diff --git a/lib/lor/lib/request.lua b/lib/lor/lib/request.lua
index a561cc3..782c756 100755
--- a/lib/lor/lib/request.lua
+++ b/lib/lor/lib/request.lua
@@ -22,6 +22,10 @@ function Request:new()
                     body[k] = v
                 end
             end
+        elseif sfind(header, "application/ljpack", 1, true) then
+            ngx.req.read_body()
+            local sb_str = ngx.req.get_body_data()
+            body = utils.ljpack_decode(sb_str)
         elseif sfind(header, "application/json", 1, true) then
             ngx.req.read_body()
             local json_str = ngx.req.get_body_data()
diff --git a/lib/lor/lib/response.lua b/lib/lor/lib/response.lua
index c69fac7..dd3f5b5 100755
--- a/lib/lor/lib/response.lua
+++ b/lib/lor/lib/response.lua
@@ -47,6 +47,19 @@ function Response:json(data, empty_table_as_object)
     self:_send(utils.json_encode(data, empty_table_as_object))
 end
 
+
+function Response:json_stably(data)
+    self:set_header('Content-Type', 'application/json; charset=utf-8')
+    self:_send(utils.json_stably_encode(data))
+end
+
+
+
+function Response:ljpack(data)
+    self:set_header('Content-Type', 'application/ljpack')
+    self:__send(utils.ljpack_encode(data))
+end
+
 function Response:redirect(url, code, query)
     if url and not code and not query then -- only one param
         ngx.redirect(url)
@@ -111,6 +124,11 @@ function Response:_send(content)
     ngx.say(content)
 end
 
+function Response:__send(content)
+    ngx.status =  self.http_status or 200
+    ngx.print(content)
+end
+
 function Response:get_body()
     return self.body
 end
diff --git a/lib/lor/lib/utils/utils.lua b/lib/lor/lib/utils/utils.lua
index 52ca1d5..d0d3f23 100755
--- a/lib/lor/lib/utils/utils.lua
+++ b/lib/lor/lib/utils/utils.lua
@@ -8,6 +8,8 @@ local sgsub = string.gsub
 local smatch = string.match
 local table_insert = table.insert
 local json = require("cjson")
+local dkjson = require("dkjson")
+local st   = require("string.buffer")
 
 local _M = {}
 
@@ -69,7 +71,7 @@ function _M.json_encode(data, empty_table_as_object)
     local json_value
     if json.encode_empty_table_as_object then
         -- empty table encoded as array default
-        json.encode_empty_table_as_object(empty_table_as_object or false) 
+        json.encode_empty_table_as_object(empty_table_as_object or false)
     end
     if require("ffi").os ~= "Windows" then
         json.encode_sparse_array(true)
@@ -78,6 +80,12 @@ function _M.json_encode(data, empty_table_as_object)
     return json_value
 end
 
+function _M.json_stably_encode(data)
+    local json_value
+    pcall(function(d) json_value = dkjson.encode(d) end, data)
+    return json_value
+end
+
 function _M.json_decode(str)
     local ok, data = pcall(json.decode, str)
     if ok then
@@ -85,6 +93,19 @@ function _M.json_decode(str)
     end
 end
 
+function _M.ljpack_encode(data)
+    local st_value
+    pcall(function(d) st_value = st.encode(d) end, data)
+    return st_value
+end
+
+function _M.ljpack_decode(str)
+    local ok, data = pcall(st.decode, str)
+    if ok then
+        return data
+    end
+end
+
 function _M.start_with(str, substr)
     if str == nil or substr == nil then
         return false