* mvn test => to run the basic tests (the tests do not use mocks as i actually wanted to invoke the external API)
* mvn clean spring-boot:run => to run the app with DGS ready to serve graphql queries/mutations
* http://localhost:8080/graphiql => to get to the graphical query editor

query {
  thisTickerValue(symbol: "LTCBTC") {
    symbol
    priceChange
    priceChangePercent
    volume
  }
}

mutation ($symbol: String!) {
  addToWatchList(symbol: $symbol)
}

query {
   watchList 
}

{
  allTickerValues {
    symbol
    volume
  }
}

{
  allMyTickerValues {
    symbol
    volume
  }
}

mutation ($symbol: String!) {
  removeFromWatchList(symbol: $symbol)
}