Enabling Raven / Sentry integration in a Loopback app

[Dalibor Karlović]

I'm trying to setup a Raven-based client in my Loopback app using existing instructions for Express. This uses a middleware approach as shown there, but I'm having trouble interpreting the proper way of doing it inside a Loopback app.

I've added a snippet like this:

var sentry_dsn = process.env.SENTRY_DSN;
if (sentry_dsn) {
    app.use(raven.middleware.express.requestHandler(sentry_dsn));
    app.use(raven.middleware.express.errorHandler(sentry_dsn));
}

at the top of server.js, but it messed up my other middleware. Also found this as a all-around solution to this problem, but I can't figure out how to properly hook everything up.

If anybody has a tip or experience with it, I'd love to hear about it. Thanks.

[Christopher Speer]

I got the same problem. No errors actually get sent to Sentry, so I'm quite stuck. I tried other approaches and even tried to capture any error myself by subscribing to the error event:

app.use(function onError(err, req, res, next) {
 // whatever
});

But as it turns out, this never gets fired. So, my guess is that it's why Raven / Sentry doesn't work. The error event never gets fired.

Any ideas from the loopback team?

Thanks,

Chris

[Christopher Speer]

Hi there Dalibor,

we figured it out over at the nodedjs sentry github repo:

https://github.com/getsentry/raven-node/issues/162

Hope this helps!

Cheers!

On Wednesday, May 4, 2016 at 11:37:45 AM UTC+2, Dalibor Karlović wrote: