spring-cache-memcached-example

Example project for using memcached as spring cache storage

Requirement

• docker
• make

Instructions

Build-time

• Compile with gradle: make docker_gradle_build
• Build docker image: make docker_build_web

Runtime

• Launch service: make docker_up
• Terminate service: make docker_stop
• Tail logs: make docker_logs (use Ctrl + C to stop tailing)
• Access service (using ping API as an example): curl -s -X 'GET' localhost:8080/app/ping

Example

Using spring cache

• Build and run application with commands above
• Run curl -s -X 'GET' localhost:8080/app/data to fetch all data response(empty) and create a cache entry
• Run the same query again (before the expiration window) to verify response is loaded from cache (see logs from make docker_logs)
• Run curl -s -X 'POST' localhost:8080/app/data to create a new Data object
• Run curl -s -X 'PUT' localhost:8080/app/data/<dataId> -H 'content-type: application/json -d '{"payload":"<payload>"}' to update the entry.
• Both steps will bust the cache entry we had. Run the query for getting all data again to get a new entry
• Query memcached to see the cache: echo get <cache_name>:<cache_key> | nc localhost 11211