jennifer
zap
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jennifer
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How to minimize RAM usage during Go binary compilation
We have a repo/library called fasten-sources which is made up of mostly generated code (using dave/jennifer)
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Golang’s best-kept secret: ‘executable examples’
Check out my https://github.com/dave/rebecca package for a neat way of building readme docs by embedding Go docs and examples. It generates the readme for https://github.com/dave/jennifer (see https://github.com/dave/jennifer/blob/master/README.md.tpl).
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Designing a config API for microservices applications built using Go
The design of the wrapper functions meant we couldn’t easily unmarshal the CUE value into the wrapper functions. This meant we needed to generate unmarshalled functions for the config types. We use the excellent Jennifer library by Dave (no really; github.com/dave/jennifer) for generating Go files.
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Simple code generator tools to explore inner workings of?
I've used https://github.com/dave/jennifer in the past, and been very happy with it.
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How to choose a golang template rending engine for my project?
If specifically for generating Go code, I would suggest you take a look at Jennifer.
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Boilerplate for experienced devs
I just spent a few hours writing a crapload of boilerplate code generation code with jennifer, if that helps any.
zap
- Desvendando o package fmt do Go
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Building RESTful API with Hexagonal Architecture in Go
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.
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Structured Logging with Slog
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
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Kubebuilder Tips and Tricks
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!
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Go 1.21 Released
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
- Efficient logging in Go?
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Why elixir over Golang
And finally for structured logging: https://github.com/uber-go/zap
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Beginner-friendly API made with Go following hexagonal architecture.
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.
- slogx - slog package extensions and middlewares
- Why it is so weirdo??
What are some alternatives?
Anakin - Codegeneration tool for isomorphic server and mobile Go apps with gRPC & Protobuf. Share code between your backend, Android & iOS app! :sun_with_face:
logrus - Structured, pluggable logging for Go.
gen - Type-driven code generation for Go
zerolog - Zero Allocation JSON Logger
go-linq - .NET LINQ capabilities in Go
slog
efaceconv
glog - Leveled execution logs for Go
interfaces - Code generation tools for Go.
go-log - a golang log lib supports level and multi handlers
goverter - Generate type-safe Go converters by simply defining an interface
log - Structured logging package for Go.