Using BTC-e API to place orders

[Lykegenes]

Hi!

I'm trying to figure out exactly how the BTCe API works. What i want to do is to make sure my trade is executed right away.

Let's say i have 1000$ and i want to buy all the BTC i can. There is 1 BTC for sale @ 500$, and 5 BTC @ 501$. Which one of these scenarios is what will happen?
1) Can i just tell the API to buy 1 BTC @ 1000$, or 0.1@10000? (and in reality, it will buy 1@500, and the rest @501, or whatever price is the lowest?)
2) Or do i have to make two orders? (one @500, one @501)? What if someone sells @500.5? What if someone buys these coins @500 before i place my order?


Basically, i just don't want to have to handle partially filled orders. Option 1 is the easiest, but i want to be sure it can work this way 

Thanks!

[1714192228]

1714192228

[1714192228]

1714192228

[immerzl]

You will always buy the "cheapest" sales first. So in your example, if you give an order to buy 6 BTC @ 510$, you will get 1 BTC @ 500$ and 5 BTC @ 501. So you will pay 3005$ in total for 6 BTC.