diff --git a/benchmark/example.json b/benchmark/example.json
index cb88a7b..ce90f3a 100644
--- a/benchmark/example.json
+++ b/benchmark/example.json
@@ -34,4 +34,4 @@
     }
   },
   "expensive": 10
-}
\ No newline at end of file
+}
diff --git a/lua/docker_example/default.conf b/lua/docker_example/default.conf
index 558eb66..95870e5 100644
--- a/lua/docker_example/default.conf
+++ b/lua/docker_example/default.conf
@@ -3,30 +3,112 @@ lua_package_path '/etc/jsonpath/?.lua;;';
 access_log /var/log/nginx_access.log;
 error_log /var/log/nginx_error.log info;
 
+init_by_lua_block {
+    jp = require("jsonpath")
+    jp.init("/etc/jsonpath/libjsonpath_lib.so")
+
+    BOOK = "$..book"
+    jp.compile(BOOK)
+
+    COMMENT_COUNT = "$..commit[?(@.author.name == 'Thibault Charbonnier')]"
+    jp.compile(COMMENT_COUNT)
+}
+
 server {
-    listen       80;
-    server_name  localhost;
+    listen 80;
+    server_name localhost;
 
-    location /0 {
-        default_type text/html;
+    gzip on;
+    gzip_types text/plain application/json;
+    #gzip_comp_level 6;
+    #gzip_vary on;
 
-        content_by_lua '
-            local jsonpath = require("jsonpath")
-            jsonpath.init("/etc/jsonpath/libjsonpath_lib.so")
-            local data = ngx.location.capture("/example.json")
-            local template = jsonpath.compile("$..book[?(@.price<30 && @.category==\'fiction\')]")
-            local result = template(data.body)
-            ngx.say(result)
-        ';
+    location ~ \.json {
+        add_header 'Cache-Control' 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
+        expires off;
+
+        default_type 'text/plain';
+        root /etc/jsonpath/example;
     }
 
     location /1 {
-            default_type text/html;
+        default_type text/plain;
+        content_by_lua_file /etc/jsonpath/testa.lua;
+    }
 
-            content_by_lua_file /etc/jsonpath/testa.lua;
+    location /2 {
+        # https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Accept-Encoding
+        proxy_set_header Accept-Encoding "*";
+
+        default_type 'text/plain';
+
+        proxy_pass 'http://localhost/example.json';
+
+        header_filter_by_lua_block {
+            ngx.header.content_length = nil
         }
 
-    location /example {
-        root /etc/jsonpath/example;
+        body_filter_by_lua_block {
+            local chunk, eof = ngx.arg[1], ngx.arg[2]
+            local buf = ngx.ctx.buf
+
+            if eof then
+                if buf then
+                    local json = buf .. chunk
+                    local template = jp.compile(BOOK)
+                    local result = template(json)
+                    ngx.arg[1] = result
+                    return
+                end
+
+                return
+            end
+
+            if buf then
+                ngx.ctx.buf = buf .. chunk
+            else
+                ngx.ctx.buf = chunk
+            end
+
+            ngx.arg[1] = nil
+        }
+    }
+
+    location /3 {
+        # https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Accept-Encoding
+        proxy_set_header Accept-Encoding "*";
+
+        default_type 'text/plain';
+
+        proxy_pass 'https://api.github.com/repos/openresty/lua-nginx-module/commits';
+
+        header_filter_by_lua_block {
+            ngx.header.content_length = nil
+        }
+
+        body_filter_by_lua_block {
+            local chunk, eof = ngx.arg[1], ngx.arg[2]
+            local buf = ngx.ctx.buf
+
+            if eof then
+                if buf then
+                    local json = buf .. chunk
+                    local template = jp.compile(COMMENT_COUNT)
+                    local result = template(json)
+                    ngx.arg[1] = result
+                    return
+                end
+
+                return
+            end
+
+            if buf then
+                ngx.ctx.buf = buf .. chunk
+            else
+                ngx.ctx.buf = chunk
+            end
+
+            ngx.arg[1] = nil
+        }
     }
 }
\ No newline at end of file
diff --git a/lua/docker_example/run.sh b/lua/docker_example/run.sh
index 8b4d680..8e6274b 100755
--- a/lua/docker_example/run.sh
+++ b/lua/docker_example/run.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 
-# cd lua/docker_example && ./run.sh
+# cd lua && cargo build --release && cd docker_example && ./run.sh
 
 set -v
 
-docker kill jsonpath
+[ "$(docker ps -a | grep jsonpath)" ] && docker kill jsonpath
 
 docker run -d --rm --name jsonpath \
   -v "${PWD}/../../benchmark/example.json":/etc/jsonpath/example/example.json:ro \
@@ -16,35 +16,5 @@ docker run -d --rm --name jsonpath \
   -p 8080:80 \
   openresty/openresty:bionic
 
-paths=(
-    "$.store.book[*].author"
-    "$..author"
-    "$.store.*"
-    "$.store..price"
-    "$..book[2]"
-    "$..book[-2]"
-    "$..book[0,1]"
-    "$..book[:2]"
-    "$..book[1:2]"
-    "$..book[-2:]"
-    "$..book[2:]"
-    "$..book[?(@.isbn)]"
-    "$.store.book[?(@.price == 10)]"
-    "$..*"
-    "$..book[ ?( (@.price < 13 || $.store.bicycle.price < @.price) && @.price <=10 ) ]"
-    "$.store.book[?( (@.price < 10 || @.price > 10) && @.price > 10 )]"
-)
-
-encoded_paths=()
-
-for i in "${!paths[@]}"
-do
-  encoded_paths+=("$(node --eval "console.log(encodeURIComponent('${paths[$i]}'))")")
-  curl http://localhost:8080/1?path="${encoded_paths[$i]}"
-done
-
-for i in "${!encoded_paths[@]}"
-do
-  ab -n 1000 -c 10 http://localhost:8080/1?path="${encoded_paths[$i]}" > ab_results/"${paths[$i]}".txt
-done
-
+sleep 1
+curl http://localhost:8080/3
diff --git a/lua/jsonpath.lua b/lua/jsonpath.lua
index 4dba7ad..0c04b23 100644
--- a/lua/jsonpath.lua
+++ b/lua/jsonpath.lua
@@ -23,7 +23,9 @@ if existsVaiable('ngx') then
     _ngx = ngx
 else
     _ngx = {}
-    _ngx.log = function() end
+    _ngx.log = function(level, msg)
+        print('['..level..'] ' .. msg)
+    end
 end
 
 function module.compile(path)