In Stripe API - Facing error like Missing required param: amount

Question

Stripe API, Trying to intergate in my code using cURL, But face the error. I am getting the following error

{
    "error": {
        "code": "parameter_invalid_integer",
        "doc_url": "https://stripe.com/docs/error-codes/parameter-invalid-integer",
        "message": "Invalid integer: <integer>",
        "param": "amount",
        "request_log_url": "https://dashboard.stripe.com/test/logs/req_r1VgKFZTeHcKu1?t=1686081517",
        "type": "invalid_request_error"
    }
}

Code:

$token = "XXXXX";
curl_setopt($curl, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded",                                                                               
"Accept: application/json","Authorization: Bearer $token"));

$data = array(
    "amount"=> (int)$amount,
    "payment_method"=>$paymentId,
    "confirm"=> "true",
    "confirmation_method"=>"automatic",
    "currency"=> "dollor",
    "customer"=> $paymentMethod->customer                
);
$jsonPayload = json_encode($data);
curl_setopt($curl, CURLOPT_URL, "https://api.stripe.com/v1/payment_intents");
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $jsonPayload);           
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);            
$output = curl_exec($curl);           
curl_close($curl);

I tried many ways, it shows error like amount is Invalid Integer.

UPDATE

I'm also getting the same error using Postman

Output of var_dump($data)

array(6) { 
    ["amount"]=> int(5000)
    ["payment_method"]=> string(27) "pm_1NGHfRSHUnJwHMxFxRyvs03T"
    ["confirm"]=> string(4) "true"
    ["confirmation_method"]=> string(9) "automatic" 
    ["currency"]=> string(3) "USD"
    ["customer"]=> string(18) "cus_O22SRWfvFRfVvE"
}

The content type should be `application/json`. I'm not sure if that will make a difference, though. — Barmar, Jun 06 '23 at 20:35
Have you tried going to the log URL to see exactly what they received? — Barmar, Jun 06 '23 at 20:37
Is `dollor` really an allowed currency? See https://stripe.com/docs/currencies for the acceptable currency codes, you're supposed to use 3-letter codes. — Barmar, Jun 06 '23 at 20:39
FYI: Note that the parameter `amount` is the amount the customer has to pay in [cents](https://stripe.com/docs/api/transfers/object#transfer_object-amount) — DarkBee, Jun 07 '23 at 06:38
@Barmar. Thanks, In Log it shows like parameter_invalid_integer - amount Invalid integer: . I changed the currency (USD), Still I faced that issue — Mukhila Asokan, Jun 07 '23 at 09:32
@DarkBee, I noted, I passed the amount in cents, Still I have faced that issue — Mukhila Asokan, Jun 07 '23 at 09:34
Can you post a `var_dump($data);` before encoding it to `JSON`? — DarkBee, Jun 07 '23 at 09:35
@DarkBee I uploaded one image, Please check, I tried the API in Postman. — Mukhila Asokan, Jun 07 '23 at 09:38

score -2 · Answer 1 · edited Jun 07 '23 at 05:13

The error you received indicates that there is an issue with the value you provided for the "amount" parameter in your request to the Stripe API. It seems that the value you passed is not a valid integer.

To fix this error, you should ensure that the value of $amount is a valid integer before sending the request. You can use the intval() function to convert the value to an integer explicitly. Here's an updated version of your code with the necessary modification:

$token = "XXXXX";
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
    "Content-Type: application/x-www-form-urlencoded",
    "Accept: application/json",
    "Authorization: Bearer $token"
));

$data = array(
    "amount" => intval($amount),
    "payment_method" => $paymentId,
    "confirm" => "true",
    "confirmation_method" => "automatic",
    "currency" => "dollor",
    "customer" => $paymentMethod->customer
);
$jsonPayload = json_encode($data);
curl_setopt($curl, CURLOPT_URL, "https://api.stripe.com/v1/payment_intents");
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $jsonPayload);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);

By using intval($amount) in the code, the value of $amount will be cast to an integer, resolving the "Invalid integer" error you encountered. Make sure that the value of $amount is indeed a valid integer or can be safely converted to one.

There is no real difference in casting the value with `(int)` or using the function `intval` - See [here](https://stackoverflow.com/questions/1912599/is-there-any-particular-difference-between-intval-and-casting-to-int-int-x) — DarkBee, Jun 07 '23 at 05:42

In Stripe API - Facing error like Missing required param: amount

1 Answers1