2 replies

Better error logging

Hi, I am trying to log the errors in a better way to include the stack trace on the logs.
When I checked the docs, (https://developers.cloudflare.com/workers/observability/source-maps/),
once source maps are enabled, we would see the trace with respect to the source maps.

But after enabling, I am still seeing the trace with respect to the minified version (js).
Here is the logs I got,

and my wrangler.toml looks like:

name = "name"
main = "src/index.ts"
compatibility_date = "2025-04-01"
upload_source_maps = true

compatibility_flags = ["nodejs_compat"]

[observability]
enabled = true
# other env releated...

name = "name"
main = "src/index.ts"
compatibility_date = "2025-04-01"
upload_source_maps = true

compatibility_flags = ["nodejs_compat"]

[observability]
enabled = true
# other env releated...

My log function looks like:

export function captureError(e: unknown) {
  if (e instanceof Error) {
    console.error('Captured unhandled error:', e, '\nStack:', e.stack);
  } else {
    console.error('Captured unhandled error (non-Error):', e);
  }
}

export function captureError(e: unknown) {
  if (e instanceof Error) {
    console.error('Captured unhandled error:', e, '\nStack:', e.stack);
  } else {
    console.error('Captured unhandled error (non-Error):', e);
  }
}

Not sure, why its showing the logs with the javascript version.

Cloudflare Developers•9mo ago•

2 replies

blackfish

Better error logging

name = "name"
main = "src/index.ts"
compatibility_date = "2025-04-01"
upload_source_maps = true

compatibility_flags = ["nodejs_compat"]

[observability]
enabled = true
# other env releated...

name = "name"
main = "src/index.ts"
compatibility_date = "2025-04-01"
upload_source_maps = true

compatibility_flags = ["nodejs_compat"]

[observability]
enabled = true
# other env releated...

My log function looks like:

export function captureError(e: unknown) {
  if (e instanceof Error) {
    console.error('Captured unhandled error:', e, '\nStack:', e.stack);
  } else {
    console.error('Captured unhandled error (non-Error):', e);
  }
}

export function captureError(e: unknown) {
  if (e instanceof Error) {
    console.error('Captured unhandled error:', e, '\nStack:', e.stack);
  } else {
    console.error('Captured unhandled error (non-Error):', e);
  }
}

Not sure, why its showing the logs with the javascript version.

Better error logging

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