Selenium webdriver not finding add to cart button in Amazon - selenium

Question

After selecting a product and opening it in another page Im not able to click on add to cart button in amazon using selenium.

Answer 1

If you are not switching to other page, Add to card option will not be located.
Switch to the opened page and then try to click on the button.
handles = driver.window_handles
driver.switch_to.window(handles[1])
driver.find_element_by_id("add-to-cart-button").click()
If you have done this, share the code you have tried and error you get.

Answer 2

Without HTML page you are trying to perform, it is difficult to pinpoint exactly. However, I would like to take a stab at it considering these:
Click on product in home page
Product opens in a new tab window
Click on add to cart
P.S: I will write it using Java since you haven't mentioned on the language being used. Will be similar in others as well
Click on product in home page
List <Webelement> productCheck = driver.findElements(By.xpath("<xpath of the product>"))
if (productCheck.size() == 0){
// do something
else {
driver.findElement(By.xpath("<xpath of the product>")).click();
}
Product opens in a new tab window and Click on add to cart
String parent = driver.getWindowHandle();
List<String> windows = new ArrayList<String>(driver.getWindowHandles());
driver.switchTo().window(windows.get(1));
// Inside the tab window
List <WebElement> addtoCartButton = driver.findElements(By.xpath("<xpath of Add to cart button>"));
if (addtoCartButton.size() == 0 ) {
// do something
else {
driver.findElement(By.xpath("<xpath of Add to cart button>")).click();
}
// do whatever you want in the new tab and if you want to switch back then:
driver.switchTo().window(parent);