- Sat Oct 28, 2017 6:08 pm
#71321
Hello,
I'd someone could give some indications about how to pull some data form an API getting an float variable with it.
I am using an ESP 01 and NodeMCU with Arduino IDE
In this case I want some specific values from Coinmarketcap API related to the value of Bitcoin.
With: https://api.coinmarketcap.com/v1/ticker/bitcoin/ I get:
[
{
"id": "bitcoin",
"name": "Bitcoin",
"symbol": "BTC",
"rank": "1",
"price_usd": "5771.44",
"price_btc": "1.0",
"24h_volume_usd": "1391300000.0",
"market_cap_usd": "96102769559.0",
"available_supply": "16651437.0",
"total_supply": "16651437.0",
"percent_change_1h": "0.46",
"percent_change_24h": "-0.24",
"percent_change_7d": "-4.47",
"last_updated": "1509231251"
}
]
What should I do to get in a float its value in USD? In that case 5771.44
Thank you in advance,
David
I'd someone could give some indications about how to pull some data form an API getting an float variable with it.
I am using an ESP 01 and NodeMCU with Arduino IDE
In this case I want some specific values from Coinmarketcap API related to the value of Bitcoin.
With: https://api.coinmarketcap.com/v1/ticker/bitcoin/ I get:
[
{
"id": "bitcoin",
"name": "Bitcoin",
"symbol": "BTC",
"rank": "1",
"price_usd": "5771.44",
"price_btc": "1.0",
"24h_volume_usd": "1391300000.0",
"market_cap_usd": "96102769559.0",
"available_supply": "16651437.0",
"total_supply": "16651437.0",
"percent_change_1h": "0.46",
"percent_change_24h": "-0.24",
"percent_change_7d": "-4.47",
"last_updated": "1509231251"
}
]
What should I do to get in a float its value in USD? In that case 5771.44
Thank you in advance,
David
