MYOB: Get OAuth 2.0 Access Token

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var success = false;

//  For more information about the OAuth2, see OAuth 2.0 Authorization Flow

var oauth2 = new CkOAuth2();

//  This should be the port in the localhost callback URL for your app.  
//  The callback URL would look like "http://localhost:3017/" if the port number is 3017.
oauth2.ListenPort = 3017;

oauth2.AuthorizationEndpoint = "https://secure.myob.com/oauth2/account/authorize";
oauth2.TokenEndpoint = "https://secure.myob.com/oauth2/v1/authorize";

//  Replace these with actual values.
oauth2.ClientId = "MYOB_CLIENT_ID";
oauth2.ClientSecret = "MYOB_CLIENT_SECRET";
oauth2.CodeChallenge = false;

oauth2.Scope = "CompanyFile";

//  Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
var url = oauth2.StartAuth();
if (oauth2.LastMethodSuccess !== true) {
    console.log(oauth2.LastErrorText);
    return;
}

console.log("url = " + url);

//  Launch the default browser on the system and navigate to the url.
//  The LaunchBrowser method was added in Chilkat v10.1.2.
success = oauth2.LaunchBrowser(url);
if (success == false) {
    console.log(oauth2.LastErrorText);
    return;
}

//  Wait for the user to approve or deny authorization in the browser.
var numMsWaited = 0;
while ((numMsWaited < 90000) && (oauth2.AuthFlowState < 3)) {
    oauth2.SleepMs(100);
    numMsWaited = numMsWaited+100;
}

//  If the browser does not respond within the specified time, AuthFlowState will be:
//  
//  1: Waiting for Redirect - The OAuth2 background thread is waiting for the browser's redirect request.
//  2: Waiting for Final Response - The thread is awaiting the final access token response.
//  In either case, cancel the background task initiated by StartAuth.

if (oauth2.AuthFlowState < 3) {
    oauth2.Cancel();
    console.log("No response from the browser!");
    return;
}

//  Check AuthFlowState to determine if authorization was granted, denied, or failed:
//  
//  3: Success - OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
//  4: Access Denied - OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
//  5: Failure - OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

if (oauth2.AuthFlowState == 5) {
    console.log("OAuth2 failed to complete.");
    console.log(oauth2.FailureInfo);
    return;
}

if (oauth2.AuthFlowState == 4) {
    console.log("OAuth2 authorization was denied.");
    console.log(oauth2.AccessTokenResponse);
    return;
}

if (oauth2.AuthFlowState !== 3) {
    console.log("Unexpected AuthFlowState:" + oauth2.AuthFlowState);
    return;
}

console.log("OAuth2 authorization granted!");
console.log("Access Token = " + oauth2.AccessToken);

//  Get the full JSON response:
var json = new CkJsonObject();
json.Load(oauth2.AccessTokenResponse);
json.EmitCompact = false;
console.log(json.Emit());

//  The JSON response looks like this:

//  Save the JSON to a file for future requests.
var fac = new CkFileAccess();
fac.WriteEntireTextFile("qa_data/tokens/myob.json",json.Emit(),"utf-8",false);