添加前端

meshmap_frontend/src/api.ts

@@ -0,0 +1,25 @@
+import type { HealthStatus, ListResponse, NodeInfoMap, PositionRecord, TextMessage } from './types'
+
+async function getJSON<T>(path: string): Promise<T> {
+  const response = await fetch(path)
+  if (!response.ok) {
+    throw new Error(`${response.status} ${response.statusText}`)
+  }
+  return response.json() as Promise<T>
+}
+
+export function getHealth(): Promise<HealthStatus> {
+  return getJSON<HealthStatus>('/api/health')
+}
+
+export function getNodes(): Promise<ListResponse<NodeInfoMap>> {
+  return getJSON<ListResponse<NodeInfoMap>>('/api/nodes?limit=100')
+}
+
+export function getTextMessages(): Promise<ListResponse<TextMessage>> {
+  return getJSON<ListResponse<TextMessage>>('/api/text-messages?limit=20')
+}
+
+export function getPositions(): Promise<ListResponse<PositionRecord>> {
+  return getJSON<ListResponse<PositionRecord>>('/api/positions?limit=200')
+}