local resty_ks3 = require "resty.ks3.ks3"

local accessKey	  =   "your accessKey";
local secretKey	  =   "your secretKey";
local bucket      =   "your bucket",

local opts = {
    endpoint = 'your ks3 endpoint',
    timeout  = 'request timeout',
}

local key_name = 'your key name'

local client, err_code, err_msg = resty_ks3.new(bucket, ak, sk, opts)
if err_code == nil then
    local _
     _, err_code, err_msg = client:delete_object(key_name)
end

if err_code ~= nil then
    ngx.log(ngx.ERR, to_str('delete ks3 file error. key_name:',
        key_name, ', err_code:', err_code, ', err_msg:', err_msg))

    return nil, 'DeleteKS3Error', err_msg
end