Crypto Compare
Overview
A server that accepts a list of coins and a date in the past and returns the price (in USD$) difference in percentage between that time and now, sorted from best performing coin to worst.
E.g. the user sends this list: BTC, ETH, BNB, DOGE
And the date 01/01/2020
The system will return: DOGE: 3010%, BTC: 200%, ETH: 50%, BNB: -10%
Getting Started
- Make sure you have yarn installed.
- execute
yarn install && yarn build
- execute
yarn start
to start the server
API reference
Local usage
call http://localhost:8080/coin-compare
with the following request parameters:
- coinsyms: list of coin symbols comma-sepaerated (e.g.
BTC,ETH,BNB
) - date:
DD-MM-YYYY
formated date (e.g.17-02-2020
)
GET http://localhost:8080/coin-compare?coinsyms=BTC,ETH,BNB&date=17-02-2020
result format
A json array of objects with symbol
and priceDiffPercents
fields sorted by highest to lowest priceDiffPercents
for example:
[
{
"symbol": "SOL",
"priceDiffPercents": 9648.105672742164
},
{
"symbol": "ETH",
"priceDiffPercents": 745.4898575744496
},
{
"symbol": "BTC",
"priceDiffPercents": 206.00000000000006
}
]
Still missing:
- routes tests
- integraton tests
- Better error handling
- Caching known past results with node-lru-cache
- default route handling
- much more...