fix exception thrown during logging, include stack trace

packages/taler-wallet-core/src/operations/errors.ts

@@ -96,7 +96,9 @@ export async function guardOperationException<T>(
       const opErr = makeErrorDetails(
         TalerErrorCode.WALLET_UNEXPECTED_EXCEPTION,
         `unexpected exception (message: ${e.message})`,
-        {},
+        {
+          stack: e.stack,
+        },
       );
       await onOpError(opErr);
       throw new OperationFailedAndReportedError(opErr);

packages/taler-wallet-core/src/util/logging.ts

@@ -22,18 +22,29 @@ const isNode =
   typeof process !== "undefined" && process.release.name === "node";
 
 function writeNodeLog(
-  message: string,
+  message: any,
   tag: string,
   level: string,
   args: any[],
 ): void {
-  process.stderr.write(`${new Date().toISOString()} ${tag} ${level} `);
-  process.stderr.write(message);
-  if (args.length != 0) {
-    process.stderr.write(" ");
-    process.stderr.write(JSON.stringify(args, undefined, 2));
+  try {
+    process.stderr.write(`${new Date().toISOString()} ${tag} ${level} `);
+    process.stderr.write(`${message}`);
+    if (args.length != 0) {
+      process.stderr.write(" ");
+      process.stderr.write(JSON.stringify(args, undefined, 2));
+    }
+    process.stderr.write("\n");
+  } catch (e) {
+    // This can happen when we're trying to log something that doesn't want to be
+    // converted to a string.
+    process.stderr.write(`${new Date().toISOString()} (logger) FATAL `);
+    if (e instanceof Error) {
+      process.stderr.write("failed to write log: ");
+      process.stderr.write(e.message);
+    }
+    process.stderr.write("\n");
   }
-  process.stderr.write("\n");
 }
 
 /**

packages/taler-wallet-core/src/wallet.ts

@@ -919,7 +919,6 @@ export class Wallet {
   /**
    * Implementation of the "wallet-core" API.
    */
-
   private async dispatchRequestInternal(
     operation: string,
     payload: unknown,