3DS Mobile SDK Methods

Create Session

This method collects information from the browser on the background and sends it to the Basis Theory API, which then returns a newly created 3DS section.

Usage

iOS

let threeDSService = // Initialize threeDSService

let session = try await threeDSService.createSession(tokenId: textFieldContent)

Android

let threeDSService = // Initialize threeDSService

let session = await threeDSService.createSession(tokenId)

Parameters

The createSession method takes an object as parameter w/ the following attributes:

Attribute	Required	Type	Description
pan	true	string	The Basis Theory token id for the card token to be used

Return

The method returns a CreateThreeDsSessionResponse object with the following attributes:

Attribute	Type	Description
id	string	The created session id
cardBrand	string	The brand for the used card (i.e. Visa)

Start Challenge

This method initiates the 3DS challenge process, if it was deemed necessary during the 3DS authentication.

Usage

iOS

let threeDSService = // Initialize threeDSService
let session = // Create 3DS Session

try await self.threeDSService.startChallenge(
    sessionId: sessionId, viewController: self,
        onCompleted: { result in
          // process successful challenge result
        },
        onFailure: { result in
          // process failed challenge result
        })

Parameters

The startChallenge method takes in the following attributes:

Attribute	Type	Description
sessionId	string	The 3DS session ID provided by createSession
viewController	Activity	ViewController
onCompleted	Function	Callback to handle 3DS challenge completion.
onFailure	Function	Callback to handle 3DS challenge failure

Both callback functions take a ChallengeResponse object with the following properties:

public struct ChallengeResponse {
    public let id: String
    public let status: String // "successful" | "attempted" | "failed" | "unavailable" | "rejected"
    public let details: String? // additional details depending on the status
}

Android

let threeDSService = // Initialize threeDSService
let session = // Create 3DS Session

threeDsService.startChallenge(
        session.id,
        activity, // current activity
        ::onChallengeCompleted, // success handler
        ::onChallengeFailed // failure handler
)

Parameters

The startChallenge method takes in the following attributes:

Attribute	Type	Description
sessionId	string	The 3DS session ID provided by createSession
activity	Activity	Activity or FragmentActivity
onCompleted	Function	Callback to handle 3DS challenge completion.
onFailure	Function	Callback to handle 3DS challenge failure

Callbacks

Success callback

fun onChallengeCompleted(result: ChallengeResponse) {
  // process successful challenge result
}

Failure callback

fun onChallengeFailed(result: ChallengeResponse) {
  // process failed challenge result
}

Both callback functions take a ChallengeResponse object with the following properties:

data class ChallengeResponse(
    val id: String,
    val status: String, // "successful" | "attempted" | "failed" | "unavailable" | "rejected"
    val details: String? = null // additional details depending on the status
)