Parse error ("Err invalid command line")

[rikhuijzer]

This problem does not seem to be caused by Redis.jl, but it might help others out who have the same problem. It took me a while to debug it, because I couldn't reproduce it locally.

When trying to store a HTTP request as a raw string into Redis, I got a parse error:

Redis.ServerException("ERR invalid command line")

I think this Redis error should be read as the command line being an invalid command. This problem can be avoided by first encoding the string as Base64.