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JSON.parse is called on invalid json (response from sendEventData)

See original GitHub issue

I got the following error on my production server today:

<html> 
^ 
SyntaxError: Unexpected token < in JSON at position 0 
    at JSON.parse (<anonymous>) 
    at IncomingMessage.<anonymous> (/app/node_modules/keen-tracking/lib/record-events-server.js:206:22)

The error occurs at /app/node_modules/keen-tracking/lib/record-events-server.js:206:22 where you have: var res = JSON.parse(body), error;

It’s been my experience that you should always wrap any call to JSON.parse in a try/catch block.

I’m sure that’s not enough for a fix - seems like the keen server is returning an html body instead of json - so you might have a bigger issue here, and I’m not even sure if I was sending something invalid in my request (because the error, as you can see, cannot be parsed).

Issue Analytics

State:
Created 6 years ago
Comments:12 (6 by maintainers)

Top GitHub Comments

1reaction

dlaucommented, Oct 2, 2017

@dustinlarimer Thanks for the expedient patch!

If your eng team needs data to look at, feel free to reach out to me @ daryl@zenrez.com 👍

1reaction

dustinlarimercommented, Oct 2, 2017

@joaoreynolds @dlau apologies for the glitch – this patch has been published in keen-tracking@1.3.0. Thanks for reporting and helping us squash this bug! Please let me know if you encounter any more issues.

I’ve also shared your posts with our platform eng team to investigate those malformed responses 👍