Function add_rule 

pub fn add_rule(
    config_json: &str,
    id: i64,
    rule_config: &Value,
) -> Result<(String, i64)>

Add a new rule to the configuration

Arguments

• config_json - Configuration JSON string
• rule_config - JSON configuration for the rule (must include ERRULE_CODE)

Returns

Returns (modified_config, new_rule_id) tuple on success

Example

use sz_configtool_lib::rules;
use serde_json::json;

let config = r#"{"G2_CONFIG": {"CFG_ERRULE": []}}"#;
let rule_config = json!({
    "ERRULE_CODE": "CUSTOM_RULE",
    "RESOLVE": "Yes",
    "RELATE": "No",
    "RTYPE_ID": 1
});
// ID parameter is required (0 for auto-assign, >0 for specific ID)
let (_modified, _rule_id) = rules::add_rule(config, 0, &rule_config).unwrap();