PhoneGap jQuery Mobile

function openLoginWindow() {
    // Uses the inAppBrowser phoneGap plugin to open the Actionstep login window inside the app
    var redirectUri = 'http://YOUR_URI.com';
    var clientId = 'INSERT YOUR CLIENT ID HERE';
    var apiCodeUrl = encodeURI('https://fe-api.actionsteplabs.com/api/oauth/authorize?client_id=' + clientId + '&redirect_uri=' + redirectUri + '&response_type=code&scope=actions');
    var loginWindow = window.open(apiCodeUrl, '_blank', 'location=yes');  // inAppBrowser will open the window 
    
    loginWindow.addEventListener('loadstart', function(event) {  
        var codeStartPos = -1;	
        var authCode = '';
        var accessToken = '';
        var apiTokenUri = 'https://fe-api.actionsteplabs.com/api/oauth/token';
        var resultObj = {};
        var tokenExpiresAt = new Date();
        
        // Let Actionstep run through the pages until we hit the redirect page
        if (event.url.indexOf(redirectUri) == 0) {
            // Get the "code" parameter from the url of the redirect page
            if ((codeStartPos = event.url.indexOf("code=")) > 0) {
                codeStartPos += 5; // Get past the 'code=' string
                authCode = event.url.substr(codeStartPos);
                loginWindow.close();	
                
                jQuery.ajax({
                    type: "POST",
                    url: apiTokenUri,
                    data: {code: authCode, client_id: clientId, grant_type: 'authorization_code', redirect_uri: redirectUri}
                })
                .done(function(status) {
                    resultObj = jQuery.parseJSON(status);
                    // Save the API session data
                    localStorage.api_access_token = resultObj.access_token;
                    localStorage.api_refresh_token = resultObj.refresh_token;
                    tokenExpiresAt.setSeconds(tokenExpiresAt.getSeconds() + resultObj.expires_in);  // Add the expiry time to now
                    localStorage.api_token_expires_at = tokenExpiresAt.toString();
                    localStorage.api_token_type = resultObj.token_type;
                    localStorage.api_api_endpoint = resultObj.api_endpoint;
                })
                .fail(function(error) {
                    alert(JSON.stringify(error));
                });
            }
            else {  // Could not find the code paramater
                loginWindow.close();	
                alert("Failed to get an auth code from Actionstep. Please try again.");
            }
        }
    });
}

function refreshToken() {
    var redirectUri = 'http://YOUR_URI.com';
    var clientId = 'YOUR CLIENT ID';
    var apiTokenUri = 'https://fe-api.actionsteplabs.com/api/oauth/token';
    var resultObj = {};
    var tokenExpiresAt = new Date();
    
    if (localStorage.api_refresh_token == false) {
        window.location.href = "#page_login";
        return;
    }
    jQuery.ajax({
        type: "POST",
        url: apiTokenUri,
        data: {refresh_token: localStorage.api_refresh_token, client_id: clientId, grant_type: 'refresh_token', redirect_uri: redirectUri}
    })
    .done(function(status) {
        resultObj = jQuery.parseJSON(status);
        // Save the API session data
        localStorage.api_access_token = resultObj.access_token;
        localStorage.api_refresh_token = resultObj.refresh_token;
        tokenExpiresAt.setSeconds(tokenExpiresAt.getSeconds() + resultObj.expires_in);  // Add the expiry time to now
        localStorage.api_token_expires_at = tokenExpiresAt.toString();
        localStorage.api_token_type = resultObj.token_type;
        localStorage.api_api_endpoint = resultObj.api_endpoint;
    })
    .fail(function(error) {
        alert(JSON.stringify(error));
    });
}

jQuery(document).on("pageshow", "#page_actions", function() {
    jQuery.ajax({
        type: "GET",
        url: 'https://fe-api.actionsteplabs.com/api/rest/actions',
        headers: {'Content-Type': 'application/vnd.api+json', 'Accept': 'application/vnd.api+json', 'Authorization': 'Bearer ' + localStorage.api_access_token}
    })
    .done(function(result) {
        resultObj = jQuery.parseJSON(result);
        alert(resultObj);
    })
    .fail(function(errmsg) {
        alert(JSON.stringify(errmsg));
    });
});