Trait Redactor 

pub trait Redactor {
    // Required method
    fn apply(&self, path: &str, current: &Value) -> Value;
}

Available on crate feature redaction only.

Trait for types that can be used to redact values.

This trait defines how a redactor transforms a value at a given path. Implementations receive both the concrete JSON Pointer path and the current value, allowing for path-aware or value-based transformations.

Implementations

• &str - Replace with a static string
• String - Replace with a string
• serde_json::Value - Replace with a JSON value
• Fn(&str, &Value) -> Value - Transform using a function

Examples

// Static replacement
.redact("/id", "stable-uuid")?

// Value-based transformation (ignore path)
.redact("$..notes", |_path, val| {
    if val.as_str().map(|s| s.len() > 50).unwrap_or(false) {
        serde_json::json!("[REDACTED]")
    } else {
        val.clone()
    }
})?

// Path-aware transformation
.redact("$.items[*].id", |path, _val| {
    let idx = path.split('/').nth(2).unwrap_or("0");
    serde_json::json!(format!("stable-id-{idx}"))
})?

Required Methods

fn apply(&self, path: &str, current: &Value) -> Value

Apply the redaction to a value at the given path.

Arguments

• path - The concrete JSON Pointer path (e.g., /items/0/id)
• current - The current value at that path

Returns

The new value to replace the current one.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Redactor for &str

fn apply(&self, _path: &str, _current: &Value) -> Value

impl Redactor for String

fn apply(&self, _path: &str, _current: &Value) -> Value

impl Redactor for Value

fn apply(&self, _path: &str, _current: &Value) -> Value

Implementors

impl<F> Redactor for F

where F: Fn(&str, &Value) -> Value,