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Selenium Quick Start for Beginners
This video demonstrates how to use the Selenium Quick Start for Beginners template.
import logging
import uvicorn
from fastapi import FastAPI
from fastapi.responses import HTMLResponse
from fastapi.templating import Jinja2Templates
from selenium_utils import SeleniumUtility
URL_TO_FETCH = "https://www.example.com"
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
app = FastAPI()
templates = Jinja2Templates(directory="templates")
@app.get("/", response_class=HTMLResponse)
async def page_information():
selenium_util = SeleniumUtility()
title = (
selenium_util.get_page_title(URL_TO_FETCH) or "Failed to retrieve page title"
)
return templates.TemplateResponse("page_information.html", {"page_title": title})Frequently Asked Questions
What are some common business applications for this Selenium App template?
The Selenium App template is versatile and can be used for various business applications, including: - Web scraping and data extraction from dynamic websites - Automated testing of web applications - Monitoring competitor websites for price changes or content updates - Automating repetitive tasks on web interfaces - Generating reports by navigating through web-based dashboards
How can this Selenium App template improve efficiency in quality assurance processes?
This template can significantly enhance QA processes by: - Automating regression testing, reducing manual effort and time - Enabling consistent and repeatable test execution across different browsers - Facilitating continuous integration and continuous deployment (CI/CD) pipelines - Allowing for parallel test execution, increasing test coverage in less time - Providing detailed logs and reports for easier debugging and issue tracking
What industries can benefit most from using this Selenium App template?
While the Selenium App template is useful across various sectors, some industries that can benefit greatly include: - E-commerce: for price monitoring, inventory checking, and competitor analysis - Finance: for automated trading, market data collection, and compliance checks - Travel: for fare comparison, availability checks, and booking process automation - Media: for content aggregation, social media monitoring, and audience engagement tracking - Healthcare: for patient portal testing, medical record system automation, and regulatory compliance checks
How can I extend the `SeleniumUtility` class to perform more complex actions?
You can add new methods to the SeleniumUtility class to perform more complex actions. For example, to click a button and wait for a new page to load:
```python from selenium.webdriver.common.by import By from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC
class SeleniumUtility: # ... existing code ...
def click_and_wait(self, selector, timeout=10):
element = WebDriverWait(self.driver, timeout).until(
EC.element_to_be_clickable((By.CSS_SELECTOR, selector))
)
element.click()
WebDriverWait(self.driver, timeout).until(
EC.staleness_of(element)
)
```
This method can be used in your Selenium App to interact with web pages more dynamically.
How can I modify the Selenium App template to run tests in parallel?
To run tests in parallel using this template, you can leverage Python's multiprocessing module. Here's an example of how you might modify the main.py file:
```python import multiprocessing from selenium_utils import SeleniumUtility
def run_test(url): selenium_util = SeleniumUtility() title = selenium_util.get_page_title(url) return url, title
if name == "main": urls = ["https://www.example1.com", "https://www.example2.com", "https://www.example3.com"]
with multiprocessing.Pool(processes=3) as pool:
results = pool.map(run_test, urls)
for url, title in results:
print(f"URL: {url}, Title: {title}")
```
This modification allows the Selenium App to test multiple URLs concurrently, improving overall execution speed.
Created: | Last Updated:
Introduction to the Selenium App Template
Welcome to the step-by-step guide on how to use the Selenium App template on Lazy. This template is designed for builders who need to automate web interactions such as end-to-end tests, functional tests, or web crawling with sophisticated steps like clicks and element interactions. By the end of this guide, you'll be able to deploy an app that uses Selenium to fetch and display the title of a web page.
Getting Started
To begin using this template, simply click on "Start with this Template" on the Lazy platform. This will pre-populate the code in the Lazy Builder interface, so you won't need to copy, paste, or delete any code.
Test: Deploying the App
Once you've started with the template, press the "Test" button. This will initiate the deployment of your app and launch the Lazy CLI. The deployment process is handled entirely by Lazy, so you don't need to worry about installing libraries or setting up your environment.
Using the App
After the app is deployed, Lazy will provide you with a dedicated server link. You can use this link to interact with your Selenium App. If you're using FastAPI, Lazy will also provide a docs link, which you can use to explore the API endpoints and their functionalities.
The main endpoint of your app will be the root ("/"), which, when accessed, will use Selenium to fetch the title of the specified URL and display it in a simple HTML page. When you visit the server link provided by Lazy, you should see the title of the web page specified in the code displayed on your screen.
Integrating the App
If you wish to integrate this app into another service or frontend, you may need to add the app's server link provided by Lazy to the external tool. For example, if you're creating a dashboard that displays information fetched by the Selenium App, you would insert the server link into your dashboard's configuration to display the fetched data.
Remember, all the necessary code and deployment configurations are already set up for you in the Lazy template. Your main focus will be on using the app and integrating it with other tools or services as needed.
If you have any questions or need further assistance, the Lazy customer support team is here to help you make the most out of your app-building experience.
Template Benefits
-
Automated Web Testing: This template provides a robust foundation for creating automated web tests, enabling businesses to efficiently validate website functionality, performance, and user experience across different browsers and devices.
-
Web Scraping and Data Extraction: The integration of Selenium allows for sophisticated web scraping capabilities, enabling businesses to extract valuable data from complex websites that require interaction, such as clicking buttons or navigating through multiple pages.
-
Headless Browser Automation: The template's use of headless Chrome options facilitates server-side web automation, making it ideal for running automated tasks in cloud environments or on servers without graphical interfaces.
-
API Development with Web Interaction: By combining FastAPI with Selenium, this template enables the creation of APIs that can interact with web pages, opening up possibilities for integrating web-based workflows into larger systems or applications.
-
Performance and Load Testing: The template can be extended to create tools for performance and load testing of web applications, allowing businesses to simulate multiple users interacting with their websites and measure response times and system stability under various conditions.
Technologies
Enhance Selenium Automation with Lazy AI: API Testing, Scraping and More
