diff --git a/websocket/api/api.script_api b/websocket/api/api.script_api
index 39f2f3a..ac51a09 100644
--- a/websocket/api/api.script_api
+++ b/websocket/api/api.script_api
@@ -113,6 +113,17 @@
       - name: message
         type: string
         desc: the message to send
+      - name: options
+        type: table
+        desc: options for this particular message. May be `nil`
+        members:
+        - name: type
+          type: number
+          desc: The data type of the message
+
+             - `websocket.DATA_TYPE_BINARY` (default)
+
+             - `websocket.DATA_TYPE_TEXT`
 
     examples:
       - desc: |-
diff --git a/websocket/src/script_util.cpp b/websocket/src/script_util.cpp
index 2568f62..66e13c1 100644
--- a/websocket/src/script_util.cpp
+++ b/websocket/src/script_util.cpp
@@ -1,8 +1,8 @@
 #include "script_util.h"
 
-namespace dmWebsocket {
+namespace dmScript {
 
-bool luaL_checkbool(lua_State *L, int numArg)
+bool CheckBool(lua_State *L, int numArg)
 {
     bool b = false;
     if (lua_isboolean(L, numArg))
@@ -16,17 +16,17 @@ bool luaL_checkbool(lua_State *L, int numArg)
     return b;
 }
 
-bool luaL_checkboold(lua_State *L, int numArg, int def)
+bool CheckBoold(lua_State *L, int numArg, int def)
 {
     int type = lua_type(L, numArg);
     if (type != LUA_TNONE && type != LUA_TNIL)
     {
-        return luaL_checkbool(L, numArg);
+        return CheckBool(L, numArg);
     }
     return def;
 }
 
-lua_Number luaL_checknumberd(lua_State *L, int numArg, lua_Number def)
+lua_Number CheckNumberd(lua_State *L, int numArg, lua_Number def)
 {
     int type = lua_type(L, numArg);
     if (type != LUA_TNONE && type != LUA_TNIL)
@@ -36,7 +36,7 @@ lua_Number luaL_checknumberd(lua_State *L, int numArg, lua_Number def)
     return def;
 }
 
-char* luaL_checkstringd(lua_State *L, int numArg, const char* def)
+char* CheckStringd(lua_State *L, int numArg, const char* def)
 {
     int type = lua_type(L, numArg);
     if (type != LUA_TNONE && type != LUA_TNIL)
@@ -46,7 +46,7 @@ char* luaL_checkstringd(lua_State *L, int numArg, const char* def)
     return (char*)def;
 }
 
-lua_Number luaL_checktable_number(lua_State *L, int numArg, const char* field, lua_Number def)
+lua_Number CheckTableNumber(lua_State *L, int numArg, const char* field, lua_Number def)
 {
     lua_Number result = def;
     if(lua_istable(L, numArg))
@@ -61,7 +61,7 @@ lua_Number luaL_checktable_number(lua_State *L, int numArg, const char* field, l
     return result;
 }
 
-char* luaL_checktable_string(lua_State *L, int numArg, const char* field, char* def)
+char* CheckTableString(lua_State *L, int numArg, const char* field, char* def)
 {
     char* result = def;
     if(lua_istable(L, numArg))
diff --git a/websocket/src/script_util.h b/websocket/src/script_util.h
index 5d825a0..e26e423 100644
--- a/websocket/src/script_util.h
+++ b/websocket/src/script_util.h
@@ -2,11 +2,11 @@
 
 #include <dmsdk/sdk.h>
 
-namespace dmWebsocket {
-    bool        luaL_checkbool(lua_State *L, int numArg);
-    bool        luaL_checkboold(lua_State *L, int numArg, int def);
-    lua_Number  luaL_checknumberd(lua_State *L, int numArg, lua_Number def);
-    char*       luaL_checkstringd(lua_State *L, int numArg, const char* def);
-    lua_Number  luaL_checktable_number(lua_State *L, int numArg, const char* field, lua_Number def);
-    char*       luaL_checktable_string(lua_State *L, int numArg, const char* field, char* def);
+namespace dmScript {
+    bool        CheckBool(lua_State *L, int numArg);
+    bool        CheckBoold(lua_State *L, int numArg, int def);
+    lua_Number  CheckNumberd(lua_State *L, int numArg, lua_Number def);
+    char*       CheckStringd(lua_State *L, int numArg, const char* def);
+    lua_Number  CheckTableNumber(lua_State *L, int numArg, const char* field, lua_Number def);
+    char*       CheckTableString(lua_State *L, int numArg, const char* field, char* def);
 } // namespace
\ No newline at end of file
diff --git a/websocket/src/websocket.cpp b/websocket/src/websocket.cpp
index 521c741..a2dd60a 100644
--- a/websocket/src/websocket.cpp
+++ b/websocket/src/websocket.cpp
@@ -325,7 +325,7 @@ static int LuaSend(lua_State* L)
     const char* string = luaL_checklstring(L, 2, &string_length);
 
 #if defined(HAVE_WSLAY)
-    int write_mode = WSLAY_BINARY_FRAME; // or WSLAY_TEXT_FRAME
+    int write_mode = dmScript::CheckTableNumber(L, 3, "type", WSLAY_BINARY_FRAME);
 
     struct wslay_event_msg msg;
     msg.opcode = write_mode;
@@ -395,13 +395,23 @@ static void LuaInit(lua_State* L)
     luaL_register(L, MODULE_NAME, Websocket_module_methods);
 
 #define SETCONSTANT(_X) \
-            lua_pushnumber(L, (lua_Number) _X); \
-            lua_setfield(L, -2, #_X);
+        lua_pushnumber(L, (lua_Number) _X); \
+        lua_setfield(L, -2, #_X);
 
-        SETCONSTANT(EVENT_CONNECTED);
-        SETCONSTANT(EVENT_DISCONNECTED);
-        SETCONSTANT(EVENT_MESSAGE);
-        SETCONSTANT(EVENT_ERROR);
+    SETCONSTANT(EVENT_CONNECTED);
+    SETCONSTANT(EVENT_DISCONNECTED);
+    SETCONSTANT(EVENT_MESSAGE);
+    SETCONSTANT(EVENT_ERROR);
+
+#if defined(HAVE_WSLAY)
+    lua_pushnumber(L, (lua_Number) WSLAY_BINARY_FRAME);
+    lua_setfield(L, -2, "DATA_TYPE_BINARY");
+    lua_pushnumber(L, (lua_Number) WSLAY_TEXT_FRAME);
+    lua_setfield(L, -2, "DATA_TYPE_TEXT");
+#else
+    SETCONSTANT(DATA_TYPE_BINARY);
+    SETCONSTANT(DATA_TYPE_TEXT);
+#endif
 
 #undef SETCONSTANT
 
diff --git a/websocket/src/websocket.h b/websocket/src/websocket.h
index a537163..020a8f9 100644
--- a/websocket/src/websocket.h
+++ b/websocket/src/websocket.h
@@ -66,6 +66,12 @@ namespace dmWebsocket
         MESSAGE_TYPE_CLOSE  = 1,
     };
 
+    enum DataType
+    {
+        DATA_TYPE_BINARY = 0,
+        DATA_TYPE_TEXT   = 1,
+    };
+
     struct Message
     {
         uint32_t m_Length:30;