example:
  db:
    driver: mysql
    dsn: root:1234@tcp(127.0.0.1:3306)/tutorial?charset=utf8mb4&parseTime=True&loc=Local
    log:
      level: info
      slow-threshold: 200ms
      ignore-record-not-found-error: false
      parameterized-queries: false
    mysql:
      skip-initialize-with-version: false
      default-string-size: 0
      disable-with-returning: false
      disable-datetime-precision: false
      dont-support-rename-index: false
      dont-support-rename-column: false
      dont-support-for-share-clause: false
      dont-support-null-as-default-value: false
      dont-support-rename-column-unique: false
    postgres:
      prefer-simple-protocol: false
      without-returning: false
    pool:
      max-idle-conns: 2
      max-open-conns: -1
      conn-max-lifetime: ""
      conn-max-idle-time: ""
  biz:
    api:
      secret: "my_secret"