sessions

README

Expiring Sessions

Web sessions are ephemeral. We can leverage the EXPIRE command in Redis to mark a key to be automatically removed from Redis when it expires. In this example, we explore how we can implement expiring web sessions in redis:

• Use the Radix driver.
• Use the Go-Redis driver.
• Use GOB serialization to save complex types into Redis.

Setup

1. Start redis via docker compose:

   $ docker-compose up
   

2. In the another shell, you can connect to Redis via the CLI tool:

   $ docker-compose exec redis redis-cli
   127.0.0.1:6379> KEYS sessions
   

3. Run Go program.

   $ go run ./main.go
   

4. Shut down and remove the container when you are done.

   $ # This should remove both redis-server and redis-cli
   $ docker-compose down
   

5. Alternatively, you can run everything with just 2 commands.

   $ make run
   $ make teardown    # Run this to remove the container
   

Reference and Credits

• Tutorial: Design and implementation of a simple Twitter clone using PHP and the Redis key-value store
• GoDoc: mediocreogopher/radix
• Go-Redis homepage