Nginx Log RequestHeaders

Nginx Log Request Headers

    log_format request_headers_all escape=json '"$request" $status'
                                    ' [REQUEST BODY]: $request_headers_all';

        set_by_lua_block $request_headers{
            local h = ngx.req.get_headers()
            local request_headers_all = ""
            for k, v in pairs(h) do
                local rowtext = ""
                rowtext = string.format(" %s='%s' ", k, v)
                request_headers_all = request_headers_all .. rowtext

            end
            return request_headers_all