This is a tiny library for adding custom trace data to error objects for easier debugging. Read the blog post.
Example:
class Thing {
something() {
throw new Error("Oops")
}
async somethingElse(cb) {
this.something(await fetch('/'))
}
}
instrumentClass(Thing)
const doStuff = instrument('doStuff', async () => {
const thing = new Thing()
await thing.somethingElse()
})
doStuff()
/*
Uncaught (in promise) Error: Oops
at Thing.something (<anonymous>:3:11)
at Thing.wrapper (<anonymous>:11:18)
at Thing.somethingElse (<anonymous>:6:10)
at async <anonymous>:15:3
Intercepted in:
Thing.something
Thing.somethingElse
doStuff
*/