A simple bank Application backend with Golang

Topic covered

• Create and manage account
  • owner, balance, currency
• Money transfer transaction
  • create an account entry for each change
• Money transfer transaction
  • perform money transfer between 2 accounts
  • consistent transactions

Database Design

Viper

• find, load, unmarshal config file (json, yaml, toml, env, ini)
• read config from env variables
• read config from remote system etcd, consul
• live watcher for changing config files

mock database for test

• isolates test data to avoid conflicts
• faster to test
• can achieve 100% test coverage