diff --git a/Cargo.lock b/Cargo.lock
index c9dc91badd04..9a80d864b6ca 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1106,7 +1106,6 @@ dependencies = [
  "num-bigint",
  "once_cell",
  "pin-project",
- "psl",
  "quaint",
  "serde",
  "serde-wasm-bindgen",
@@ -1118,6 +1117,7 @@ dependencies = [
  "uuid",
  "wasm-bindgen",
  "wasm-bindgen-futures",
+ "web-sys",
 ]
 
 [[package]]
diff --git a/psl/psl-core/src/datamodel_connector.rs b/psl/psl-core/src/datamodel_connector.rs
index 242f0df20b7c..dc3a7e80bd10 100644
--- a/psl/psl-core/src/datamodel_connector.rs
+++ b/psl/psl-core/src/datamodel_connector.rs
@@ -361,10 +361,7 @@ pub trait Connector: Send + Sync {
     }
 }
 
-#[cfg_attr(target_arch = "wasm32", wasm_bindgen::prelude::wasm_bindgen)]
-#[derive(Copy, Clone, Debug, PartialEq, Default, serde::Deserialize)]
 pub enum Flavour {
-    #[default]
     Cockroach,
     Mongo,
     Sqlserver,
diff --git a/query-engine/driver-adapters/Cargo.toml b/query-engine/driver-adapters/Cargo.toml
index ec77df85e142..23244ab7dcb4 100644
--- a/query-engine/driver-adapters/Cargo.toml
+++ b/query-engine/driver-adapters/Cargo.toml
@@ -8,7 +8,6 @@ async-trait = "0.1"
 once_cell = "1.15"
 serde.workspace = true
 serde_json.workspace = true
-psl.workspace = true
 tracing = "0.1"
 tracing-core = "0.1"
 metrics = "0.18"
@@ -21,6 +20,7 @@ num-bigint = "0.4.3"
 bigdecimal = "0.3.0"
 chrono = "0.4.20"
 futures = "0.3"
+web-sys = "0.3.65"
 
 [dev-dependencies]
 expect-test = "1"
diff --git a/query-engine/driver-adapters/src/queryable/mod.rs b/query-engine/driver-adapters/src/queryable/mod.rs
index ac252bbb011b..9cd2eb1c9b33 100644
--- a/query-engine/driver-adapters/src/queryable/mod.rs
+++ b/query-engine/driver-adapters/src/queryable/mod.rs
@@ -19,11 +19,11 @@ pub(crate) use wasm::JsBaseQueryable;
 use super::{
     conversion,
     proxy::{CommonProxy, DriverProxy, Query},
+    types::AdapterFlavour,
 };
 use crate::send_future::SendFuture;
 use async_trait::async_trait;
 use futures::Future;
-use psl::datamodel_connector::Flavour;
 use quaint::{
     connector::{metrics, IsolationLevel, Transaction},
     error::{Error, ErrorKind},
@@ -34,17 +34,16 @@ use tracing::{info_span, Instrument};
 
 impl JsBaseQueryable {
     pub(crate) fn new(proxy: CommonProxy) -> Self {
-        let flavour: Flavour = proxy.flavour.parse().unwrap();
+        let flavour: AdapterFlavour = proxy.flavour.parse().unwrap();
         Self { proxy, flavour }
     }
 
     /// visit a quaint query AST according to the flavour of the JS connector
     fn visit_quaint_query<'a>(&self, q: QuaintQuery<'a>) -> quaint::Result<(String, Vec<quaint::Value<'a>>)> {
         match self.flavour {
-            Flavour::Mysql => visitor::Mysql::build(q),
-            Flavour::Postgres => visitor::Postgres::build(q),
-            Flavour::Sqlite => visitor::Sqlite::build(q),
-            _ => unimplemented!("Unsupported flavour for JS connector {:?}", self.flavour),
+            AdapterFlavour::Mysql => visitor::Mysql::build(q),
+            AdapterFlavour::Postgres => visitor::Postgres::build(q),
+            AdapterFlavour::Sqlite => visitor::Sqlite::build(q),
         }
     }
 
