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Swift

Configure Google Service Account Authentication for REST

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Demonstrates Rest.SetAuthGoogle, which associates an AuthGoogle provider so Chilkat supplies a Google OAuth 2.0 bearer token on each request. The provider is configured with a service account JSON key and the required OAuth scope.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

Background. The AuthGoogle provider performs a service-account (server-to-server) OAuth flow. For interactive, browser-based user consent, the OAuth2 provider is used instead.

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Swift

func chilkatTest() {
    var success: Bool = false

    let rest = CkoRest()!
    var bTls: Bool = true
    var bAutoReconnect: Bool = true
    success = rest.connect(hostname: "example.com", port: 443, tls: bTls, autoReconnect: bAutoReconnect)
ERROR: "=" expected
ERROR: Undefined variable(CHECK_SUCCESS)

    //  Configure Google service-account authentication.  Load the service account JSON key and set the
    //  required OAuth scope(s).
    let gAuth = CkoAuthGoogle()!

    let sbJsonKey = CkoStringBuilder()!
    var bLoaded: Bool = sbJsonKey.loadFile(path: "qa_data/service_account.json")
    if bLoaded != true {
        print("Failed to load the service account JSON key.")
        return
    }

    var jsonKey: String? = sbJsonKey.getAsString()
    if sbJsonKey.lastMethodSuccess == false {
        print("\(sbJsonKey.lastErrorText!)")
        return
    }

    gAuth.jsonKey = jsonKey

    //  A space-delimited list of the requested permissions.
    gAuth.scope = "https://www.googleapis.com/auth/cloud-platform"

    //  Associate the provider so Chilkat supplies a Google bearer token on each request.
    success = rest.setAuthGoogle(authProvider: gAuth)
ERROR: "=" expected
ERROR: Undefined variable(CHECK_SUCCESS)

    var responseText: String? = rest.fullRequestNoBody(httpVerb: "GET", uriPath: "/storage/v1/b?project=my-project")
ERROR: "=" expected
ERROR: Undefined variable(CHECK_LMS)

    print("\(responseText!)")

}