The user has a multi-currency account with starting balance of 1000 Euros (EUR). He can convert any currency to any if the rate is provided by the API but the balance can't fall below zero. Create an input where the user will enter amount, picker for currency being sold and a picker for currency being bought.
For example, user inputs 100.00, picks Euros to sell and Dollars to buy. User then clicks Submit button, a message is shown You have converted 100.00 EUR to 110.30 USD and now the balance is 900.00 Euros and 110.30 US Dollars.
- The API is public and no authentication is required
URI: `http://api.exchangeratesapi.io/v1/latest
Response example:
{
"rates": {
"JPY": 118.52,
"USD": 1.103,
"GBP": 0.90155
},
"base": "EUR",
"date": "2019-10-10"
}
- the task must be done in Swift and SwiftUI
- third-party libraries, tools, frameworks can be used
- the system should be maintainable & expandable
This projected reflects work done during the time limit of 5 hours.