diff --git a/lua/apimeta.lua b/lua/apimeta.lua
index 211fe3e7..7024da57 100644
--- a/lua/apimeta.lua
+++ b/lua/apimeta.lua
@@ -1,25 +1,46 @@
 -- Copyright (C) Yuansheng Wang
 
+local log = require("apimeta.comm.log")
+local resp = require("apimeta.comm.resp")
+local route_handler = require("apimeta.route.handler")
+local ngx_req = ngx.req
+
 local _M = {}
 
 function _M.init()
-    
+
 end
 
 function _M.init_worker()
-    require("apimeta.router.load").init_worker()
+    require("apimeta.route.load").init_worker()
 end
 
 function _M.access()
-    ngx.say("hello")
+    local ngx_ctx = ngx.ctx
+    local api_ctx = ngx_ctx.api_ctx
+
+    if api_ctx == nil then
+        api_ctx = {}
+        ngx_ctx.api_ctx = api_ctx
+    end
+
+    api_ctx.method = api_ctx.method or ngx_req.get_method()
+    api_ctx.uri = api_ctx.uri or ngx.var.uri
+
+    local router = route_handler.get_router()
+    local ok = router:dispatch(api_ctx.method, api_ctx.uri, api_ctx)
+    if not ok then
+        log.warn("not find any matched route")
+        resp(403)
+    end
 end
 
 function _M.header_filter()
-    
+
 end
 
 function _M.log()
-    
+
 end
 
 return _M
diff --git a/lua/apimeta/comm/resp.lua b/lua/apimeta/comm/resp.lua
new file mode 100644
index 00000000..15597496
--- /dev/null
+++ b/lua/apimeta/comm/resp.lua
@@ -0,0 +1,16 @@
+-- Copyright (C) Yuansheng Wang
+
+local ngx = ngx
+local ngx_say = ngx.say
+local ngx_exit = ngx.exit
+
+return function (code, body)
+    if not body then
+        ngx_exit(code)
+        return
+    end
+
+    ngx.status = code
+    ngx_say(body)
+    ngx_exit(code)
+end
diff --git a/lua/apimeta/route/handler.lua b/lua/apimeta/route/handler.lua
new file mode 100644
index 00000000..759799f4
--- /dev/null
+++ b/lua/apimeta/route/handler.lua
@@ -0,0 +1,50 @@
+-- Copyright (C) Yuansheng Wang
+
+local r3router = require("resty.r3")
+local log = require("apimeta.comm.log")
+local insert_tab = table.insert
+local new_tab = require("table.new")
+
+local router
+
+local _M = {}
+
+
+function _M.get_router()
+    if router == nil then
+        log.warn("generate a empty router instance")
+        return _M.load({ {methods = {"GET"}, uri = "/hello", router_id = "xx"} })
+    end
+
+    return router
+end
+
+
+local function run_route(params, route, ...)
+    ngx.say("run route")
+end
+
+
+function _M.load(routes)
+    if router then
+        router:tree_free()
+        router = nil
+    end
+
+    local items = new_tab(#routes, 0)
+    for i, route in ipairs(routes) do
+        items[i] = {
+            route.methods,
+            route.uri,
+            function (params, ...)
+                return run_route(params, router, ...)
+            end
+        }
+    end
+
+    router = r3router.new(items)
+    return router
+end
+
+
+return _M
diff --git a/lua/apimeta/router/load.lua b/lua/apimeta/route/load.lua
similarity index 100%
rename from lua/apimeta/router/load.lua
rename to lua/apimeta/route/load.lua