Node.js

Google Drive Refresh Access Token

See more Google Drive Examples

Demonstrates how to automatically refresh the access token when it expires. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    success = true;

    // This example uses a previously obtained access token having permission for the 
    // Google Drive scope.

    // The access token (and refresh token) was previously saved to a JSON file with this format:
    // See Get Google Drive OAuth2 Access Token

    // {
    //   "access_token": "ya29.Gls-BsdxTWuenChv ... yzVIrXikkLxu5T6dy4I6GjADFardoz4Lruw",
    //   "expires_in": 3600,
    //   "refresh_token": "1/tMBJ ... 27D-Hk6rpQYBA",
    //   "scope": "https://www.googleapis.com/auth/drive",
    //   "token_type": "Bearer"
    // }

    var json = new chilkat.JsonObject();
    var tokenFilePath = "qa_data/tokens/googleDrive.json";
    json.LoadFile(tokenFilePath);

    var oauth2 = new chilkat.OAuth2();
    oauth2.AccessToken = json.StringOf("access_token");
    oauth2.RefreshToken = json.StringOf("refresh_token");

    oauth2.AuthorizationEndpoint = "https://accounts.google.com/o/oauth2/v2/auth";
    oauth2.TokenEndpoint = "https://www.googleapis.com/oauth2/v4/token";

    //  Replace these with actual values.
    oauth2.ClientId = "GOOGLE-CLIENT-ID";
    oauth2.ClientSecret = "GOOGLE-CLIENT-SECRET";
    oauth2.Scope = "https://www.googleapis.com/auth/drive";

    // Use OAuth2 to refresh the access token.
    success = oauth2.RefreshAccessToken();
    if (success !== true) {
        console.log(oauth2.LastErrorText);
        return;
    }

    console.log(oauth2.AccessTokenResponse);

    // Save the new access token to our JSON file (so we can refresh it again when needed).
    json.UpdateString("access_token",oauth2.AccessToken);

    var fac = new chilkat.FileAccess();
    fac.WriteEntireTextFile(tokenFilePath,json.Emit(),"utf-8",false);

    console.log("Access Token Refreshed!");

}

chilkatExample();