Install Redis using homebrew.
brew install redis
After installing it, you will see some warning signs, just ignore those and move on with the rest of the tutorial.
To initiate Redis when your computer starts, run the following command.
ln -sfv /usr/local/opt/redis/*.plist ~/Library/LaunchAgents
Start Redis server via “launchctl”.
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist
Start Redis server ...