Using Homebrew will save you lot of times in setting up and configuring the development environment on macOS.
If you don’t have it in your Mac, try installing using the guideline here.

Optional:
If you don’t update your packages for a long time. Update them using:

brew update
brew upgrade

Those 2 commands may take time. Please take your coffee (or run them later when you have time).

Install Redis

brew install redis

==> Downloading https://homebrew.bintray.com/bottles/redis-5.0.3.mojave.bottle.tar.gz
######################################################################## 100.0%
==> Pouring redis-5.0.3.mojave.bottle.tar.gz
==> Caveats
To have launchd start redis now and restart at login:
  brew services start redis
Or, if you don't want/need a background service you can just run:
  redis-server /usr/local/etc/redis.conf
==> Summary
🍺  /usr/local/Cellar/redis/5.0.3: 13 files, 3.1MB

Start Redis

Run Redis as a background service

brew services start redis

And stop it

brew services stop redis

If you don’t want/need a background service you can just run:

redis-server

You can configure for Redis by editing the configuration file in

vim /usr/local/etc/redis.conf

And start Redis with the configuration file as:

redis-server /usr/local/etc/redis.conf

Interact with Redis

When Redis is running, you can interact with it via redis-cli.
Test if Redis is running

redis-cli ping

It will reply PONG.

All commands to use with redis-cli can be found here.

Command I usually use when debugging: Clear all data

redis-cli flushall

Uninstall Redis

Remember to remove the plist file also.

brew uninstall redis
rm ~/Library/LaunchAgents/homebrew.mxcl.redis.plist