Add some additional logging for mapper validation

v-api/src/context/mapping.rs

@@ -61,8 +61,14 @@ where
 
     pub fn validate(&self, value: &Value) -> bool {
         match &self.engine {
-            Some(engine) => engine.validate_mapping_data(value),
-            None => false,
+            Some(engine) => {
+                tracing::trace!(?value, "Validating mapping rule");
+                engine.validate_mapping_data(value)
+            }
+            None => {
+                tracing::warn!("No mapping rule is installed to validate rules");
+                false
+            }
         }
     }
 

v-api/src/mapper/mod.rs

@@ -12,6 +12,7 @@ use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 use std::{collections::BTreeSet, error::Error as StdError, fmt::Debug};
+use tap::TapFallible;
 use thiserror::Error;
 use v_model::{
     AccessGroupId, Mapper,
@@ -138,6 +139,10 @@ where
     }
 
     fn validate_mapping_data(&self, value: &Value) -> bool {
-        serde_json::from_value::<MappingRulesData<T>>(value.clone()).is_ok()
+        serde_json::from_value::<MappingRulesData<T>>(value.clone())
+            .tap_err(|err| {
+                tracing::warn!(?value, ?err, "Failed to parse mapping rule");
+            })
+            .is_ok()
     }
 }