Group Cache Proof of Concept

Usage

• Ensure Go 1.16 is installed
• Ensure Postgres 12 is installed
• Run

sudo -u postgres createdb group_cache_poc

• Update password of postgres user in ./env/config.json
• Run

go build main.go

• Run

./main -addr=:8080 -pool=http://localhost:8080,http://localhost:8081 &

• Run

./main -addr=:8081 -pool=http://localhost:8081,http://localhost:8080 &

• Database Tables will be created automatically
• 2 HTTP servers will start on ports 8080 and 8081

RESTful API

• get : GET kv/get?key=k
• set (upsert) : POST kv/set?key=k&value=v

Testing

curl -X POST "localhost:8080/kv/set?key=foo&value=bar"

curl "localhost:8081/kv/get?key=foo"

References

• https://www.mailgun.com/blog/golangs-superior-cache-solution-memcached-redis
• https://github.com/mailgun/groupcache
• https://www.alexedwards.net/blog/organising-database-access