On the open API I have been using the txrefs object to see if a txinput has been spent

Yes, actually quite straight forward: <div class="snippet-clipboard-content notran

Empty TXRefs on BTC with GetAddrFull about gobcy HOT 3 CLOSED

blockcypher commented on August 15, 2024

Empty TXRefs on BTC with GetAddrFull

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quentinlesceller commented on August 15, 2024 2

See https://www.blockcypher.com/dev/bitcoin/#address:

TXRefs:

Optional Array of transaction inputs and outputs for this address. Usually only returned from the standard Address Endpoint.

Hence this works

package main

import (
	"fmt"

	"github.com/blockcypher/gobcy"
)

func main() {

	blockCypherAPI := gobcy.API{$TOKEN, "btc", "main"}

	blockCypherBtc, err := blockCypherAPI.GetAddr("16dEmsy8uzgPfo5XVZCUEGqZhccT5dqbQ", nil)
	if err != nil {
		fmt.Println(err)
	}

	fmt.Println(blockCypherBtc)
	for _, transaction := range blockCypherBtc.TXRefs {
		//does not reach as TXRefs is empty
		fmt.Println(transaction)
	}
}

With getAddrFull you get the transaction directly.

When in doubt you can always query the API directly with curl
https://api.blockcypher.com/v1/btc/main/addrs/16dEmsy8uzgPfo5XVZCUEGqZhccT5dqbQ/full?limit=50
https://api.blockcypher.com/v1/btc/main/addrs/16dEmsy8uzgPfo5XVZCUEGqZhccT5dqbQ

Closing.

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quentinlesceller commented on August 15, 2024

Do you have some sample code ?

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toschdev commented on August 15, 2024

Yes, actually quite straight forward:

blockCypherAPI := gobcy.API{"xxxxxxxxxxxxxxxxxxxxxxx", "btc", "main"}	

blockCypherBtc, err := blockCypherAPI.GetAddrFull("1btcaddress", nil)	
if err != nil {	
  fmt.Println(err)	
}

// fmt.Println(blockCypherBtc) seems to be fine, has the correct balance etc

for _, transaction := range blockCypherBtc.TXRefs {
  //does not reach as TXRefs is empty
}

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