[DEGA-248] visium hd pre process support

js/global_variables/meta_gene.js

@@ -15,12 +15,17 @@ export const set_meta_gene = async (
     meta_gene_url = `${base_url}/meta_gene_${seg_version}.parquet`;
   }
 
+  console.log('meta_gene_url', meta_gene_url);
+  console.log('options.fetch', options.fetch);
+
   const meta_gene_table = await get_arrow_table(
     meta_gene_url,
     options.fetch,
     aws
   );
 
+  console.log('meta_gene_table', meta_gene_table);
+
   const gene_names = meta_gene_table.getChild('__index_level_0__').toArray();
   const gene_mean = meta_gene_table.getChild('mean').toArray();
   const gene_std = meta_gene_table.getChild('std').toArray();

js/image_tile/get_image_dimensions.js

@@ -1,15 +1,38 @@
 export const get_image_dimensions = async (
   base_url,
   image_name,
-  options,
-  aws
+  options = {}, // Safe default
+  aws = null // Safe default
 ) => {
   const dzi_url = `${base_url}/pyramid_images/${image_name}.dzi`;
+  console.log('🔍 dzi_url:', dzi_url);
 
-  const response =
-    aws !== null
-      ? await aws.fetch(dzi_url)
-      : await fetch(dzi_url, options.fetch);
+  let fetchFn;
+  let fetchOptions;
+
+  // Handle AWS fetch case
+  if (aws && typeof aws.fetch === 'function') {
+    fetchFn = aws.fetch;
+    fetchOptions = undefined; // aws.fetch usually includes its own signing logic
+  } else {
+    // Use custom fetch if provided, else fall back to global fetch
+    fetchFn = typeof options.fetch === 'function' ? options.fetch : fetch;
+    fetchOptions = options.requestOptions ?? {}; // Allow passing requestOptions
+  }
+
+  let response;
+  try {
+    response = await fetchFn(dzi_url, fetchOptions);
+    if (!response.ok) {
+      throw new Error(`HTTP ${response.status} - ${response.statusText}`);
+    }
+  } catch (error) {
+    console.error('❌ Fetch failed:', {
+      url: dzi_url,
+      error: error.message,
+    });
+    throw error;
+  }
 
   const xmlText = await response.text();
   const dziXML = new DOMParser().parseFromString(xmlText, 'text/xml');
@@ -26,5 +49,6 @@ export const get_image_dimensions = async (
     ),
   };
 
+  console.log('📐 Parsed image dimensions:', dimensions);
   return dimensions;
 };

js/read_parquet/get_arrow_table.js

@@ -3,9 +3,14 @@ import { handleAsyncError } from '../temp_utils/errorHandler';
 import { arrayBufferToArrowTable } from './arrayBufferToArrowTable';
 
 export const get_arrow_table = async (url, fetch_options, aws) => {
+  console.log('start get_arrow_table func');
   try {
+    console.log('start response');
+    console.log('url', url);
+
     const response =
       aws !== null ? await aws.fetch(url) : await fetch(url, fetch_options);
+    console.log('after response');
 
     const arrayBuffer = await response.arrayBuffer();
     const arrowTable = arrayBufferToArrowTable(arrayBuffer);