feat(connector): [Trustpay] add webhooks (payment and refund events) (#746)

Co-authored-by: Sangamesh <sangamesh.kulkarni@juspay.in>
Co-authored-by: sai harsha <sai.harsha@sai.harsha-MacBookPro>
Co-authored-by: Arun Raj M <jarnura47@gmail.com>

crates/router/src/connector/utils.rs

@@ -487,3 +487,41 @@ where
     })?;
     serializer.serialize_f64(float_value)
 }
+
+pub fn collect_values_by_removing_signature(
+    value: &serde_json::Value,
+    signature: &String,
+) -> Vec<String> {
+    match value {
+        serde_json::Value::Null => vec!["null".to_owned()],
+        serde_json::Value::Bool(b) => vec![b.to_string()],
+        serde_json::Value::Number(n) => match n.as_f64() {
+            Some(f) => vec![format!("{:.2}", f)],
+            None => vec![n.to_string()],
+        },
+        serde_json::Value::String(s) => {
+            if signature == s {
+                vec![]
+            } else {
+                vec![s.clone()]
+            }
+        }
+        serde_json::Value::Array(arr) => arr
+            .iter()
+            .flat_map(|v| collect_values_by_removing_signature(v, signature))
+            .collect(),
+        serde_json::Value::Object(obj) => obj
+            .values()
+            .flat_map(|v| collect_values_by_removing_signature(v, signature))
+            .collect(),
+    }
+}
+
+pub fn collect_and_sort_values_by_removing_signature(
+    value: &serde_json::Value,
+    signature: &String,
+) -> Vec<String> {
+    let mut values = collect_values_by_removing_signature(value, signature);
+    values.sort();
+    values
+}