diff --git a/src/batch.cc b/src/batch.cc
index 4fdf194f..815df3f1 100644
--- a/src/batch.cc
+++ b/src/batch.cc
@@ -32,14 +32,14 @@ leveldb::Status Batch::Write () {
 }
 
 void Batch::Init (napi_env env) {
-  napi_method_descriptor methods[] = {
-    { Batch::Put, "put" },
-    { Batch::Del, "del" },
-    { Batch::Clear, "clear" },
-    { Batch::Write, "write" },
+  napi_property_descriptor methods[] = {
+    { "put", Batch::Put },
+    { "del", Batch::Del },
+    { "clear", Batch::Clear },
+    { "write", Batch::Write },
   };
 
-  napi_value ctor = napi_create_constructor_for_wrap_with_methods(env, Batch::New, "Batch", 4, methods);
+  napi_value ctor = napi_create_constructor(env, "Batch", Batch::New, nullptr, 4, methods);
 
   batch_constructor = napi_create_persistent(env, ctor);
 }
diff --git a/src/database.cc b/src/database.cc
index e397a24e..c67349fe 100644
--- a/src/database.cc
+++ b/src/database.cc
@@ -127,7 +127,7 @@ void Database::CloseDatabase () {
 
 /* V8 exposed functions *****************************/
 
-void LevelDOWN (napi_env env, napi_func_cb_info info) {
+void LevelDOWN (napi_env env, napi_callback_info info) {
   napi_value args[1];
   napi_get_cb_args(env, info, args, 1);
 
@@ -137,19 +137,19 @@ void LevelDOWN (napi_env env, napi_func_cb_info info) {
 }
 
 void Database::Init (napi_env env) {
-  napi_method_descriptor methods [] = {
-    { Database::Open, "open" },
-    { Database::Close, "close" },
-    { Database::Put, "put" },
-    { Database::Get, "get" },
-    { Database::Delete, "del" },
-    { Database::Batch, "batch" },
-    { Database::ApproximateSize, "approximateSize" },
-    { Database::GetProperty, "getProperty" },
-    { Database::Iterator, "iterator" },
+  napi_property_descriptor methods [] = {
+    { "open", Database::Open },
+    { "close", Database::Close },
+    { "put", Database::Put },
+    { "get", Database::Get },
+    { "del", Database::Delete },
+    { "batch", Database::Batch },
+    { "approximateSize", Database::ApproximateSize },
+    { "getProperty", Database::GetProperty },
+    { "iterator", Database::Iterator },
   };
 
-  napi_value ctor = napi_create_constructor_for_wrap_with_methods(env, Database::New, "Database", 9, methods);
+  napi_value ctor = napi_create_constructor(env, "Database", Database::New, nullptr, 9, methods);
 
   database_constructor = napi_create_persistent(env, ctor);
 }
@@ -270,7 +270,7 @@ NAPI_METHOD(Database::Close) {
             napi_propertyname pnEnd = napi_property_name(env, "end");
             napi_value end = napi_get_property(env, iteratorHandle, pnEnd);
             napi_value argv [] = {
-                napi_create_function(env, EmptyMethod) // empty callback
+                napi_create_function(env, EmptyMethod, nullptr) // empty callback
             };
             napi_make_callback(
               env
@@ -492,40 +492,20 @@ NAPI_METHOD(Database::Iterator) {
   uint32_t id = database->currentIteratorId++;
 
   napi_value iteratorHandle;
-  struct try_catch_data {
-    napi_value& iteratorHandle;
-    napi_value& _this;
-    uint32_t& id;
-    napi_value& optionsObj;
-  } data = {
-    iteratorHandle,
-    _this,
-    id,
-    optionsObj
-  };
 
