lua-resty-shdict-simple - Simple application-oriented interface to OpenResty's shared dictionary API
local shdict_simple = require "resty.shdict.simple"
local function dlog(ctx, ...)
ngx.log(ngx.DEBUG, "my app: ", ...)
end
local function error_log(ctx, ...)
ngx.log(ngx.ERR, "my app: ", ...)
end
local pos_ttl = 20000 -- in ms
local neg_ttl = 10000 -- in ms
local my_shdict_set, my_shdict_get
= shdict_simple.gen_shdict_methods{
dict_name = "my_lua_shared_dict_name",
debug_logger = dlog,
error_logger = error_log,
positive_ttl = pos_ttl,
negative_ttl = neg_ttl,
}
-- on hot code paths:
local ctx = ngx.ctx
local key = "name"
local value = "John Green"
-- when value == "", negative ttl is used; otherwise positive ttl is used.
my_shdict_set(ctx, key, value)
-- it is also possible to override the default ttl for a single method call:
my_shdict_set(ctx, key, value, my_temp_ttl)
local res, stale = my_shdict_get(ctx, key)
if not res then
if stale then
-- use the stale data in the cache...
end
end- Add a test suite under
t/.
Yichun "agentzh" Zhang (章亦春) [email protected], CloudFlare Inc.
This module is licensed under the BSD license.
Copyright (C) 2016, by CloudFlare Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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