What is amount and what is price?

[Lars-]

In this code:

// Place order of $ptype("buy"), for $amount(1), at $price(1), for $couple("GHS/BTC").
place_order($ptype, $amount, $price, $couple);

What is $amount and what is $price?
Is $amount x GHS or x BTC and is $price x GHS or x BTC?

[beefviper]

I think in the case of GHS/BTC, $amount would be the amount of GHS you want to buy, and $price would be the price in BTC you're willing to pay for it.

[Lars-]

Well, I tried with an amount of "1" when using the BTC/EUR couple. So if I understand you correctly, it means that I want to buy 1 BTC with Euros, right?
The error I get: There was an error while placing your order: Invalid amount. So why is 1 an invalid amount?