https://github.com/emptyless/nullify

Return the pointer version of any input (including changing the fields of structs to pointer versions)
https://github.com/emptyless/nullify

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Return the pointer version of any input (including changing the fields of structs to pointer versions)

• Host: GitHub
• URL: https://github.com/emptyless/nullify
• Owner: Emptyless
• License: mit
• Created: 2024-03-27T08:25:19.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-06-10T11:00:33.000Z (12 months ago)
• Last Synced: 2024-06-22T03:39:34.747Z (11 months ago)
• Language: Go
• Size: 13.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Nullify

Returns the pointer version of any input recursively including e.g. field structs (while retaining tags). This is especially

useful in e.g. JSON serialization/deserialization in combination with a struct validator to check if a field was sent or not

without changing the struct.

## Install

Use `github.com/Emptyless/nullify` to download the latest version.

## Example

To quickly get up and running, run e.g. the following:

```go

package main

import (

	"encoding/json"

	"fmt"

	"github.com/go-playground/validator/v10"

)

type Person struct {

	Name string `json:"name" validate:"required"`

}

func main() {

	input := []byte("")

	person := Person{}

	p := Nullify(person)

	_ = json.Unmarshal(input, p)

	err := validator.New().Struct(p)

	fmt.Println(err)

	// Output:

	// Key: 'Name' Error:Field validation for 'Name' failed on the 'required' tag

}

```

For the full example, see  `/example` for an example with [go-playground/validator](https://github.com/go-playground/validator).