viper VS mapstructure

Compare viper vs mapstructure and see what are their differences.

viper

Go configuration with fangs (by spf13)

mapstructure

Go library for decoding generic map values into native Go structures and vice versa. (by mitchellh)
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viper mapstructure
74 16
26,405 7,851
- -
9.2 0.0
1 day ago 25 days ago
Go Go
MIT License MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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.

viper

Posts with mentions or reviews of viper. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-22.

mapstructure

Posts with mentions or reviews of mapstructure. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-06.
  • How do I marshal a JSON array into a map?
    1 project | /r/golang | 7 Dec 2023
  • Is there any equivalent to pydantic, serde, etc?
    8 projects | /r/golang | 6 Dec 2023
    Maybe https://github.com/mitchellh/mapstructure can do what you want? It has some options for Remainder Values and Omit Empty
  • Struggling to get JSON response data into usable struct
    2 projects | /r/golang | 6 Jul 2023
    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.
  • Return unstructed db rows to struct
    1 project | /r/golang | 25 May 2023
    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.
  • Trying to print JSON data from a file
    1 project | /r/golang | 22 Oct 2022
    Alternatively, you could try https://github.com/mitchellh/mapstructure if you don't know what your incoming structure is
  • How to ensure required fields in struct consistently?
    4 projects | /r/golang | 17 Aug 2022
    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.
  • Question about Unmarshalling
    3 projects | /r/golang | 19 Jul 2022
    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
  • What type of software do you write at your workplace?
    33 projects | /r/golang | 17 Jan 2022
    https://github.com/mitchellh/mapstructure because we have JSON documents which contain rugged arrays ;-)
  • Help with mapstructure.Decode()
    1 project | /r/golang | 17 Dec 2021
    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:
  • map[string]interface{} decoder
    4 projects | /r/golang | 30 Oct 2021
    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.

What are some alternatives?

When comparing viper and mapstructure you can also consider the following projects:

godotenv - A Go port of Ruby's dotenv library (Loads environment variables from .env files)

jsoniter - A high-performance 100% compatible drop-in replacement of "encoding/json"

envconfig - Small library to read your configuration from environment variables

goprotobuf - Go support for Google's protocol buffers

koanf - Simple, extremely lightweight, extensible, configuration management library for Go. Support for JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

gogoprotobuf - [Deprecated] Protocol Buffers for Go with Gadgets

cleanenv - ‚ú®Clean and minimalistic environment configuration reader for Golang

structomap - Easily and dynamically generate maps from Go static structures

kelseyhightower/envconfig - Golang library for managing configuration data from environment variables

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.

ini - Package ini provides INI file read and write functionality in Go

go-serializer - :loop: Serialize any custom type or convert any content to []byte or string, for Go Programming Language

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