From e2f33c5e076b884a6fcbad4f84db343701419b9c Mon Sep 17 00:00:00 2001
From: Kenneth <kennethw@bbd.co.za>
Date: Wed, 23 Oct 2024 11:08:54 +0200
Subject: [PATCH] fix: body-transformer - failed to transform response body -
 XML to JSON

---
 apisix/plugins/body-transformer.lua | 33 ++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/apisix/plugins/body-transformer.lua b/apisix/plugins/body-transformer.lua
index 977ebce676f0..881950a0d36d 100644
--- a/apisix/plugins/body-transformer.lua
+++ b/apisix/plugins/body-transformer.lua
@@ -78,23 +78,32 @@ end
 
 
 local function remove_namespace(tbl)
-    for k, v in pairs(tbl) do
-        if type(v) == "table" and next(v) == nil then
+
+    local function update_namespace(ns)
+        local v = ns
+        if type(ns) == "table" and next(ns) == nil then
             v = ""
-            tbl[k] = v
+        elseif type(ns) == "table" then
+            v = remove_namespace(ns)
         end
-        if type(k) == "string" then
-            local newk = k:match(".*:(.*)")
-            if newk then
-                tbl[newk] = v
-                tbl[k] = nil
-            end
-            if type(v) == "table" then
-                remove_namespace(v)
+        return v
+    end
+  
+    local function remove_namespace_wrapper(old_table, new_table)
+        for k, v in pairs(old_table) do
+            if type(k) == "string" then
+                local newk = k:match(".*:(.*)")
+                if newk then
+                    new_table[newk] = update_namespace(v)
+                else
+                    new_table[k] = update_namespace(v)
+                end
             end
         end
+        return new_table
     end
-    return tbl
+    
+    return remove_namespace_wrapper(tbl, {})
 end