@@ -52,10 +51,9 @@ impl JsBaseQueryable {
         let sql: String = sql.to_string();
 
         let converter = match self.flavour {
-            Flavour::Postgres => conversion::postgres::value_to_js_arg,
-            Flavour::Sqlite => conversion::sqlite::value_to_js_arg,
-            Flavour::Mysql => conversion::mysql::value_to_js_arg,
-            _ => unreachable!("Unsupported flavour for JS connector {:?}", self.flavour),
+            AdapterFlavour::Postgres => conversion::postgres::value_to_js_arg,
+            AdapterFlavour::Sqlite => conversion::sqlite::value_to_js_arg,
+            AdapterFlavour::Mysql => conversion::mysql::value_to_js_arg,
         };
 
         let args = values
@@ -127,7 +125,7 @@ impl QuaintQueryable for JsBaseQueryable {
             return Err(Error::builder(ErrorKind::invalid_isolation_level(&isolation_level)).build());
         }
 
-        if self.flavour == Flavour::Sqlite {
+        if self.flavour == AdapterFlavour::Sqlite {
             return match isolation_level {
                 IsolationLevel::Serializable => Ok(()),
                 _ => Err(Error::builder(ErrorKind::invalid_isolation_level(&isolation_level)).build()),
@@ -140,9 +138,8 @@ impl QuaintQueryable for JsBaseQueryable {
 
     fn requires_isolation_first(&self) -> bool {
         match self.flavour {
-            Flavour::Mysql => true,
-            Flavour::Postgres | Flavour::Sqlite => false,
-            _ => unreachable!(),
+            AdapterFlavour::Mysql => true,
+            AdapterFlavour::Postgres | AdapterFlavour::Sqlite => false,
         }
     }
 }
diff --git a/query-engine/driver-adapters/src/queryable/wasm.rs b/query-engine/driver-adapters/src/queryable/wasm.rs
index 867d1fb5081a..ee1c65a81347 100644
--- a/query-engine/driver-adapters/src/queryable/wasm.rs
+++ b/query-engine/driver-adapters/src/queryable/wasm.rs
@@ -1,6 +1,6 @@
+use crate::types::AdapterFlavour;
 use crate::wasm::proxy::{CommonProxy, DriverProxy};
 use crate::{JsObjectExtern, JsQueryable};
-use psl::datamodel_connector::Flavour;
 use wasm_bindgen::prelude::wasm_bindgen;
 
 /// A JsQueryable adapts a Proxy to implement quaint's Queryable interface. It has the
@@ -16,10 +16,9 @@ use wasm_bindgen::prelude::wasm_bindgen;
 /// into a `quaint::connector::result_set::ResultSet`. A quaint `ResultSet` is basically a vector
 /// of `quaint::Value` but said type is a tagged enum, with non-unit variants that cannot be converted to javascript as is.
 #[wasm_bindgen(getter_with_clone)]
-#[derive(Default)]
 pub(crate) struct JsBaseQueryable {
     pub(crate) proxy: CommonProxy,
-    pub flavour: Flavour,
+    pub flavour: AdapterFlavour,
 }
 
 pub fn from_wasm(driver: JsObjectExtern) -> JsQueryable {
diff --git a/query-engine/driver-adapters/src/types.rs b/query-engine/driver-adapters/src/types.rs
index 2b2c0b45e50c..8975e7cd9044 100644
--- a/query-engine/driver-adapters/src/types.rs
+++ b/query-engine/driver-adapters/src/types.rs
@@ -1,5 +1,7 @@
 #![allow(unused_imports)]
 
+use std::str::FromStr;
+
 #[cfg(not(target_arch = "wasm32"))]
 use napi::bindgen_prelude::{FromNapiValue, ToNapiValue};
 
@@ -9,6 +11,28 @@ use tsify::Tsify;
 use crate::conversion::JSArg;
 use serde::{Deserialize, Serialize};
 
