Collection

After making a pre-Authorization transaction, in most cases you want to collect the amount of a given preAuth. For this you can use the following code snippet and add your own parameters that are necessary to submit the collection.

do {
    let preAuth = try judo.preAuth(myJudoID, amount: oneGBPAmount, reference: validReference).card(validVisaCard)
    
    try preAuth.completion({ (response, error) -> () in
        if let error = error {
            // handle payment failing error
            return
        }
        
        guard let receiptId = response?.first?.receiptID,
            let amount = response?.first?.amount else {
                // payment was successful
                return
        }
        
        do {
            let collection = try self.judo.collection(receiptId, amount: amount).completion({ (response, error) -> () in
                if let error = error {
                    // handle error
                }
            })
        } catch {
            // handle exception thrown (eg. judoId not luhn valid)
        }
    })
} catch {
    // handle exception thrown (eg. judoId not luhn valid)
}

be aware that a collection will only work for either the full amount that has been pre-authorized or any amount lower than that. If you want to collect more than the originally pre-authorized amount you need to do a payment or a new preAuth.