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Note: This SDK is Swift 3.0 thanks to UberJason. Please use Xcode 8 and later 😀

##Synopsis Capital One Nessie API SDK written in Swift, using SwiftyJSON for JSON parsing. This SDK can be easily embedded in an iOS project.


  1. Download the entire SDK directory.
  2. Open the Nessie-iOS-Wrapper.xcworkspace file.
  3. Set your API Key in NSEClient.swift where private var key = ""
  4. Start working by either:
  • Creating a new Project Target and add your work there.
  • Adding your files directly into the Nessie-iOS-Wrapper target. See NessieTestProj for examples.

##Usage and Examples ####Important Note Any parameter marked as optional in the Nessie documentation are also optional in the SDK. They are simply marked as an Optional type in Swift. For instance, accountType is an optional field here: accountTypeExample

In the getAccounts() call, accountType is optional. If you wish to get all accounts regardless of account type, just pass in a nil value for accountType:

        AccountRequest().getAccounts(nil, completion:{(response, error) in 

####Creating a Customer

    func testPostCustomer() {
        // construct the Customer object you want to create
        // in this case, address is an object so it needs its own initializer
        let address = Address(streetName: "Street", streetNumber: "1", city: "City", state: "VA", zipCode: "12345")
        let customerToCreate = Customer(firstName: "Victor", lastName: "Lopez", address: address, customerId: "sup3rc00la1ph4num3r1cId")
        // send the request using the wrapper!
        CustomerRequest().postCustomer(customerToCreate, completion:{(response, error) in
            if (error != nil) {
                // handling the error. You could alternatively not have this block if you so choose
            } else {
                // map the response and determine how to use i
                // in this case, we only print to console
                let customerResponse = response as BaseResponse<Customer>?
                let message = customerResponse?.message
                let customerCreated = customerResponse?.object
                print("\(message): \(customerCreated)")

####Retrieving Customers

    func testGetCustomers() {
        // Retrieve all the Customers!
        CustomerRequest().getCustomers({(response, error) in
            if (error != nil) {
                // optionally handle the error here
            } else {
                // we are expecting back an array of customers. Type check!
                if let array = response as Array<Customer>? {
                    // if there are Customers in the result, print the first Customer
                    if array.count > 0 {
                        let customer = array[0] as Customer?
                    } else {
                        print("No accounts found")

You can find examples here.