Selenium driver.get () does not work under composition function

Question

The call driver.get(url)causes errors when I try to link it with other functions. Here are my little functional methods:

const webdriver = require('selenium-webdriver');
const By        = webdriver.By;
const R         = require('ramda');

// Load a webpage
const loadPage = url => driver => driver.get(url)

// Find an WebElement via some locator
const getElement = locator => driver => driver.findElement(method)

// Locator by name
const byName = name => By.name(name)

// Send a series of input keys to a WebElement
const sendKeys = keys => elem => elem.sendKeys(keys)

The following minimal example loads Google and writes a message to the search bar. It works:

// Navigate to the Google webpage
const loadGoogle = loadPage('http://google.com')

// Retrieve the search form element
const getSearchForm = getElement(byName('q'))

const driver = new webdriver.Builder().forBrowser('chrome').build();
loadGoogle(driver); // NOTE: I have to do this seperately -- cannot do it inside the composition

var app = R.compose(sendKeys('search input'), getSearchForm)
app(driver);

But I want to include loadGooglein the composition of the function - it will be more accurate and more "correct". For instance:

var app = R.compose(sendKeys('search input'), getSearchForm, loadGoogle)
app(driver);

But I get the error driver.findElement is not a function:

/Users/name/Desktop/functional-test.js:9
const getElement = locator => driver => driver.findElement(locator)
                                               ^

    TypeError: driver.findElement is not a function
        at driver (/Users/name/Desktop/functional-test.js:9:48)
        at /Users/name/node_modules/ramda/src/internal/_pipe.js:3:14
        at /Users/name/node_modules/ramda/src/internal/_pipe.js:3:27
        at /Users/name/node_modules/ramda/src/internal/_arity.js:5:45
        at Object.<anonymous> (/Users/name/Desktop/functional-test.js:28:1)
        at Module._compile (module.js:541:32)
        at Object.Module._extensions..js (module.js:550:10)
        at Module.load (module.js:458:32)
        at tryModuleLoad (module.js:417:12)
        at Function.Module._load (module.js:409:3)

I suppose because it loadPagedoes not return an instance of WebDriver , but I am not sure and do not know how to fix it.

Answer 1

const loadPage = url => driver => driver.get(url) 

to

const loadPage = url => driver => { driver.get(url) ; return driver; }

, driver.get(url) , WebDriver. WebDriver ,