Code Challenge
Task Description
Write a simple web app in Ruby or Elixir showing price history of BTC and ETH on CoinJar Exchange. The application should:
- Capture the prices when a "Capture" button is triggered. This should save prices of 2 currencies into the database. (Tip: you want to capture the freshest prices as possible here)
- View a list of currencies and the latest prices.
- Click a link and see the history of captured prices of a currency in descending order (by time).
- Capture the price of last, bid and a sk.
Other points of interest:
- Allow for between 2 - 4 hours to complete this, however time is not important but rather quality.
- Tests
API
You may use the CoinJar Exchange ticker API. The endpoints you will need are:
- https://data.exchange.coinjar.com/products/BTCAUD/ticker
- https://data.exchange.coinjar.com/products/ETHAUD/ticker
Example response
{
"volume_24h": "83.85000000",
"volume": "19.71000000",
"transition_time": "2018-06-21T07:50:00Z", "status": "continuous",
"session": 3190,
"prev_close": "9211.00000000",
"last": "9210.00000000",
"current_time": "2018-06-21T02:08:23.832377Z",
"bid": "9211.00000000",
"ask": "9242.00000000"
}