[apisix] branch master updated: perf(aws-lambda): cache the index of the array (#9944)

[monkeydluffy]

This is an automated email from the ASF dual-hosted git repository.

monkeydluffy pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/apisix.git


The following commit(s) were added to refs/heads/master by this push:
     new 65deba32f perf(aws-lambda): cache the index of the array (#9944)
65deba32f is described below

commit 65deba32fd113b18181dc32ff38a97f3bed36699
Author: Reid <xuruid...@gmail.com>
AuthorDate: Tue Aug 8 10:28:02 2023 +0800

    perf(aws-lambda): cache the index of the array (#9944)
---
 apisix/plugins/aws-lambda.lua | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/apisix/plugins/aws-lambda.lua b/apisix/plugins/aws-lambda.lua
index fe4d7f394..1b172af41 100644
--- a/apisix/plugins/aws-lambda.lua
+++ b/apisix/plugins/aws-lambda.lua
@@ -122,8 +122,10 @@ local function request_processor(conf, ctx, params)
 
     -- computing canonical query string
     local canonical_qs = {}
+    local canonical_qs_i = 0
     for k, v in pairs(params.query) do
-        canonical_qs[#canonical_qs+1] = ngx.unescape_uri(k) .. "=" .. 
ngx.unescape_uri(v)
+        canonical_qs_i = canonical_qs_i + 1
+        canonical_qs[canonical_qs_i] = ngx.unescape_uri(k) .. "=" .. 
ngx.unescape_uri(v)
     end
 
     tab_sort(canonical_qs)
@@ -132,10 +134,12 @@ local function request_processor(conf, ctx, params)
     -- computing canonical and signed headers
 
     local canonical_headers, signed_headers = {}, {}
+    local signed_headers_i = 0
     for k, v in pairs(headers) do
         k = k:lower()
         if k ~= "connection" then
-            signed_headers[#signed_headers+1] = k
+            signed_headers_i = signed_headers_i + 1
+            signed_headers[signed_headers_i] = k
             -- strip starting and trailing spaces including strip multiple 
spaces into single space
             canonical_headers[k] =  str_strip(v)
         end