Improve error handling during group sends

ts/types/Stickers.ts

@@ -529,7 +529,7 @@ export async function downloadEphemeralPack(
     }
     log.error(
       `Ephemeral download error for sticker pack ${redactPackId(packId)}:`,
-      error && error.stack ? error.stack : error
+      Errors.toLogFormat(error)
     );
   }
 }
@@ -554,7 +554,7 @@ export async function downloadStickerPack(
     } catch (error) {
       log.error(
         'doDownloadStickerPack threw an error:',
-        error && error.stack ? error.stack : error
+        Errors.toLogFormat(error)
       );
     }
   });
@@ -696,7 +696,7 @@ async function doDownloadStickerPack(
   } catch (error) {
     log.error(
       `Error downloading manifest for sticker pack ${redactPackId(packId)}:`,
-      error && error.stack ? error.stack : error
+      Errors.toLogFormat(error)
     );
 
     const pack = {
@@ -779,7 +779,7 @@ async function doDownloadStickerPack(
   } catch (error) {
     log.error(
       `Error downloading stickers for sticker pack ${redactPackId(packId)}:`,
-      error && error.stack ? error.stack : error
+      Errors.toLogFormat(error)
     );
 
     const errorStatus = 'error';

ts/types/errors.ts

@@ -4,15 +4,20 @@
 import { get, has } from 'lodash';
 
 export function toLogFormat(error: unknown): string {
+  let result = '';
   if (error instanceof Error && error.stack) {
-    return error.stack;
+    result = error.stack;
+  } else if (has(error, 'message')) {
+    result = get(error, 'message');
+  } else {
+    result = String(error);
   }
 
-  if (has(error, 'message')) {
-    return get(error, 'message');
+  if (has(error, 'cause')) {
+    result += `\nCaused by: ${String(get(error, 'cause'))}`;
   }
 
-  return String(error);
+  return result;
 }
 
 export class ProfileDecryptError extends Error {}