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(Swift 2) RSAP Union API - Get OAuth2 Access Token

Demonstrates how to get an OAuth2 access token for the RSAP Union API. Note: This uses the client credentials flow, which does NOT require an interactive engagement using a browser.

For more information, see https://app.swaggerhub.com/apis-docs/pderas/RSAP/2.0.1#/Authentication/getOauthToken

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

    // The following JSON is sent in the request body.

    // {
    //   "grant_type": "client_credentials",
    //   "client_id": 1234,
    //   "client_secret": "23456abcde"
    // }

    let json = CkoJsonObject()
    json.UpdateString("grant_type", value: "client_credentials")
    json.UpdateInt("client_id", value: 1234)
    json.UpdateString("client_secret", value: "23456abcde")

    http.SetRequestHeader("Content-type", value: "application/json")

    // Add the client certificate TLS authentication.
    let cert = CkoCert()
    success = cert.LoadFromFile("qa_data/certs_and_keys/union_client_certificate.crt")
    if success == false {
        print("\(cert.LastErrorText)")
        return
    }

    let privKey = CkoPrivateKey()
    success = privKey.LoadAnyFormatFile("qa_data/certs_and_keys/union_client_certificate.nopass.key", password: "")
    if success == false {
        print("\(privKey.LastErrorText)")
        return
    }

    // Associate the private key with the cert.
    // This will fail if the private key is not actually the correct one that corresponds to the public key stored within the cert.
    success = cert.SetPrivateKey(privKey)
    if success == false {
        print("\(cert.LastErrorText)")
        return
    }

    // Tell HTTP to use the cert for client TLS certificate authentication.
    success = http.SetSslClientCert(cert)
    if success == false {
        print("\(http.LastErrorText)")
        return
    }

    var resp: CkoHttpResponse? = http.PostJson3("https://api-test.rsap.ca/oauth/token", contentType: "application/json", json: json)
    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)

    // {
    //   "token_type": "Bearer",
    //   "expires_in": 3600,
    //   "access_token": "eyJ0eXAi...LnE"
    // }

    // This token expires in 1 hour.  Your application could re-use the same token for up to an hour,
    // or it can simply get a new access token before each request (if you're not doing too many requests).
    success = jResp.WriteFile("qa_data/tokens/rsapToken.json")

}

 

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