mapstructure
jsonparser
mapstructure | jsonparser | |
---|---|---|
16 | 15 | |
7,750 | 5,364 | |
- | - | |
0.0 | 0.0 | |
2 months ago | 3 months ago | |
Go | Go | |
MIT License | MIT License |
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mapstructure
- How do I marshal a JSON array into a map?
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Is there any equivalent to pydantic, serde, etc?
Maybe https://github.com/mitchellh/mapstructure can do what you want? It has some options for Remainder Values and Omit Empty
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Struggling to get JSON response data into usable struct
I've tried using mapstructure to then marshal the map fields into a struct which mostly works (it struggles with times and custom time types which requires a workaround for each case), but this doesn't feel very idiomatic and requires two passes at marshaling.
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Return unstructed db rows to struct
Although some orders may have more records maybe a superset can be indentified that you can actually create a struct of it and after gathereing first all values into a map then convert it to a struct maybe using a library like https://github.com/mitchellh/mapstructure . this way you can at least isolate the non structured data only on the data extraction part and the rest of your application can work with well formed structs.
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Trying to print JSON data from a file
Alternatively, you could try https://github.com/mitchellh/mapstructure if you don't know what your incoming structure is
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How to ensure required fields in struct consistently?
I'm doing it by validating a map[string]any first then putting it into a structure using mapstructure. It covers most use-cases and offers the most flexibility, at the expense of a bit of performance.
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Question about Unmarshalling
That said, it is possible to do this with JSON using something like https://github.com/tidwall/gjson or if you are fine with the switch statement but don't want to marshal and unmarshal again: https://github.com/mitchellh/mapstructure
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What type of software do you write at your workplace?
https://github.com/mitchellh/mapstructure because we have JSON documents which contain rugged arrays ;-)
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Help with mapstructure.Decode()
I've been using mapstructure.Decode to great effect, but currently can't figure out why a given mapping doesn't work. I'd appreciate it if someone could point out wtf I'm doing wrong or at least in the right direction:
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map[string]interface{} decoder
What do you mean by "decode"? I've used https://github.com/mitchellh/mapstructure but that doesn't quite look like what you're doing.
jsonparser
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Introducing astjson: Transform and Merge JSON Objects with Unmatched Speed in Go
In this article, I will introduce you to a new package called astjson that I have been working on for the last couple of weeks. It is a Go package that allows you to transform and merge JSON objects with unmatched speed. It is based on the jsonparser package by buger aka Leonid Bugaev and extends it with the ability to transform and merge JSON objects at unparalleled performance.
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What's the best way to unmarshall this nested JSON?
Use this to extract the data value, and handle/unmarshal it accordingly.
- Modification of json string without deserialisation into map/struct
- Christmas giveaway: 10 copies of my book Domain-driven Design with Golang book, also AMA
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Wasm difficulties in Rust, Haskell, and Go
jsonparser can decode, but can't encode
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Is there a way to parse unstructured data?
Best I've found is this: https://github.com/buger/jsonparser
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Why the heck am I getting an empty byte array trying to read a simple json file?
I was actually just trying to get it into a []byte to use this package which claims it works well for unknown data structures.
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Zq: An Easier (and Faster) Alternative to Jq
`jj` is a little tool I wrote that uses https://github.com/buger/jsonparser
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Whats the fastest JSON unmarshaling package as of right now?
If you don't know the schema or you only need to access one or two fields in a much larger JSON object, I would recommend https://github.com/buger/jsonparser as it provides an easy API to access specific values without fully unmarshaling. This is an unusual use case though, 9 times out of 10 I would tend to use easyjson.
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map[string]interface{} decoder
Reading and navigating arbitrary JSON: I've used https://github.com/tidwall/gjson, many others like https://github.com/buger/jsonparser are also out there.
What are some alternatives?
jsoniter - A high-performance 100% compatible drop-in replacement of "encoding/json"
fastjson - Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection
viper - Go configuration with fangs
ej - Write and read JSON from different sources in one line
goprotobuf - Go support for Google's protocol buffers
mapslice-json - Go MapSlice for ordered marshal/ unmarshal of maps in JSON
gogoprotobuf - [Deprecated] Protocol Buffers for Go with Gadgets
ojg - Optimized JSON for Go
structomap - Easily and dynamically generate maps from Go static structures
json-to-proto.github.io - convert JSON to Protocol Buffers online in your browser instantly
go-capnproto - Cap'n Proto library and parser for go. This is go-capnproto-1.0, and does not have rpc. See https://github.com/zombiezen/go-capnproto2 for 2.0 which has rpc and capabilities.
GJSON - Get JSON values quickly - JSON parser for Go