null
easyjson
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null | easyjson | |
---|---|---|
5 | 10 | |
1,747 | 4,348 | |
- | 1.4% | |
5.6 | 2.3 | |
3 months ago | 10 days ago | |
Go | Go | |
BSD 2-clause "Simplified" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
null
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JSON encoder/decoder supporting omitempty on structs
Use-case: working on PATCH requests, the body may or may not contain nullable values. I am using guregu/null and I can't use a pointer because if the json contains "null" as a value, the pointer will be set to nil in the struct, instead of a value representing the presence of null. In short I can't differentiate the absence of the field in the request from the presence of the field with a null value.
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Nilable - finally a way to stop using pointers just to get the nil state
https://github.com/guregu/null is an awesome package implementing most SQL scanner Interfaces plus JSON
- Golang backend with lots of raw SQL queries
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Is there a downside to treating possible null values in DB as pointers in struct?
There’s also this: https://github.com/guregu/null
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Gonion - Golang Client for querying Tor network data
Unfortunately in Go, switching to *bool makes the api a little more awkward to use since users that need to set true or false have to define a local variable then use a pointer to that. Another option would be something like null, but that adds a dependency to your currently-dependency-free project. If anyone has a better solution to this pattern, I'd love to hear it.
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.
What are some alternatives?
csvutil - csvutil provides fast and idiomatic mapping between CSV and Go (golang) values.
fastjson - Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection
validator - Simple validation for Rust structs
jsoniter - A high-performance 100% compatible drop-in replacement of "encoding/json"
react-leaflet-canvas-overlay - React Leaflet component similar to ImageOverlay and VideoOverlay
go-json - Fast JSON encoder/decoder compatible with encoding/json for Go
gh-token - Manage installation access tokens for GitHub apps from your terminal 💻
gogoprotobuf - [Deprecated] Protocol Buffers for Go with Gadgets
firebase-rules - A type-safe Firebase Real-time Database Security Rules builder. Compose and re-use common rules. Reference constants used throughout the project. Catch any errors and typos. Auto-completion.
simdjson-go - Golang port of simdjson: parsing gigabytes of JSON per second
trdsql - CLI tool that can execute SQL queries on CSV, LTSV, JSON, YAML and TBLN. Can output to various formats.
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.