createToken function returns null for currency field for token object

[alxndr777]

Describe the bug
React Native.
@stripe/stripe-react-native

I am trying to add a debit card for payout method for connect account in test mode.
I am using cards from here: https://stripe.com/docs/connect/testing#test-debit-card-numbers

When I submit the token to Stripe API I get this error in response:

{
"error": {
"message": "You must provide a card that has the 'currency' field set when adding a card to a Stripe account.",
"param": "external_account",
"type": "invalid_request_error"
}
}

That means that I don't send a currency field in request. For creating a token I am using createToken function.

const token_prep = {...card, currency: 'usd'}

console.log(token_prep); //Object {
"brand": "MasterCard",
"complete": true,
"currency": "usd",
"expiryMonth": 12,
"expiryYear": 24,
"last4": "8210",
"postalCode": "06514",
"validCVC": undefined,
"validExpiryDate": undefined,
"validNumber": undefined,
}

const { token, error } = await createToken(token_prep);

console.log(token); //Object {
"bankAccount": null,
"card": Object {
"address": Object {
"city": null,
"country": null,
"line1": null,
"line2": null,
"postalCode": null,
"state": null,
},
"brand": "MasterCard",
"country": "US",
"currency": null,
"expMonth": 12,
"expYear": 2024,
"funding": "Debit",
"last4": "8210",
"name": null,
},
"created": "1655960704000",
"id": "tok_1LDiE0DEHw6rr3PAtTHtGVMt",
"livemode": false,
"type": "Card",
}

As you can see after passing card info and currency field to createToken function it returns null for currency field for token object which is causing error from Stripe. Can you please help me with this issue?

Thank you.

[charliecruzan-stripe]

This was fixed in #862, please upgrade to at least v0.5.0 to get the fix :)

[alxndr777]

Thank you for your response, but I am using the latest version [0.13.1] and issue is still there. Can you help?

…

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