Change the external api based on either the external site repo, api_u…

…rl or the fallback amsterdam repo

services/externalSiteApi.js

@@ -1,19 +1,22 @@
 const fetch = require('node-fetch');
-const apiUrl = process.env.EXTERNAL_SITE_REPO || 'https://api.openstad.amsterdam.nl/api/repo';
-const siteApiKey =  process.env.SITE_API_KEY;
+const apiUrl =
+  process.env.EXTERNAL_SITE_REPO || process.env.API_URL
+    ? `${process.env.API_URL}/api/repo`
+    : undefined || 'https://api.openstad.amsterdam.nl/api/repo';
+const siteApiKey = process.env.SITE_API_KEY;
 
 exports.fetchAll = async () => {
   try {
     let response = await fetch(`${apiUrl}`, {
-	    headers: { "Content-type": "application/json" },
+      headers: { 'Content-type': 'application/json' },
       method: 'GET',
-    })
+    });
     if (!response.ok) {
       console.log(response);
-      throw new Error('Fetch failed')
+      throw new Error('Fetch failed');
     }
-		return await response.json();
-  } catch(err) {
+    return await response.json();
+  } catch (err) {
     console.log(err);
   }
-}
+};