Listing of bitcoin and ethereum

[hussu010]

Use these endpoints to get Bitcoin price and volume: https://api.gemini.com/v1/pubticker/btcusd https://api.kraken.com/0/public/Ticker?pair=BTCUSD https://api-pub.bitfinex.com/v2/tickers?symbols=tBTCUSD

And these endpoints to get Ethereum price and volume: https://api.gemini.com/v1/pubticker/ethusd https://api.kraken.com/0/public/Ticker?pair=ethUSD https://api-pub.bitfinex.com/v2/tickers?symbols=tETHUSD

And this methodology to get the Volume Weighted Average: https://github.com/coinratecap/Backend/issues/40#issuecomment-778971838

[nateshmbhat]

Once my other PR is merged , you can create entries for bit coin like shown below :

        new ExchangeApiStructure({
            exchange: Exchange.findOne({
                name: 'binance'
            }),
            coin: Coin.findOne({
                symbol: 'BTC'
            }),
            endPointPath: '',
            queryParams: {
                symbol: 'BTCUSD'
            },
            ///See https://www.npmjs.com/package/jsonpath for syntax reference
            priceJsonPath: '$.weightedAvgPrice',

            ///See https://www.npmjs.com/package/jsonpath for syntax reference
            volumeJsonPath: '$.volume',
        })

For Ethereum like shown below :

        new ExchangeApiStructure({
            exchange: Exchange.findOne({
                name: 'binance'
            }),
            coin: Coin.findOne({
                symbol: 'ETH'
            }),
            endPointPath: '',
            queryParams: {
                symbol: 'ETHUSD'
            },
            priceJsonPath: '$.weightedAvgPrice',
            volumeJsonPath: '$.volume',
        })

You can repeat the same for other exchange sites also by changing the endPointPath, queryParams , priceJsonPath and volumeJsonPath guys.

[nateshmbhat]

I have raised the PR here : #52 which contains some example entries for the collection.

[sangamkotalwar]

@nateshmbhat @Wisdom132 are we only going to list two coins? what about maintaining the db with API endpoints and fetching it likewise?

[melodyogonna]

@sangamkotalwar We will add other coins, we're starting with BTC and ETH for now

[sangamkotalwar]

@melodyogonna if we are going to create seperate class instances for each exchange for each coin, that is not a feasible solution for scalability. Can you please confirm if this is only for POC?

[hussu010]

@sangameshBB, it's just a POC so we are going to store all the endpoints in the database later on.

[hussu010]

These are the API docs of the exchanges that were used to get the price of the coins:

https://docs.pro.coinbase.com/ https://www.kraken.com/features/api https://docs.bitfinex.com/reference https://docs.gemini.com/rest-api/ https://github.com/binance-us/binance-official-api-docs/blob/master/rest-api.md