stackdump

Get a dump file for your unhandled promise rejection stack and inspect it in a browser. For Node.js 8 and above.

Install: npm install stackdump

test.js:

setTimeout(function foo() {
  Promise.reject(new Error('foo'));
}, 10);

$ node -r stackdump test.js
[stack dumped to node-21992-20171130T221243.dump (gen in 214 ms)]
(node:21992) UnhandledPromiseRejectionWarning: Error: foo
    at Timeout.foo [as _onTimeout] (/home/sqrt/src/stackdump/test/fixtures/crashing-script.js:3:18)
    at ontimeout (timers.js:485:11)
    at tryOnTimeout (timers.js:309:5)
    at Timer.listOnTimeout (timers.js:269:5)

Creates a core dump file with a name like node-21992-20171130T221243.dump (or writes to a file path specified via the STACKDUMP_FILE environment variable).

Inspect that file in the browser:

$ stackdump-open node-21992-20171130T221243.dump

License

MIT