How to Monitor & Configure Alerts for Worker Metrics (Errors and Exceptions)

Developers Workers
2

Hi there,

You can easily handle exceptions in your Worker code by using statements such as try…catch to ensure that if an exception is thrown in your code then it will be caught and handled gracefully.

For example, wrapping code that could trigger an exception as follows:

try { // potential exception in this code block myfunction(); } catch (error) { // if an exception was thrown, catch the error in this block console.error(error); }

Alternatively, you can also use worker logs:

you would add the event.passThroughOnException() function to the Fetch addEventListener as shown below:

addEventListener("fetch", event => { event.passThroughOnException() event.respondWith(handleRequest(event.request)) })

Take care.