(JavaScript) Hotmail Refresh Access Token (also for Live.com, Outlook.com)

See more OAuth2 Examples

See: How Long can an OAuth2 Access Token be Refreshed?

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

// It is assumed we previously obtained an OAuth2 access token.

// Note: Refreshing an access token does not require user-interaction.  
// Only the act of getting the initial access token requires interactive authorization from the Hotmail account owner 
// (i.e. a browser is displayed and the Hotmail account owner authorizes access by the app).

// Once you have the initial access token, it can be refreshed for a long time.
// A typical strategy is to write your application to automatically refresh the access token 
// when authentication fails, and then retry the operation with the new access token.

var jsonToken = new CkJsonObject();
success = jsonToken.LoadFile("qa_data/tokens/hotmail.json");
if (success !== true) {
    console.log("Failed to load office365.json");
    return;
}

// The access token JSON looks like this:

// {
//   "token_type": "Bearer",
//   "scope": "https://outlook.office.com/SMTP.Send https://outlook.office.com/IMAP.AccessAsUser.All https://outlook.office.com/POP.AccessAsUser.All",
//   "expires_in": 3600,
//   "ext_expires_in": 3600,
//   "access_token": "EwBoA+ ... 7pOYcWr5pFwQgI=",
//   "refresh_token": "M.C546_BL2.0.U.-CkW ... g5CKSlDBQ$$",
//   "id_token": "eyJ0e ... 2iiu5iqBK9n7s3A"
// }

var oauth2 = new CkOAuth2();

// See Microsoft OAuth2 Authorization Endpoint
oauth2.TokenEndpoint = "https://login.microsoftonline.com/common/oauth2/v2.0/token";

// Replace this with your actual App Registration's Application (client) ID.
oauth2.ClientId = "CLIENT_ID";

// Get the "refresh_token"
oauth2.RefreshToken = jsonToken.StringOf("refresh_token");

// Send the HTTP POST to refresh the access token..
success = oauth2.RefreshAccessToken();
if (success !== true) {
    console.log(oauth2.LastErrorText);
    return;
}

console.log(oauth2.LastErrorText);

console.log("New access token: " + oauth2.AccessToken);
console.log("New refresh token: " + oauth2.RefreshToken);

// Update the JSON with the new tokens.
jsonToken.UpdateString("access_token",oauth2.AccessToken);
jsonToken.UpdateString("refresh_token",oauth2.RefreshToken);

// Save the new JSON access token response to a file.
var sbJson = new CkStringBuilder();
jsonToken.EmitCompact = false;
jsonToken.EmitSb(sbJson);
sbJson.WriteFile("qa_data/tokens/hotmail.json","utf-8",false);

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