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feat(vars): index upstream timing variables for FFI access #105

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Merged
merged 1 commit into from
Mar 15, 2025
Merged

feat(vars): index upstream timing variables for FFI access #105

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7 changes: 7 additions & 0 deletions src/ngx_http_lua_kong_var_index.c
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,13 @@ static ngx_str_t default_vars[] = {
ngx_string("upstream_http_upgrade"),
ngx_string("upstream_status"),

/* detailed upstream timing vars */
ngx_string("upstream_start_timestamp_us"),
ngx_string("upstream_connect_timestamp_us"),
ngx_string("upstream_request_timestamp_us"),
ngx_string("upstream_header_timestamp_us"),
ngx_string("upstream_response_timestamp_us"),

/* lua-kong-module vars */
ngx_string("kong_request_id"),

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35 changes: 34 additions & 1 deletion t/006-default_indexed-var.t
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Expand Up @@ -9,7 +9,7 @@ use Test::Nginx::Socket::Lua;

repeat_each(2);

plan tests => repeat_each() * (blocks() * 8) + 10;
plan tests => repeat_each() * (blocks() * 8) + 14;

#no_diff();
#no_long_string();
Expand Down Expand Up @@ -444,3 +444,36 @@ get variable value 'false' by index
[error]
[crit]
[alert]

=== TEST 14: upstream timing variables
--- http_config
lua_package_path "../lua-resty-core/lib/?.lua;lualib/?.lua;;";
lua_kong_load_var_index default;
init_by_lua_block {
require("resty.kong.var").patch_metatable()
}

--- config
location = /test {
content_by_lua_block {
ngx.say(ngx.var.upstream_start_timestamp_us, " ",
ngx.var.upstream_connect_timestamp_us, " ",
ngx.var.upstream_request_timestamp_us, " ",
ngx.var.upstream_header_timestamp_us, " ",
ngx.var.upstream_response_timestamp_us)
}
}
--- request
GET /test
--- response_body
nil nil nil nil nil
--- error_log
variable value is not found by index
variable value is not found by index
variable value is not found by index
variable value is not found by index
variable value is not found by index
--- no_error_log
[error]
[crit]
[alert]
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