-  bool did_catch = napi_try_catch(
-      env
-    , [](napi_env env, void* data) {
-        try_catch_data* d = static_cast<try_catch_data*>(data);
-        d->iteratorHandle = Iterator::NewInstance(
-            env
-          , d->_this
-          , napi_create_number(env, d->id)
-          , d->optionsObj
-        );
-      }
-    , [](napi_env env, void* data) {
-        // NB: node::FatalException can segfault here if there is no room on stack.
-        napi_throw_error(env, "Fatal Error in Database::Iterator!");
-      }
-    , &data
+  iteratorHandle = Iterator::NewInstance(
+    env
+    , _this
+    , napi_create_number(env, id)
+    , optionsObj
   );
 
-  if (did_catch) {
-      return;
+  if (napi_is_exception_pending(env)) {
+    // NB: node::FatalException can segfault here if there is no room on stack.
+    napi_throw_error(env, "Fatal Error in Database::Iterator!");
   }
 
+
   leveldown::Iterator *iterator =
       static_cast<leveldown::Iterator*>(napi_unwrap(env, iteratorHandle));
 
diff --git a/src/database.h b/src/database.h
index 8780c475..efff4425 100644
--- a/src/database.h
+++ b/src/database.h
@@ -20,7 +20,7 @@
 
 namespace leveldown {
 
-void LevelDOWN (napi_env env, napi_func_cb_info info);
+void LevelDOWN (napi_env env, napi_callback_info info);
 
 class Database {
 public:
diff --git a/src/iterator.cc b/src/iterator.cc
index e2266caa..b5cebe9b 100644
--- a/src/iterator.cc
+++ b/src/iterator.cc
@@ -316,13 +316,13 @@ NAPI_METHOD(Iterator::End) {
 }
 
 void Iterator::Init (napi_env env) {
-  napi_method_descriptor methods [] = {
-    { Iterator::Seek, "seek" },
-    { Iterator::Next, "next" },
-    { Iterator::End, "end" },
+  napi_property_descriptor methods [] = {
+    { "seek", Iterator::Seek },
+    { "next", Iterator::Next },
+    { "end", Iterator::End },
   };
 
-  napi_value ctor = napi_create_constructor_for_wrap_with_methods(env, Iterator::New, "Iterator", 3, methods);
+  napi_value ctor = napi_create_constructor(env, "Iterator", Iterator::New, nullptr, 3, methods);
 
   iterator_constructor = napi_create_persistent(env, ctor);
 }
diff --git a/src/leveldown.cc b/src/leveldown.cc
index 54d12385..f3a85083 100644
--- a/src/leveldown.cc
+++ b/src/leveldown.cc
@@ -14,7 +14,7 @@
 
 namespace leveldown {
 
-void DestroyDB (napi_env env, napi_func_cb_info info) {
+void DestroyDB (napi_env env, napi_callback_info info) {
   napi_value args[2];
   napi_get_cb_args(env, info, args, 2);
 
@@ -32,7 +32,7 @@ void DestroyDB (napi_env env, napi_func_cb_info info) {
   napi_set_return_value(env, info, napi_get_undefined_(env));
 }
 
-void RepairDB (napi_env env, napi_func_cb_info info) {
+void RepairDB (napi_env env, napi_callback_info info) {
   napi_value args[2];
   napi_get_cb_args(env, info, args, 2);
 
@@ -59,10 +59,10 @@ void Init(napi_env env, napi_value target, napi_value module) {
   napi_propertyname nameRepair = napi_property_name(env, "repair");
   napi_propertyname nameLeveldown = napi_property_name(env, "leveldown");
 
-  napi_value leveldown = napi_create_function(env, LevelDOWN);
+  napi_value leveldown = napi_create_function(env, LevelDOWN, nullptr);
 
-  napi_set_property(env, leveldown, nameDestroy, napi_create_function(env, DestroyDB));
-  napi_set_property(env, leveldown, nameRepair, napi_create_function(env, RepairDB));
+  napi_set_property(env, leveldown, nameDestroy, napi_create_function(env, DestroyDB, nullptr));
+  napi_set_property(env, leveldown, nameRepair, napi_create_function(env, RepairDB, nullptr));
 
   napi_set_property(env, target, nameLeveldown, leveldown);
 }