Add JWT authorisation server to generate the JWT's

Also add security configuration to secure api endpoints

Create tests for all adding BUY and/or SELL orders

Bid/Buy

• shouldAddOrderToBook
• orderVolumesShouldMatchOrdersAtPrice

Ask/Sell

• shouldAddOrderToBook
• orderVolumesShouldMatchOrdersAtPrice

Create core functionality to add and/or remove orders from an orderbook

The API should have at-least the following endpoints:

1. Get order book: Use this API as a reference for request and response payload https://api.valr.com/BTCZAR/orderbook
2. Submit limit order: Use this API as a reference for request and response payload https://api.valr.com/v1/orders/limit. This can be a very simple data structure and does not need to cater for all the advanced usages. Feel free to ask if you have any questions here. (see https://docs.valr.com for the API reference if needed)
3. Recent Trades : Similar to https://api.valr.com/BTCZAR/tradehistory

Create tests to cancel BUY and/or SELL orders

Create tests to match existing orders with each other.

Bid/Buy

• bidShouldMatchWithExistingAskOrder
• bidShouldMatchWithExistingAskAndCreateBidForResidualVolume
• bidShouldMatchMultipleAsks
• shouldApplyFirstInFirstOutWhenMatching

Ask/Sell

• askShouldMatchWithExistingBidOrder
• askShouldMatchWithExistingBidAndCreateBidForResidualVolume
• askShouldMatchMultipleBids
• shouldApplyFirstInFirstOutWhenMatching