sniper-xx commented on issue #4193:
URL: https://github.com/apache/apisix/issues/4193#issuecomment-834050995
```lua
local function wrap_result(conf, ctx)
local result = {
msg="ok",
code= resp_code,
elapsed = ngx.time()-elapsed,
data = "__placeholder__",
success=true
}
--如果完成后台数据读取,重新进行Json结果封装
result['data'] = cjson_decode(data_buffer)
ngx.arg[1] = cjson_encode(result)
--local wrap_string = cjson_encode(result)
--local ret_content =
ngx.re.sub(wrap_string,'"__placeholder__"',data_buffer,'jo')
--ngx.arg[1] = ret_content
ngx.arg[2] = true
end
```
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