last updates

templates/results.html

@@ -6,25 +6,42 @@
     <title>Výsledky pro "{{ query }}" - vontor.cz</title>
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
     <script>
-      function download(fmt) {
-        const payload = { format: fmt, results: JSON.parse(document.getElementById('json-data').textContent) };
+      function download(format) {
+        const resultsJsonElement = document.getElementById('json-data');
+        const results = JSON.parse(resultsJsonElement.textContent);
+        const requestPayload = { format, results };
+
         fetch('/export', {
           method: 'POST',
-          headers: {'Content-Type': 'application/json'},
-          body: JSON.stringify(payload)
-        }).then(r => {
-          if (r.ok) return r.blob();
-          return r.json().then(j=>{throw j});
-        }).then(blob=>{
-          const url = window.URL.createObjectURL(blob);
-          const a = document.createElement('a');
-          a.href = url;
-          a.download = 'results.' + fmt;
-          document.body.appendChild(a);
-          a.click();
-          a.remove();
-          window.URL.revokeObjectURL(url);
-        }).catch(e=>{ alert('Export failed: ' + JSON.stringify(e));});
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(requestPayload)
+        })
+        .then(function(response) {
+          if (response.ok){
+            return response.blob();
+          }
+
+          //error
+          return response.json().then(function(errorBody) { throw errorBody; });
+        })
+        .then(function(fileBlob) {
+          //blob
+          const objectUrl = window.URL.createObjectURL(fileBlob);
+
+          const downloadLink = document.createElement('a');
+
+          downloadLink.href = objectUrl;
+          downloadLink.download = 'results.' + format;
+          document.body.appendChild(downloadLink);
+
+          downloadLink.click();
+          downloadLink.remove();
+
+          window.URL.revokeObjectURL(objectUrl);
+        })
+        .catch(function(error) {
+          alert('Export failed: ' + JSON.stringify(error));
+        });
       }
     </script>
   </head>