easyjson
ozzo-validation
easyjson | ozzo-validation | |
---|---|---|
10 | 13 | |
4,350 | 3,574 | |
0.8% | 1.1% | |
2.3 | 0.0 | |
7 days ago | about 1 month ago | |
Go | Go | |
MIT License | MIT License |
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easyjson
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Google's Go may add telemetry reporting that's on by default
Compile time means you catch issues at... well compile time. It also means that the code is optimized. You can look at the performance different between encoding/json and easyjson for why you may desire that.
- JSON encoder/decoder supporting omitempty on structs
- TinyGo Reflection?
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Wasm difficulties in Rust, Haskell, and Go
easyjson produced an empty file
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Using a json lib other than encoding/json
There is https://github.com/mailru/easyjson out there if you are absolutely sure that serialization is the bottleneck. Otherwise I'd go for stdlib.
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What type of software do you write at your workplace?
https://github.com/mailru/easyjson fast JSON (de)serializer which go generates code instead of using reflect at runtime.
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Whats the fastest JSON unmarshaling package as of right now?
If you know the schema of the JSON ahead of time and you need to parse the whole object, I would recommend https://github.com/mailru/easyjson as that will likely give you the fastest result. This works in almost all use cases, and easy to use features such as string interning can save you a lot of time on memory allocation if you parse a lot of JSON objects with identical values.
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Some Go(lang) tips
What to use Easyjson is about the top of the pack and it's straightforward. The downside of efficient tools is that they use code generation to create the code required to turn your structs into json to minimise allocations. This is a manual build step which is annoying. Interestingly json-iterator also uses reflection but it's significantly faster. I suspect black magic.
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Is there a JSON parsing library that generates specialized code for types?
I'm looking for something similar to https://github.com/mailru/easyjson where one can generate a concrete JSON parser for some types.
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Обережно кодогенерація
Бібліотека easyjson теж для серіалізації працює через додатковий код замість використання рефлексії. Але після внесення в easyjson одної з оптимізацій, час від часу почали отримувати зламаний JSON, ось приклад тесту який покаже помилку.
ozzo-validation
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Is there any equivalent to pydantic, serde, etc?
go-ozzo/ozzo-validation
- Request Validations in Go REST API
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Suggestion for a dynamic Struct Validation Rules
https://github.com/go-ozzo/ozzo-validation Seems to do what I need but likely will need some convoluted reflection to build out the rules. Also likely some custom rules to be written which is okay since it's a one time cost and reuse in the expressions.
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Proper validation package suggestion
Personally I use ozzo validation: https://github.com/go-ozzo/ozzo-validation
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Valgo is a type-safe, expressive, and extensible validator library for Golang.
This looks useful, but what differentiates it from something like https://github.com/go-ozzo/ozzo-validation ? Why would I use Valgo over something battle tested that follows a very similar pattern?
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Why use go over node?
This is where it gets spicy: I just don't get at all who ever though this struct-tag based validation library was a good idea https://github.com/go-playground/validator - and yet it's the most mainstream one. Try to implement your own type, you're up to register some global validation tag and repeat it every time you're using that type. I'm grateful https://github.com/go-ozzo/ozzo-validation exists, that's what I use. But it's still way behind the other things I mention, where in general, it's simply not possible to pass around an invalid struct - because it can't be built if it's invalid in the first place.
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Gin vs Echo framework
Gin comes with built-in "validation", while Echo recommends the same validator. I am also not a fan of magic struct tags, so I would probably prefer either writing my own or using something like ozzo.
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What type of software do you write at your workplace?
Other packages of note: https://github.com/uber-go/zap https://github.com/go-ozzo/ozzo-validation
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is there any package to generate validation code for struct instead of using reflect (tags)?
Does https://github.com/go-ozzo/ozzo-validation meet your requirements?
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How do you validate your structures?
https://github.com/go-ozzo/ozzo-validation/blob/v3.6.0/struct.go#L61
What are some alternatives?
fastjson - Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection
validator - :100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
jsoniter - A high-performance 100% compatible drop-in replacement of "encoding/json"
Password validator library for Go - Flexible and customizable password validation
go-json - Fast JSON encoder/decoder compatible with encoding/json for Go
govalidator - [Go] Package of validators and sanitizers for strings, numerics, slices and structs
gogoprotobuf - [Deprecated] Protocol Buffers for Go with Gadgets
Validate - ⚔ Go package for data validation and filtering. support Map, Struct, Form data. Go通用的数据验证与过滤库,使用简单,内置大部分常用验证、过滤器,支持自定义验证器、自定义消息、字段翻译。
simdjson-go - Golang port of simdjson: parsing gigabytes of JSON per second
protoc-gen-validate - Protocol Buffer Validation - Being replaced by github.com/bufbuild/protovalidate
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
postcode - Small Golang package for validating postal codes