Btcprice is a fast, simple and clean way to get the price of Bitcoin. The package uses the Blockchain API as a source of the price. Btcprice can be used with custom source of data too.

• Installation
• Getting Started
• License

Installation

Install via go get

To install btcprice, use go get.

$ go get github.com/kplachkov/btcprice/

Getting Started

$ godoc github.com/kplachkov/btcprice/

Code Example:

package main

import (
	"fmt"
	"log"
	"time"

	"github.com/kplachkov/btcprice"
)

// Prints the time and the price of Bitcoin.
func printBtcPriceAndTime(btcPrice float64, t time.Time) {
	fmt.Println(t.Format(time.RFC3339))
	fmt.Println("Bitcoin price:", btcPrice)
}

// Checks for changes in the price of Bitcoin.
func checkBtcPrice(timeDuration time.Duration) {
	blockchain, serErr := btcprice.NewBlockchainService()
	if serErr != nil {
		log.Fatal(serErr)
	}
	btcPrice := blockchain.BitcoinPrice.Usd.Last // The latest price of Bitcoin.
	printBtcPriceAndTime(btcPrice, time.Now())
	// Prints the time and the latest Bitcoin price if the price has changed.
	for t := range time.NewTicker(timeDuration).C {
		newBtcErr := blockchain.Update(nil)
		if newBtcErr != nil {
			log.Fatal(newBtcErr)
		}
		newBtcPrice := blockchain.BitcoinPrice.Usd.Last
		// If the price has changed, it prints the time and up to date price.
		if btcPrice != newBtcPrice {
			printBtcPriceAndTime(newBtcPrice, t)
		}
		btcPrice = newBtcPrice
	}
}

func main() {
	checkBtcPrice(time.Second) // Check the price of Bitcoin every second.
}

License

BSD 3-Clause

Copyright (c) 2018-Present, kplachkov