Exemple #1
0
// broadcastTx tries to send the transaction using an api that will broadcast
// a submitted transaction on behalf of the user.
func broadcastTx(tx *btcwire.MsgTx) {
	buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
	tx.Serialize(buf)
	hexstr := hex.EncodeToString(buf.Bytes())

	url := "https://insight.bitpay.com/api/tx/send"
	contentType := "application/json"

	sendTxJson := &sendTxJson{RawTx: hexstr}
	j, err := json.Marshal(sendTxJson)
	if err != nil {
		log.Fatal(fmt.Errorf("Broadcasting the tx failed: %v", err))
	}
	buf = bytes.NewBuffer(j)
	resp, err := http.Post(url, contentType, buf)
	if err != nil {
		log.Fatal(fmt.Errorf("Broadcasting the tx failed: %v", err))
	}

	b, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Printf("The sending api responded with:\n%s\n", b)
}
Exemple #2
0
// dumpHex dumps the raw bytes of a Bitcoin transaction to stdout. This is the
// format that Bitcoin wire's protocol accepts, so you could connect to a node,
// send them these bytes, and if the tx was valid, the node would forward the
// tx through the network.
func dumpHex(tx *btcwire.MsgTx) {
	buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
	tx.Serialize(buf)
	hexstr := hex.EncodeToString(buf.Bytes())
	fmt.Println("Here is your raw bitcoin transaction:")
	fmt.Println(hexstr)
}