General information about bitcoins (mtgox, mining, etc) here: http://bsdpunk.blogspot.com/2011/07/bitcoins-bitcoins-bitcoins.html
I've been messing around with bitcoin, and I found a bot at :
http://bitklein.com/bot.php
What I did was minimize the bot, and change it so it buys bit coins if they are less than 15 dollars, and I have over 60 bucks in my MtGox account.
If the bitcoins become worth over 24 dollars, sell all of them. I also have the mtgox bitcoin app on my phone in case I need to dump them.
function mtgox_query($path, array $req = array()) {
$key='yourkey'; //<----KEY!
$secret='yoursecret'; //<-SECRET!
$mt = explode(' ', microtime());
$req['nonce'] = $mt[1].substr($mt[0], 2, 6);
$post_data = http_build_query($req, '', '&');
$headers = array(
'Rest-Key: '.$key,
'Rest-Sign: '.base64_encode(hash_hmac('sha512', $post_data, base64_decode($secret), true)),
);
static $ch = null;
if (is_null($ch)) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MtGox PHP client; '.php_uname('s').'; PHP/'.phpversion().')');
}
curl_setopt($ch, CURLOPT_URL, 'https://mtgox.com/api/'.$path);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$res = curl_exec($ch);
if ($res === false) throw new Exception('Could not get reply: '.curl_error($ch));
$dec = json_decode($res, true);
if (!$dec) throw new Exception('Invalid data received, please ma
ke sure connection is working and requested API exists');
return $dec;
}
$decoded=mtgox_query('0/getOrders.php?since=0');
var_dump($decoded);
//print_r($decoded);
$seconds_wait = 40;
$truth = TRUE;
while($truth){
sleep($seconds_wait);
echo "----------------------------------------\n";
$r=mtgox_query('0/getFunds.php');
echo "USD TOTAL: ".$r['usds']."\n";
echo "BTC TOTAL: ".$r['btcs']."\n\n";
$decoded=mtgox_query('0/data/ticker.php');
// echo date('l jS \of F Y h:i:s A')."\n";
echo "LAST:".$cur_last=$decoded['ticker']['last']."\n";
echo "BUY:".$cur_buy=$decoded['ticker']['buy']."\n";
echo "SELL:".$cur_sell=$decoded['ticker']['sell']."\n";
echo "HIGH:".$cur_high=$decoded['ticker']['high']."\n";
echo "AVERAGE:".$cur_avg=$decoded['ticker']['avg']."\n";
echo "VWAP:".$cur_vwap=$decoded['ticker']['vwap']."\n\n";
if(($r['usds'] > 60) && ($cur_buy < 15) ){
$amount= ($r['usds'] / $cur_buy);
$amount = number_format($amount, 2, '.', '');
$price=$cur_buy;
echo " PRICE: $price AMOUNT: $amount";
echo "Buying Bit coins to cancel transaction hit Ctrl C\n";
sleep(30);
$req=array('amount'=>$amount,'price'=>$price);
$decoded=mtgox_query('0/buyBTC.php',$req);
echo "STATUS: ".$decoded['status']."\n";
}
if($cur_sell > 24 ){
echo "Selling Bitcoins\n";
$price = $cur_sell;
$amount = $r['btcs'];
$req=array('amount'=>$amount,'price'=>$price);
$decoded=mtgox_query('0/sellBTC.php',$req);
echo "STATUS: ".$decoded['status']."\n";
$truth = FALSE;
}
}
You can get information about mtgox's api here, and about the bot: http://bsdpunk.blogspot.com/2011/07/bitcoin-software-for-mtgoxs-api.html
When I run this script I actually start a screen session, then type: php mtgox.php > mtgox.log
After that I open a terminal window and tail -f mtgox.log
