(Node.js) GeoOp Exchange Refresh Token for New Access Token

Demonstrates how to use the /oauth2/token endpoint to exchange it for a new access token once the current access token has expired.

Note: This example requires Chilkat v9.5.0.65 or greater.

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

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    // This example also assumes that OAuth2 access and refresh tokens were previously fetched.
    // and saved in a JSON file.  

    // First get our previously obtained refresh token.
    // { .... "refresh_token":"e6dqdG....mzjpT04w==", .... }
    var jsonToken = new chilkat.JsonObject();
    var success = jsonToken.LoadFile("qa_data/tokens/geoop.json");

    var rest = new chilkat.Rest();

    // Connect to GeoOp...
    var bAutoReconnect = true;
    success = rest.Connect("login.geoop.com",443,true,bAutoReconnect);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // Set the X-Version header.
    rest.AddHeader("X-Version","1.0");

    // Provide the required form params to get the new access token
    console.log("refresh_token = " + jsonToken.StringOf("refresh_token"));
    rest.AddQueryParam("refresh_token",jsonToken.StringOf("refresh_token"));
    rest.AddQueryParam("grant_type","refresh_token");
    rest.AddQueryParam("client_id","GEOOP-CLIENT-ID");
    rest.AddQueryParam("client_secret","GEOOP-CLIENT-SECRET");

    var responseBody = rest.FullRequestFormUrlEncoded("POST","/oauth2/token");
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // If the response status code did not indicate success, then see what happened..
    if (rest.ResponseStatusCode !== 200) {
        console.log("Request Header: ");
        console.log(rest.LastRequestHeader);
        console.log("----");
        console.log("Response StatusCode = " + rest.ResponseStatusCode);
        console.log("Response StatusLine: " + rest.ResponseStatusText);
        console.log("Response Header:");
        console.log(rest.ResponseHeader);
        console.log(responseBody);
        return;
    }

    var json = new chilkat.JsonObject();
    json.EmitCompact = false;
    json.Load(responseBody);

    // Show the full JSON response.  It should contain the new access token...
    console.log(json.Emit());

}

chilkatExample();