(Swift 3,4,5...) Okta: Use the Resource Owner Password Flow

Demonstrates how to get an access token using the Resource Owner Password Flow.

For more information, see https://developer.okta.com/docs/guides/implement-password/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 assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!
    var success: Bool

    // Implements the following CURL command:

    // curl --request POST \
    //   --url https://{yourOktaDomain}/oauth2/default/v1/token \
    //   --header 'accept: application/json' \
    //   --user "client_id:client_secret" \
    //   --header 'content-type: application/x-www-form-urlencoded' \
    //   --data 'grant_type=password&username=myUserEmail&password=myPassword&scope=openid'

    http.login = "client_id"
    http.password = "client_secret"

    let req = CkoHttpRequest()!
    req.httpVerb = "POST"
    req.path = "/oauth2/default/v1/token"
    req.contentType = "application/x-www-form-urlencoded"
    req.addParam("grant_type", value: "password")
    req.addParam("username", value: "myUserEmail")
    req.addParam("password", value: "myPassword")
    req.addParam("scope", value: "openid")

    req.addHeader("accept", value: "application/json")

    var resp: CkoHttpResponse? = http.postUrlEncoded("https://{yourOktaDomain}/oauth2/default/v1/token", req: req)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    let sbResponseBody = CkoStringBuilder()!
    resp!.getBodySb(sbResponseBody)
    let jResp = CkoJsonObject()!
    jResp.loadSb(sbResponseBody)
    jResp.emitCompact = false

    print("Response Body:")
    print("\(jResp.emit()!)")

    var respStatusCode: Int = resp!.statusCode.intValue
    print("Response Status Code = \(respStatusCode)")
    if respStatusCode >= 400 {
        print("Response Header:")
        print("\(resp!.header!)")
        print("Failed.")
        resp = nil
        return
    }

    resp = nil

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "access_token": "eyJraWQiOi ... jmiHD7wY9_gQ",
    //   "token_type": "Bearer",
    //   "expires_in": 3600,
    //   "scope": "openid",
    //   "id_token": "eyJraWQiOiJ ... W7KkWiPJnUSMoGw"
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    var access_token: String? = jResp.string(of: "access_token")
    var token_type: String? = jResp.string(of: "token_type")
    var expires_in: Int = jResp.int(of: "expires_in").intValue
    var scope: String? = jResp.string(of: "scope")
    var id_token: String? = jResp.string(of: "id_token")

}