saiyoofan commented on issue #6643:
URL: https://github.com/apache/apisix/issues/6643#issuecomment-1072231212
```
elseif core_str.has_prefix(key, "post_arg_") then
-- only match default post form
if request.header(nil, "Content-Type") ~= nil then
local con_t = sub_str(request.header(nil,
"Content-Type"),1,33)
if con_t == "application/x-www-form-urlencoded" then
local arg_key = sub_str(key, 10)
local args = request.get_post_args()[arg_key]
if args then
if type(args) == "table" then
val = args[1]
else
val = args
end
end
end
end
elseif core_str.has_prefix(key, "body_arg_") then
-- only match default body json
if request.header(nil, "Content-Type") ~= nil then
local con_t = sub_str(request.header(nil,
"Content-Type"),1,16)
if con_t == "application/json" then
local body, err = request.get_body()
if not body then
return nil, "failed to read body data, " .. (err or
"request body has zero size")
end
local arg_key = sub_str(key, 10)
local res
res, err = json.decode(body)
if not res then
return nil, "failed to read body data, " .. err
end
if not res[arg_key] then
return nil, "failed to read body data, json body[" ..
arg_key .. "] is nil"
end
val = res[arg_key]
end
end
```
The above code seems to work fine.
But I'm not sure if there will be other problems.
If you have better suggestions, I hope to help correct me, thank you
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