Bitcoin transaction You must provide a recipient address error

Question

I have written a code to send and receive transaction using bitcoin address. I have only Bitcoin addresses for send and receive. Also I do not have a My Wallet account.

$to = // Bitcoin address1

$from = // Bitcoin address2

$json_url = "https://blockchain.info/merchant/d15dea6639d24b81e5caefad8aa4b0c6831cdccf1c21f8c234fd568d40e4238d/payment?to=$to&amount=5000&from=$from";

I got below error.

"You must provide a recipient address"

Answer 1

You need an account with BlockChain to send payments. You don't need an account to receive.

I use the following code and it works:

<?php


$guid="GUID_HERE";

$firstpassword="PASSWORD_HERE";

$secondpassword="PASSWORD_HERE";

$amounta = "10000000";

$amountb = "400000";

$addressa = "1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq";

$addressb = "1ExD2je6UNxL5oSu6iPUhn9Ta7UrN8bjBy";

$recipients = urlencode('{

              "'.$addressa.'": '.$amounta.',

              "'.$addressb.'": '.$amountb.'

           }');


$json_url = "http://blockchain.info/merchant/$guid/sendmany?password=$firstpassword&second_password=$secondpassword&recipients=$recipients";


$json_data = file_get_contents($json_url);


$json_feed = json_decode($json_data);


$message = $json_feed->message;

$txid = $json_feed->tx_hash;


?>

To know more, visit: https://www.blockchain.com/api/blockchain_wallet_api