(Node.js) Refresh Schwab OAuth2 Access Token

See more Schwab Examples

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var success = false;

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

    // See Get Schwab OAuth2 Access Token 
    // for sample code showing how to obtain a Schwab access token for desktop apps.

    // This example assumes we previously obtained an OAuth2 access token for Schwab.

    var jsonToken = new chilkat.JsonObject();
    success = jsonToken.LoadFile("qa_data/tokens/schwab-access-token.json");
    if (success !== true) {
        console.log("Failed to load schwab-access-token.json");
        return;
    }

    // The access token JSON looks something like this:

    // {
    //   "expires_in": 3600,
    //   "x_refresh_token_expires_in": 8726400,
    //   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
    //   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
    //   "token_type": "bearer"
    // }

    var oauth2 = new chilkat.OAuth2();

    oauth2.TokenEndpoint = "https://api.schwabapi.com/v1/oauth/token";

    // Replace these with actual values.
    oauth2.ClientId = "APP_KEY";
    oauth2.ClientSecret = "APP_SECRET";
    oauth2.UseBasicAuth = true;

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

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

    // The response contains a new access token, but we must keep
    // our existing refresh token for when we need to refresh again in the future.
    jsonToken.UpdateString("access_token",oauth2.AccessToken);

    // Save the new JSON access token response to a file.
    // The access + refresh tokens contained in this JSON will be needed for the next refresh.
    var sbJson = new chilkat.StringBuilder();
    jsonToken.EmitCompact = false;

    jsonToken.EmitSb(sbJson);
    sbJson.WriteFile("qa_data/tokens/schwab-access-token.json","utf-8",false);

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

}

chilkatExample();