+#[cfg_attr(target_arch = "wasm32", derive(Serialize, Deserialize, Tsify))]
+#[cfg_attr(target_arch = "wasm32", tsify(into_wasm_abi, from_wasm_abi))]
+#[derive(Debug, Eq, PartialEq, Clone)]
+pub enum AdapterFlavour {
+    Mysql,
+    Postgres,
+    Sqlite,
+}
+
+impl FromStr for AdapterFlavour {
+    type Err = String;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s {
+            "postgres" => Ok(Self::Postgres),
+            "mysql" => Ok(Self::Mysql),
+            "sqlite" => Ok(Self::Sqlite),
+            _ => Err(format!("Unsupported adapter flavour: {:?}", s)),
+        }
+    }
+}
+
 /// This result set is more convenient to be manipulated from both Rust and NodeJS.
 /// Quaint's version of ResultSet is:
 ///
@@ -27,7 +51,7 @@ use serde::{Deserialize, Serialize};
 #[cfg_attr(target_arch = "wasm32", derive(Serialize, Deserialize, Tsify))]
 #[cfg_attr(target_arch = "wasm32", tsify(into_wasm_abi, from_wasm_abi))]
 #[cfg_attr(target_arch = "wasm32", serde(rename_all = "camelCase"))]
-#[derive(Debug, Default)]
+#[derive(Debug)]
 pub struct JSResultSet {
     pub column_types: Vec<ColumnType>,
     pub column_names: Vec<String>,
@@ -190,6 +214,7 @@ pub struct Query {
 #[cfg_attr(not(target_arch = "wasm32"), napi_derive::napi(object))]
 #[cfg_attr(target_arch = "wasm32", derive(Serialize, Deserialize, Tsify))]
 #[cfg_attr(target_arch = "wasm32", tsify(into_wasm_abi, from_wasm_abi))]
+#[cfg_attr(target_arch = "wasm32", serde(rename_all = "camelCase"))]
 #[derive(Debug, Default)]
 pub struct TransactionOptions {
     /// Whether or not to run a phantom query (i.e., a query that only influences Prisma event logs, but not the database itself)
diff --git a/query-engine/driver-adapters/src/wasm/async_js_function.rs b/query-engine/driver-adapters/src/wasm/async_js_function.rs
index f4e3771694a2..e13f288f4a56 100644
--- a/query-engine/driver-adapters/src/wasm/async_js_function.rs
+++ b/query-engine/driver-adapters/src/wasm/async_js_function.rs
@@ -1,19 +1,21 @@
-use js_sys::{Function as JsFunction, Promise as JsPromise};
-use serde::{de::DeserializeOwned, Serialize};
+use js_sys::{Function as JsFunction, JsString, Promise as JsPromise};
+use serde::Serialize;
 use std::marker::PhantomData;
+use std::str::FromStr;
 use wasm_bindgen::convert::FromWasmAbi;
 use wasm_bindgen::describe::WasmDescribe;
 use wasm_bindgen::{JsError, JsValue};
 use wasm_bindgen_futures::JsFuture;
 
 use super::error::into_quaint_error;
+use super::from_js::FromJsValue;
 use super::result::JsResult;
 
-#[derive(Clone, Default)]
+#[derive(Clone)]
 pub(crate) struct AsyncJsFunction<ArgType, ReturnType>
 where
     ArgType: Serialize,
-    ReturnType: DeserializeOwned,
+    ReturnType: FromJsValue,
 {
     pub threadsafe_fn: JsFunction,
 
@@ -24,7 +26,7 @@ where
 impl<T, R> From<JsFunction> for AsyncJsFunction<T, R>
 where
     T: Serialize,
-    R: DeserializeOwned,
+    R: FromJsValue,
 {
     fn from(js_fn: JsFunction) -> Self {
         Self {
@@ -38,14 +40,20 @@ where
 impl<T, R> AsyncJsFunction<T, R>
 where
     T: Serialize,
-    R: DeserializeOwned,
+    R: FromJsValue,
 {
     pub async fn call(&self, arg1: T) -> quaint::Result<R> {
         let result = self.call_internal(arg1).await;
 
         match result {
-            Ok(js_result) => js_result.into(),
-            Err(err) => Err(into_quaint_error(err)),
+            Ok(js_result) => {
+                web_sys::console::log_1(&JsString::from_str("OK JS").unwrap().into());
+                js_result.into()
+            }
+            Err(err) => {
+                web_sys::console::log_1(&JsString::from_str("CALL ERR").unwrap().into());
+                Err(into_quaint_error(err))
+            }
         }
     }
 
@@ -54,7 +62,7 @@ where
         let promise = self.threadsafe_fn.call1(&JsValue::null(), &arg1)?;
         let future = JsFuture::from(JsPromise::from(promise));
         let value = future.await?;
-        let js_result: JsResult<R> = value.try_into()?;
+        let js_result = JsResult::<R>::from_js_value(value)?;
 
