I was trying to read some messages from a tcp connection with a redis client (a terminal just running redis-cli). However, the Read command for the net package requires me to give in a slice as an argument. Whenever I give a slice with no length, the connection crashes and the go program halts. I am not sure what length my byte messages need going to be before hand. So unless I specify some slice that is ridiculously large, this connection will always close, though this seems wasteful. I was wondering, is it possible to keep a connection without having to know the length of the message before hand? I would love a solution to my specific problem, but I feel that this question is more general. Why do I need to know the length before hand? Can't the library just give me a slice of the correct size?
Or what other solution do people suggest?