How to use BlockChain API?

Question

I am a complete noob to PHP. But I just wanted to know how can you use the BlockChain API to get your wallet balance. I tried but could get no result. I do not even know how to print it. Please help. This is my current code :-

    <?php

    $guid="xxxxxxxxx";
    $main_password="xxxxxxxxx";

    $json_url = "https://blockchain.info/merchant/$guid/balance?password=$main_password";

    $json_data = file_get_contents($json_url);

    $json_feed = json_decode($json_data);

    $message = $json_feed->message;

    ?>

And what exactly is the guid? Is it the wallet identifier?

Answer 1

Your code is close to what you need:

<?php

$guid="xxxxxxxxx";
$main_password="xxxxxxxxx";

$json_url = "https://blockchain.info/merchant/$guid/balance?password=$main_password";

$json_data = file_get_contents($json_url);

$json_feed = json_decode($json_data);

$balance = $json_feed->balance;

echo $balance;
?>

The response looks like this (Wallet Balance in Satoshi):

{ "balance": 1000}

So you need to fetch the balance object not the message one. Then add an echo to print out the balance.