[tombh]

This is such an infuriating problem. I'm convinced I'm using Go wrong, because I simply can't understand how this doesn't make it a toy language. Why the $expletive am I wasting 20-30 and more minutes per week of my life looking for the source of an error!?

Have you seen https://github.com/tomarrell/wrapcheck? It's a linter than does a fairly good job of warning when an error originates from an external package but hasn't been wrapped in your codebase to make it unique or stacktraced. It comes with https://github.com/golangci/golangci-lint and can even be made part of your in-editor LSP diagnostics.

But still, it's not perfect. And so I remain convinced that I'm misunderstanding something fundamental about the language because not being able to consistently find the source of an error is such an egregious failing for a programming language.

[randomdata]

I find it interesting how, as soon as the word error shows up, people seemingly forget how to program.

Ignore the word error for a moment. Think about how you program in the general case, for a hypothetical type T. What is it that you do to to your T values to ensure that you don't have the same problem?

Now do that same thing when T is of the type error. There is nothing special about errors.