cache-service

Redis cache service over RPC

Architecture

• This is simple cache service over gRPC written in GO and using redis as cache.
• The service is highly modular and can be extended to support other cache providers. without changing the core code.
• Hexagonal architecture is used to make the service modular and easy to extend.

How to run (locally)

• Clone the repo and cd into the directory

  $ git clone https://github.com/swagftw/cache-service
  $ cd cache-service

• Make sure you have redis installed and running on your machine. If not, you can install it from here

• Make some configuration changes to redis-server by running following command

  $ sudo chmod +x ./init/initialize_redis.sh
  $ sudo ./init/initialize_redis.sh

• Run the gRPC server and keep it running

  go run cmd/rpc_server/main.go

• Running rpc client

  • rpc client is a simple cli client to interact with the gRPC server.

  • client supports following commands

    • set <key> <val> - to set a key-value pair in cache
    • get <key> - to get a value for a key from cache
    • setuser <name> <class> <rollNum> - to set a user in cache
    • getuser <name> <rollNum> - to get a user from cache

  • E.g. to set a key-value pair in cache

    $ go run cmd/rpc_client/main.go set foo bar

  • E.g. to get a value for a key from cache

    $ go run cmd/rpc_client/main.go get foo

How to run (using docker)

if you have docker installed on your machine, you can run the service using docker.

$ docker compose up

this will start the service at port 8080 and you can use the client to interact with the service just as mention above.

$ go run cmd/rpc_client/main.go set foo bar