rdeusser / slipscheme

Json Schema to Go Struct conversion tool

slipscheme

Simple tool to convert JSON schemas to Go types

Download

Download the binaries from the latest release.

You can also run it from super-minimal docker image as well (only 6M). It would be run like:

docker run -i --rm -v $(pwd):/work rdeusser/slipscheme:latest

Usage

Usage of slipscheme:
  -dir string
        output directory for go files (default ".")
  -fmt
        pass code through gofmt (default true)
  -overwrite
        force overwriting existing go files
  -pkg string
        package namespace for go files (default "main")
  -stdout
        print go code to stdout rather than files

By default slipscheme will print go code to a file, one per type.

Example

See the sample.json file checked into git and this is what slipscheme will generate:

$ ./slipscheme -stdout sample.json
type Address struct {
        City    string `json:"city,omitempty" yaml:"city,omitempty"`
        State   string `json:"state,omitempty" yaml:"state,omitempty"`
        Street  string `json:"street,omitempty" yaml:"street,omitempty"`
        Zipcode int    `json:"zipcode,omitempty" yaml:"zipcode,omitempty"`
}

type Phone struct {
        AreaCode    string `json:"area-code,omitempty" yaml:"area-code,omitempty"`
        CountryCode string `json:"country-code,omitempty" yaml:"country-code,omitempty"`
        Number      string `json:"number,omitempty" yaml:"number,omitempty"`
}

type Phones []*Phone

type Contact struct {
        EmailAddress []string `json:"email-address,omitempty" yaml:"email-address,omitempty"`
        HomeAddress  *Address `json:"home-address,omitempty" yaml:"home-address,omitempty"`
        Name         string   `json:"name,omitempty" yaml:"name,omitempty"`
        Phone        Phones   `json:"phone,omitempty" yaml:"phone,omitempty"`
        WorkAddress  *Address `json:"work-address,omitempty" yaml:"work-address,omitempty"`
}

Otherwise, you can run slipscheme to generate the type files:

$ ./slipscheme -dir out sample.json

$ ls -1 out
Address.go
Contact.go
Phone.go
Phones.go

$ cat out/Phone.go
package test

/////////////////////////////////////////////////////////////////////////
// This Code is Generated by SlipScheme Project:
// https://github.com/rdeusser/slipscheme
//
// Generated with command: ./slipscheme -dir out -pkg test sample.json
/////////////////////////////////////////////////////////////////////////
//                            DO NOT EDIT                              //
/////////////////////////////////////////////////////////////////////////

type Phone struct {
        AreaCode    string `json:"area-code,omitempty" yaml:"area-code,omitempty"`
        CountryCode string `json:"country-code,omitempty" yaml:"country-code,omitempty"`
        Number      string `json:"number,omitempty" yaml:"number,omitempty"`
}