Chilkat Examples

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Swift 3/4 Web API Examples

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(Swift 3/4) Azure REST API Access Token

Demonstrates how to request an Azure REST API OAUTH2 access token.

Note: In order to access resources a Service Principal needs to be created in your Tenant. It is really convenient to do it via AZ CLI:

az ad sp create-for-rbac --name [APP_NAME] --password [CLIENT_SECRET]

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.

    let rest = CkoRest()!

    // URL: https://login.microsoftonline.com/TENANT_ID/oauth2/token
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    var success: Bool = rest.connect("login.microsoftonline.com", port: port, tls: bTls, autoReconnect: bAutoReconnect)
    if success != true {
        print("ConnectFailReason: \(rest.connectFailReason.intValue)")
        print("\(rest.lastErrorText!)")
        return
    }

    // Add query params to the request.
    rest.addQueryParam("grant_type", value: "client_credentials")
    rest.addQueryParam("client_id", value: "APP_ID")
    rest.addQueryParam("client_secret", value: "CLIENT_SECRET")
    rest.addQueryParam("resource", value: "https://management.azure.com/")

    var strResponseBody: String? = rest.fullRequestFormUrlEncoded("POST", uriPath: "/TENANT_ID/oauth2/token")
    if rest.lastMethodSuccess != true {
        print("\(rest.lastErrorText!)")
        return
    }

    var respStatusCode: Int = rest.responseStatusCode.intValue
    if respStatusCode >= 400 {
        print("Response Status Code = \(respStatusCode)")
        print("Response Header:")
        print("\(rest.responseHeader!)")
        print("Response Body:")
        print("\(strResponseBody!!)")
        return
    }

    let json = CkoJsonObject()!
    json.load(strResponseBody)
    json.emitCompact = false
    print("\(json.emit()!)")

    // The result is an access token such as the following:

    // {
    //   "token_type": "Bearer",
    //   "expires_in": "3600",
    //   "ext_expires_in": "3600",
    //   "expires_on": "1557864616",
    //   "not_before": "1557860716",
    //   "resource": "https://management.azure.com/",
    //   "access_token": "eyJ0eXAiOiJKV1QiL ... 20UFDDOHEyUg"
    // }

    // We'll save this JSON to a file for other examples to use..
    json.writeFile("qa_data/tokens/azureToken.json")

}

 

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