README.md

ValidJSONator

ValidJSONator is a basic Go library that takes a Go Validator V10 validation string and converts it into a Schema that can be used in JSONSchema or OpenAPI.

This library is used to share this logic between our other libraries Astra and Confuse, and hopefully will be useful to others.

Installation

go get github.com/ls6-events/validjsonator

Usage

package main

import (
	"reflect"

	"github.com/davecgh/go-spew/spew"
	"github.com/ls6-events/validjsonator"
)

type Example struct {
	ExampleString string  `validate:"required,base64"`
	ExampleInt    int     `validate:"required,min=1,max=10"`
	ExampleFloat  float64 `validate:"required,min=1,max=10"`
}

func main() {
	Example := Example{}
	exampleType := reflect.TypeOf(Example)

	structFieldsSchema := make(map[string]validjsonator.Schema)
	for i := 0; i < exampleType.NumField(); i++ {
		fieldTag := exampleType.Field(i).Tag
		fieldName := exampleType.Field(i).Name

		validationTag := fieldTag.Get("validate")

		validationSchema, _ := validjsonator.ValidationTagsToSchema(validationTag)

		structFieldsSchema[fieldName] = validationSchema
	}

	spew.Dump(structFieldsSchema)
}