flutter and macos work

veilid-core/src/veilid_api/serialize_helpers.rs

@@ -1,24 +1,40 @@
 use super::*;
+use core::fmt::Debug;
 
-pub fn deserialize_json<'a, T: de::Deserialize<'a>>(
+#[instrument(level = "trace", ret, err)]
+pub fn deserialize_json<'a, T: de::Deserialize<'a> + Debug>(
     arg: &'a str,
-) -> Result<T, super::VeilidAPIError> {
+) -> Result<T, VeilidAPIError> {
     serde_json::from_str(arg).map_err(|e| VeilidAPIError::ParseError {
         message: e.to_string(),
-        value: String::new(),
+        value: format!(
+            "deserialize_json:\n---\n{}\n---\n to type {}",
+            arg,
+            std::any::type_name::<T>()
+        ),
     })
 }
 
-pub fn deserialize_opt_json<T: de::DeserializeOwned>(
+#[instrument(level = "trace", ret, err)]
+pub fn deserialize_opt_json<T: de::DeserializeOwned + Debug>(
     arg: Option<String>,
 ) -> Result<T, VeilidAPIError> {
-    let arg = arg.ok_or_else(|| VeilidAPIError::ParseError {
+    let arg = arg.as_ref().ok_or_else(|| VeilidAPIError::ParseError {
         message: "invalid null string".to_owned(),
-        value: String::new(),
+        value: format!(
+            "deserialize_json_opt: null to type {}",
+            std::any::type_name::<T>()
+        ),
     })?;
-    deserialize_json(&arg)
+    deserialize_json(arg)
 }
 
-pub fn serialize_json<T: Serialize>(val: T) -> String {
-    serde_json::to_string(&val).expect("failed to serialize json value")
+#[instrument(level = "trace", ret)]
+pub fn serialize_json<T: Serialize + Debug>(val: T) -> String {
+    match serde_json::to_string(&val) {
+        Ok(v) => v,
+        Err(e) => {
+            panic!("failed to serialize json value: {}\nval={:?}", e, val);
+        }
+    }
 }