urfave/cli VS zap

Can you use a framework like urfavecli https://github.com/urfave/cli? This will auto-update every time it detects a new version from your CLI's GitHub repository

I use https://github.com/urfave/cli for local development over cli parameter inside docker over envs

....\Softwares\go\src\prysm\cmd\prysmctl\checkpointsync\cmd.go:3:8: cannot find package "github.com/urfave/cli/v2" in any of:

urfave/cli - A simple, fast, and fun package for building command line apps in Go;

and probably something else will be added in the future. The final kind of launch command would like to see such djob [options] - command. Command is the command (with arguments to run). -- should separate the arguments of the utility from the arguments of the program to run. There are several excellent solutions for working with command-line arguments, such as spf13/cobra or urfave/cli. But they’re good for building an interface out of a lot of commands, and for one (as in my example) they’re redundant. So I used the flag library. I have defined the following structure with arguments:

There are alternatives available for Cobra as well i.e. mitchellh/cli, go-flags, urfave/cli etc.

https://github.com/urfave/cli - A Golang package used to structure the CLI.

The project currently uses slog package from standard library for logging. But switching to a more advanced logger like zap could offer more flexibility and features.

It's nice to have this in the standard library, but it doesn't solve any existing pain points around structured log metadata and contexts. We use zap [0] and store a zap logger on the request context which allows different parts of the request pipeline to log with things like tenantid, traceId, and correlationId automatically appended. But getting a logger off the context is annoying, leads to inconsistent logging practices, and creates a logger dependency throughout most of our Go code.

[0] https://github.com/uber-go/zap

Kubebuilder, like much of the k8s ecosystem, utilizes zap for logging. Out of the box, the Kubebuilder zap configuration outputs a timestamp for each log, which gets formatted using scientific notation. This makes it difficult for me to read the time of an event just by glancing at it. Personally, I prefer ISO 8601, so let's change it!

What else would you expect from a structured logging package?

To me it absolutely makes sense as the default and standard for 99% of applications, and the API isn't much unlike something like Zap[0] (a popular Go structured logger).

The attributes aren't an "arbitrary" concept, they're a completely normal concept for structured loggers. Groups are maybe less standard, but reasonable nevertheless.

I'm not sure if you're aware that this is specifically a structured logging package. There already is a "simple" logging package[1] in the sodlib, and has been for ages, and isn't particularly fast either to my knowledge. If you want really fast you take a library (which would also make sure to optimize allocations heavily).

[0]: https://pkg.go.dev/go.uber.org/zap

[1]: https://pkg.go.dev/log

And finally for structured logging: https://github.com/uber-go/zap

For logging: I recommend using Uber Zap https://github.com/uber-go/zap It will log stack backtraces and makes it super easy to debug errors when deployed. I typically log in the business logic and not below. And log at the entry for failures to start the system. Maybe not necessary for this example, but it’s an essential piece of any API backend.