thomasma / dgs-boot-gql

Read Me First

This app will start a Netflix-DGS Graphql server (running on Spring Boot) and serve Graphql requests at http://localhost:8080/graphiql

The service calls an external API hosted by Binance at Binance APIs. This API returns last 24hr ticker price change stats for 100s of crypto currencies.

• For reference see Binance 24hr ticker price change statistics

Steps to run the example...

* 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

A few queries/mutations for you to test

Retrieve specific ticker...

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

Add to my ticker watchlist...

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

Retrive my ticker watch list...

query {
   watchList 
}

Retrieve data for all tickers...

{
  allTickerValues {
    symbol
    volume
  }
}

Retrieve data for tickers in my watch list...

{
  allMyTickerValues {
    symbol
    volume
  }
}

Delete ticker from my watch list...

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

end..