diff --git a/client/src/components/MapView.vue b/client/src/components/MapView.vue
index fba76b7..40fbf32 100644
--- a/client/src/components/MapView.vue
+++ b/client/src/components/MapView.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import type {AirTrafficLayer} from '@/services/airtraffic.ts';
+import {AirTrafficLayer} from '@/services/airtraffic.ts';
 import { onMounted, onUnmounted, ref, watch } from 'vue'
 import Map from 'ol/Map'
 import View from 'ol/View'
diff --git a/client/src/services/airtraffic.ts b/client/src/services/airtraffic.ts
index 4a83325..6dab139 100644
--- a/client/src/services/airtraffic.ts
+++ b/client/src/services/airtraffic.ts
@@ -1,3 +1,4 @@
+import {BASE} from '@/services/api.ts';
 import Map from 'ol/Map'
 import { Feature } from 'ol'
 import Point from 'ol/geom/Point'
@@ -7,7 +8,7 @@ import { Style, Icon, Stroke } from 'ol/style'
 import { Vector as VectorLayer } from 'ol/layer'
 import { Vector as VectorSource } from 'ol/source'
 
-const API = '/api'
+const API = BASE + '/api'
 
 const COLORS: Record<string, string> = {
 	'Cargo':     '#00ff00',
diff --git a/client/src/services/api.ts b/client/src/services/api.ts
index 2f1d0ea..ac1263e 100644
--- a/client/src/services/api.ts
+++ b/client/src/services/api.ts
@@ -1,4 +1,4 @@
-const BASE = import.meta.env.DEV ? 'http://10.69.5.23:3000' : ''
+export const BASE = import.meta.env.DEV ? 'http://10.69.5.23:3000' : ''
 
 export type DataRow = Record<string, number | string | null>
 
diff --git a/server/airtraffic.mjs b/server/airtraffic.mjs
index 38e62ff..15a220c 100644
--- a/server/airtraffic.mjs
+++ b/server/airtraffic.mjs
@@ -1,5 +1,6 @@
 import { cfg }       from './config.mjs'
-import { writeFile, readFile, existsSync } from 'fs'
+import { writeFile, readFile } from 'fs/promises'
+import { existsSync } from 'fs'
 import { resolve, dirname } from 'path'
 import { fileURLToPath }    from 'url'