nginx里面如何解析tcp消息内容

Question

现在想在upstream里面解析tcp消息获取到业务参数来进行流量分发 ，但不知道可不可以实现

Answer 1

stream {
    server {
        listen 9000 so_keepalive=30m::10;
        content_by_lua_block{
            local sock = ngx.req.socket(true)
            local reader = sock:receiveuntil("\r\n")
            local data, err, partial = reader()
            if not data then
                ngx.print("failed to read the data stream: ", err)
            end
            ngx.print("read the data stream: ", data)
        }
    }
}