(Swift 2) Okta: Refresh Access Token with the Auth Code Flow

Demonstrates how to refresh a token that was obtained using the authorization code flow.

For more information, see https://developer.okta.com/docs/guides/implement-auth-code-pkce/use-flow/

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // See Get Okta Access Token using Authorization Code Flow with PKCE 
    // for sample code showing how to obtain an Okta access token using the authorization code flow for native apps (with PKCE).

    let jsonToken = CkoJsonObject()
    var success: Bool = jsonToken.LoadFile("qa_data/tokens/okta.json")
    if success != true {
        print("Failed to load myob.json")
        return
    }

    let oauth2 = CkoOAuth2()

    oauth2.TokenEndpoint = "https://{yourOktaDomain}/oauth2/default/v1/token"

    // Replace these with actual values.
    oauth2.ClientId = "OKTA_CLIENT_ID"
    oauth2.ClientSecret = "OKTA_CLIENT_SECRET"

    // Get the "refresh_token"
    oauth2.RefreshToken = jsonToken.StringOf("refresh_token")

    // Send the HTTP POST to refresh the access token..
    oauth2.VerboseLogging = true
    success = oauth2.RefreshAccessToken()
    if success != true {
        print("\(oauth2.LastErrorText)")
        return
    }

    // Load the access token response into the json object 
    jsonToken.Load(oauth2.AccessTokenResponse)

    // Save the new JSON access token response to a file.
    // The access + refresh tokens contained in this JSON will be needed for the next refresh.
    let sbJson = CkoStringBuilder()
    jsonToken.EmitCompact = false
    jsonToken.EmitSb(sbJson)
    sbJson.WriteFile("qa_data/tokens/okta.json", charset: "utf-8", emitBom: false)

    print("OAuth2 authorization granted!")
    print("New Access Token = \(oauth2.AccessToken)")

}