         Ok(js_result)
     }
@@ -63,7 +71,7 @@ where
 impl<ArgType, ReturnType> WasmDescribe for AsyncJsFunction<ArgType, ReturnType>
 where
     ArgType: Serialize,
-    ReturnType: DeserializeOwned,
+    ReturnType: FromJsValue,
 {
     fn describe() {
         JsFunction::describe();
@@ -73,7 +81,7 @@ where
 impl<ArgType, ReturnType> FromWasmAbi for AsyncJsFunction<ArgType, ReturnType>
 where
     ArgType: Serialize,
-    ReturnType: DeserializeOwned,
+    ReturnType: FromJsValue,
 {
     type Abi = <JsFunction as FromWasmAbi>::Abi;
 
diff --git a/query-engine/driver-adapters/src/wasm/error.rs b/query-engine/driver-adapters/src/wasm/error.rs
index 0aa4fe7981f2..49d7ad6cf440 100644
--- a/query-engine/driver-adapters/src/wasm/error.rs
+++ b/query-engine/driver-adapters/src/wasm/error.rs
@@ -5,6 +5,7 @@ use wasm_bindgen::JsValue;
 /// transforms a Wasm error into a Quaint error
 pub(crate) fn into_quaint_error(wasm_err: JsValue) -> QuaintError {
     let status = "WASM_ERROR".to_string();
+    web_sys::console::log_1(&wasm_err);
     let reason = Reflect::get(&wasm_err, &JsValue::from_str("stack"))
         .ok()
         .and_then(|value| value.as_string())
diff --git a/query-engine/driver-adapters/src/wasm/from_js.rs b/query-engine/driver-adapters/src/wasm/from_js.rs
new file mode 100644
index 000000000000..aaa0d91223f6
--- /dev/null
+++ b/query-engine/driver-adapters/src/wasm/from_js.rs
@@ -0,0 +1,15 @@
+use serde::de::DeserializeOwned;
+use wasm_bindgen::JsValue;
+
+pub trait FromJsValue: Sized {
+    fn from_js_value(value: JsValue) -> Result<Self, JsValue>;
+}
+
+impl<T> FromJsValue for T
+where
+    T: DeserializeOwned,
+{
+    fn from_js_value(value: JsValue) -> Result<Self, JsValue> {
+        serde_wasm_bindgen::from_value(value).map_err(|e| JsValue::from(e))
+    }
+}
diff --git a/query-engine/driver-adapters/src/wasm/mod.rs b/query-engine/driver-adapters/src/wasm/mod.rs
index 9cdc66b177e7..2afe1987e1a7 100644
--- a/query-engine/driver-adapters/src/wasm/mod.rs
+++ b/query-engine/driver-adapters/src/wasm/mod.rs
@@ -2,6 +2,7 @@
 
 mod async_js_function;
 mod error;
+mod from_js;
 mod js_object_extern;
 pub(crate) mod proxy;
 mod result;
diff --git a/query-engine/driver-adapters/src/wasm/proxy.rs b/query-engine/driver-adapters/src/wasm/proxy.rs
index bb2e9a855fe7..16a88b8d1fd3 100644
--- a/query-engine/driver-adapters/src/wasm/proxy.rs
+++ b/query-engine/driver-adapters/src/wasm/proxy.rs
@@ -15,7 +15,6 @@ type JsResult<T> = core::result::Result<T, JsValue>;
 /// querying and executing SQL (i.e. a client connector). The Proxy uses Wasm's JsFunction to
 /// invoke the code within the node runtime that implements the client connector.
 #[wasm_bindgen(getter_with_clone)]
-#[derive(Default)]
 pub(crate) struct CommonProxy {
     /// Execute a query given as SQL, interpolating the given parameters.
     query_raw: AsyncJsFunction<Query, JSResultSet>,
@@ -38,7 +37,6 @@ pub(crate) struct DriverProxy {
 /// This a JS proxy for accessing the methods, specific
 /// to JS transaction objects
 #[wasm_bindgen(getter_with_clone)]
-#[derive(Default)]
 pub(crate) struct TransactionProxy {
     /// transaction options
     options: TransactionOptions,
diff --git a/query-engine/driver-adapters/src/wasm/result.rs b/query-engine/driver-adapters/src/wasm/result.rs
index df4652307469..fc5115e4a500 100644
--- a/query-engine/driver-adapters/src/wasm/result.rs
+++ b/query-engine/driver-adapters/src/wasm/result.rs
@@ -1,8 +1,10 @@
-use js_sys::Boolean as JsBoolean;
+use std::str::FromStr;
+
+use js_sys::{Boolean as JsBoolean, JsString};
 use quaint::error::{Error as QuaintError, ErrorKind};
-use serde::de::DeserializeOwned;
 use wasm_bindgen::{JsCast, JsValue};
 
+use super::from_js::FromJsValue;
 use crate::{error::DriverAdapterError, JsObjectExtern};
 
 impl From<DriverAdapterError> for QuaintError {
@@ -26,28 +28,17 @@ impl From<DriverAdapterError> for QuaintError {
 /// Wrapper for JS-side result type
 pub(crate) enum JsResult<T>
 where
-    T: DeserializeOwned,
+    T: FromJsValue,
 {
     Ok(T),
     Err(DriverAdapterError),
 }
 
