stats_simple_demo.conf

lua_package_path '/path/to/lua-resty-stats/lib/?.lua;/path/to/lua-resty-stats/lib/?/init.lua;/path/to/lua-resty-stats/view/?.lua;;';
# stats config
init_worker_by_lua_block {
    require("resty.core")
    local stats = require("resty.stats")

    -- add the default stats that named "stats_host"
    stats.add_def_stats()
    -- the general stats"s config
    local update = {["$inc"]= {count=1, ["hour_cnt.$hour"]=1, ["status.$status"]=1, 
                  ["req_time.all"]="$request_time", ["req_time.$hour"]="$request_time"}}

    -- stats by uri
    stats.add_stats_config("stats_uri", 
        {selector={date="$date",key="$host:$uri"}, update=update,index_keys={"date", "key"}})

    local mongo_cfg = {host="127.0.0.1", port=27017, dbname="ngx_stats"}
    local flush_interval = 5 -- second
    local retry_interval = 0.2 -- second
    -- init stats and start flush timer.
    stats.init(mongo_cfg, flush_interval, retry_interval)
}

log_by_lua_block {
    local stats = require("resty.stats")
    stats.log("stats_uri")
    stats.log("stats_host") 
}
server {
    listen 2000;
    server_name localhost;

    location /stats {
        set $template_root /path/to/lua-resty-stats/view;
        content_by_lua_file '/path/to/lua-resty-stats/view/main.lua';
    }
}