json',
+  },
+});
+
+export const graphApi = {
+  async getData(): Promise<GraphData> {
+    try {
+      const response = await apiClient.get<GraphData>('/graph');
+      return response.data;
+    } catch (error) {
+      console.error('Error fetching graph data:', error);
+      return { nodes: [], edges: [] };
+    }
+  },
+
+  async searchNodes(query: string): Promise<Node[]> {
+    try {
+      const response = await apiClient.get<Node[]>(`/search?q=${encodeURIComponent(query)}`);
+      return response.data;
+    } catch (error) {
+      console.error('Error searching nodes:', error);
+      return [];
+    }
+  },
+
+  async getNodeById(id: string): Promise<Node | null> {
+    try {
+      const response = await apiClient.get<Node>(`/nodes/${id}`);
+      return response.data;
+    } catch (error) {
+      console.error('Error fetching node:', error);
+      return null;
+    }
+  },
+
+  async getNeighbors(nodeId: string): Promise<{ nodes: Node[]; edges: Edge[] }> {
+    try {
+      const response = await apiClient.get(`/nodes/${nodeId}/neighbors`);
+      return response.data;
+    } catch (error) {
+      console.error('Error fetching neighbors:', error);
+      return { nodes: [], edges: [] };
+    }
+  },
+};
+
+export default apiClient;