-impl<T> TryFrom<JsValue> for JsResult<T>
-where
-    T: DeserializeOwned,
-{
-    type Error = JsValue;
-
-    fn try_from(value: JsValue) -> Result<Self, Self::Error> {
-        Self::from_js_unknown(value)
-    }
-}
-
-impl<T> JsResult<T>
+impl<T> FromJsValue for JsResult<T>
 where
-    T: DeserializeOwned,
+    T: FromJsValue,
 {
-    fn from_js_unknown(unknown: JsValue) -> Result<Self, JsValue> {
+    fn from_js_value(unknown: JsValue) -> Result<Self, JsValue> {
         let object = unknown.unchecked_into::<JsObjectExtern>();
 
         let ok: JsBoolean = object.get("ok".into())?.unchecked_into();
@@ -55,7 +46,9 @@ where
 
         if ok {
             let js_value: JsValue = object.get("value".into())?;
-            let deserialized = serde_wasm_bindgen::from_value::<T>(js_value)?;
+            web_sys::console::log_1(&JsString::from_str("BEFORE DESERIALIZE").unwrap().into());
+            let deserialized = T::from_js_value(js_value)?;
+            web_sys::console::log_1(&JsString::from_str(" DESERIALIZE").unwrap().into());
             return Ok(Self::Ok(deserialized));
         }
 
@@ -67,7 +60,7 @@ where
 
 impl<T> From<JsResult<T>> for quaint::Result<T>
 where
-    T: DeserializeOwned,
+    T: FromJsValue,
 {
     fn from(value: JsResult<T>) -> Self {
         match value {
diff --git a/query-engine/driver-adapters/src/wasm/transaction.rs b/query-engine/driver-adapters/src/wasm/transaction.rs
index 43925b488101..d1b93bd4bfd0 100644
--- a/query-engine/driver-adapters/src/wasm/transaction.rs
+++ b/query-engine/driver-adapters/src/wasm/transaction.rs
@@ -1,23 +1,25 @@
 use async_trait::async_trait;
+use js_sys::{JsString, Object as JsObject};
 use metrics::decrement_gauge;
 use quaint::{
     connector::{IsolationLevel, Transaction as QuaintTransaction},
     prelude::{Query as QuaintQuery, Queryable, ResultSet},
     Value,
 };
-use serde::Deserialize;
+use std::str::FromStr;
+use wasm_bindgen::JsCast;
 
-use super::proxy::{TransactionOptions, TransactionProxy};
-use crate::{queryable::JsBaseQueryable, send_future::SendFuture};
+use super::{
+    from_js::FromJsValue,
+    proxy::{TransactionOptions, TransactionProxy},
+};
+use crate::{proxy::CommonProxy, queryable::JsBaseQueryable, send_future::SendFuture, JsObjectExtern};
 
 // Wrapper around JS transaction objects that implements Queryable
 // and quaint::Transaction. Can be used in place of quaint transaction,
 // but delegates most operations to JS
-#[derive(Deserialize, Default)]
 pub(crate) struct JsTransaction {
-    #[serde(skip)]
     tx_proxy: TransactionProxy,
-    #[serde(skip)]
     inner: JsBaseQueryable,
 }
 
@@ -36,6 +38,21 @@ impl JsTransaction {
     }
 }
 
+impl FromJsValue for JsTransaction {
+    fn from_js_value(value: wasm_bindgen::prelude::JsValue) -> Result<Self, wasm_bindgen::prelude::JsValue> {
+        let object: JsObjectExtern = value.dyn_into::<JsObject>()?.unchecked_into();
+        web_sys::console::log_1(&JsString::from_str("OBJECT").unwrap().into());
+        let common_proxy = CommonProxy::new(&object)?;
+        web_sys::console::log_1(&JsString::from_str("PROXY").unwrap().into());
+        let base = JsBaseQueryable::new(common_proxy);
+        web_sys::console::log_1(&JsString::from_str("BASE").unwrap().into());
+        let tx_proxy = TransactionProxy::new(&object)?;
+        web_sys::console::log_1(&JsString::from_str("TX_PROXY").unwrap().into());
+
+        Ok(Self::new(base, tx_proxy))
+    }
+}
+
 #[async_trait]
 impl QuaintTransaction for JsTransaction {
     async fn commit(&self) -> quaint::Result<()> {