print

Go Print Utilities

Simple go package to print and save JSON data. It can print regular JSON and secure JSON by masking sensitive values like passwords and tokens.

Install

go get github.com/goliatone/go-print

Usage

Basic JSON printing:

data := map[string]string{
    "user": "admin",
    "pass": "secret"
}

// Pretty print JSON
str, err := print.PrettyJSON(data)

// Print JSON, returns error message if fails
str := print.MaybePrettyJSON(data)

// Save to file
err := print.SaveJSONFile("data.json", data)

Secure JSON (masks sensitive data):

type User struct {
    Username string `json:"username"`
    Password string `json:"password" mask:"filled4"`  // Will be masked
    APIKey   string `json:"api_key" mask:"filled32"` // Will be masked
}

user := User{
    Username: "admin",
    Password: "secret",
    APIKey:   "1234567890",
}

// Print masked JSON
str, err := print.SecureJSON(user)

// Print masked JSON, returns error message if fails
str := print.MaybeSecureJSON(user)

// Save masked JSON to file
err := print.SaveSecureJSONFile("user.json", user)

HTTP Request/Response printing:

// Print HTTP request as JSON
req, _ := http.NewRequest("POST", "https://api.example.com", nil)
str := print.PrintHTTPRequest(req)

// Print HTTP response as JSON
resp, _ := http.Get("https://api.example.com")
str := print.PrintHTTPResponse(resp)

Features

• Pretty prints JSON with proper indentation
• Masks sensitive data (passwords, tokens, keys)
• Saves JSON to files
• Prints HTTP requests and responses as JSON
• Thread safe
• Handles errors gracefully

Default Masked Fields

These fields are masked by default:

• Password/password
• SigningKey/signing_key
• Authorization/authorization

License

MIT

Copyright (c) 2024 goliatone