This is an updated version of witnessmenow/arduino-coinmarketcap-api, because the original author is not maintained, I renamed it CoinMarketCapApi2
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include "CoinMarketCapApi.h"
#define APIKEY "YOUR API KEY"
WiFiClientSecure client;
CoinMarketCapApi api(client, APIKEY);
void printTickerData(String ticker){
CMCTickerResponse response = api.GetTickerInfo(ticker, "USD");
if (response.error == "") {
Serial.print("ID: ");
Serial.println(response.id);
Serial.print("Name: ");
Serial.println(response.name);
Serial.print("Symbol: ");
Serial.println(response.symbol);
Serial.print("Rank: ");
Serial.println(response.cmc_rank);
Serial.print("Price: ");
Serial.println(response.price);
Serial.print("24h Volume: ");
Serial.println(response.volume_24h);
Serial.print("Market Cap: ");
Serial.println(response.market_cap);
Serial.print("Circulating Supply: ");
Serial.println(response.circulating_supply);
Serial.print("Total Supply: ");
Serial.println(response.total_supply);
Serial.print("Percent Change 1h: ");
Serial.println(response.percent_change_1h);
Serial.print("Percent Change 24h: ");
Serial.println(response.percent_change_24h);
Serial.print("Percent Change 7d: ");
Serial.println(response.percent_change_7d);
Serial.print("Last Updated: ");
Serial.println(response.last_updated);
}
}
void setup()
{
//...connect your wifi
...
...
//Get cryptocurrency data
printTickerData("BTC","USD");
}