Swift

Azure OAuth2 Client Credentials Grant Flow

See more OAuth2 Examples

Demonstrates how to get an OAuth2 access token for an Azure Registered App using the Client Credentials Grant Flow.

Note: Your Azure app must be registered as a single-tenant app to use client credentials.

Swift

func chilkatTest() {
    var success: Bool = false

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

    let http = CkoHttp()!

    let req = CkoHttpRequest()!
    req.addParam(name: "client_secret", value: "CLIENT_SECRET")
    req.addParam(name: "client_id", value: "CLIENT_ID")

    // See Understanding Scopes in Azure OAuth2 Client Credentials Flow
    req.addParam(name: "scope", value: "https://graph.microsoft.com/.default")

    req.addParam(name: "grant_type", value: "client_credentials")

    // Note: Your Azure app must be registered as a single-tenant app to use client credentials.
    // Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
    var url: String? = "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token"

    req.httpVerb = "POST"
    req.contentType = "application/x-www-form-urlencoded"

    let resp = CkoHttpResponse()!
    success = http.httpReq(url: url, request: req, response: resp)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    var statusCode: Int = resp.statusCode.intValue
    print("Response status code = \(statusCode)")

    let json = CkoJsonObject()!
    json.load(json: resp.bodyStr)

    json.emitCompact = false
    print("\(json.emit()!)")

    // Sample successful output:

    // {
    //   "token_type": "Bearer",
    //   "expires_in": 3599,
    //   "ext_expires_in": 3599,
    //   "access_token": "eyJ0eX...K0jOERg"
    // }

    if statusCode == 200 {
        json.writeFile(path: "qa_data/tokens/azureClientCredentialsToken.json")
        print("Success.")
    }
    else {
        print("Failed.")
    }


}