Function calculate_record_hash 

pub fn calculate_record_hash<T: Serialize>(data: &T) -> String

Calculate SHA-256 hash of a record’s data fields.

This function serializes the record’s spec to JSON and calculates a SHA-256 hash. The hash is used to detect actual data changes and avoid unnecessary DNS updates.

Arguments

• record - The record to hash (must implement Serialize)

Returns

A hexadecimal string representation of the SHA-256 hash.

Example

use bindy::ddns::calculate_record_hash;
use bindy::crd::{ARecord, ARecordSpec};
use k8s_openapi::apimachinery::pkg::apis::meta::v1::ObjectMeta;

let record = ARecord {
    metadata: ObjectMeta::default(),
    spec: ARecordSpec {
        name: "www".to_string(),
        ipv4_addresses: vec!["192.0.2.1".to_string()],
        ttl: Some(300),
    },
    status: None,
};

let hash = calculate_record_hash(&record.spec);
assert_eq!(hash.len(), 64); // SHA-256 produces 64 hex chars