https://github.com/golopot/vv

A JSON validation library.
https://github.com/golopot/vv

go json validation

Last synced: 6 months ago
JSON representation

A JSON validation library.

• Host: GitHub
• URL: https://github.com/golopot/vv
• Owner: golopot
• License: mit
• Created: 2020-05-18T08:49:10.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2021-01-04T08:25:20.000Z (over 5 years ago)
• Last Synced: 2025-01-18T02:54:28.194Z (over 1 year ago)
• Topics: go, json, validation
• Language: Go
• Homepage:
• Size: 11.7 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# VV

[![GoDoc](https://pkg.go.dev/badge/github.com/golopot/vv)](https://pkg.go.dev/github.com/golopot/vv)

A json validation library.

- Get json value and validate json at the same time.

- Concise usage.

- Practical error handling.

- Customizable error message.

## Features

- Optional fields and default value

- Disallow extra object fields

- User defined validators

- Customizable error message

## Example

```go

package main

import (

	"fmt"

	"github.com/golopot/vv"

)

func main() {

	v := vv.New([]byte(`

{

	"a": 1,

	"b": "sss"

}

`))

    a := v.Int("a").Done()

	z := v.String("z").Default("some-string").Done() // `z` is optional

	wrong := v.Int("wrong").Done() // fails validation

	fmt.Println(a, z, wrong) // 1 "some-string" 0

	// v.ValidationError() stores the first error occured

	if err := v.ValidationError(); err != nil {

        fmt.Println("error:", err)

        // error: property `wrong` should be int

		return

	}

}

```

## License

MIT