Improve webpage scrapping solution
$30-250 USD
Betalt ved levering
I have a Java program to scrap information from a website. The architecture of the solution involves: 1) using Java Selenium to send requests to the webpage via Chrome Webdriver to trigger authentication and authenticated requests; 2) routing the requests from Chrome (headless) to Java BrowserMobProxy to capture three HTTP headers (Authorization, X-CSRF-TOKEN, and Cookie) and one query string; and 3) use these 4 elements in HTTPs requests from Java directly to the webpage (i.e. without Selenium, Chrome, and BrowserMobProxy involved) to retrieve the desired information.
This program does the basic functionality of extracting the information but has a few problems:
It depends on an external non-Java component: Chrome WebDriver
It depends on Java Selenium and Java BrowserMobProxy, two dependencies that I would like to remove
It is not optimized (too much refresh and too long sleep periods) relatively to the limit upon which the Webpage (Cloudfare) starts responding 429 errors. Thus, the retrieval of the information is taking much more time than needed.
Deliverables
You will get the current program Java code and you will need to solve the problems above. To do so, you will need to:
A. Find out how to authenticate and refresh the 3 headers and the query string without depending on Selenium, Chrome Webdriver, and BrowserMobProxy. As most of this data is likely generated in JavaScript, you will need knowledge about JavaScript and how to execute JavaScript from within Java or convert the JavaScript code to Java (preferable solution).
B. You will need to identify the limit upon which the Webpage (behind Cloudfare) starts responding 429 errors. You will need to tune the refresh frequency of the headers and sleep periods to the limit identified. You will need to demonstrate the benefits of your changes by extracting the information currently extracted by the program and measuring how long it takes.
Note: you will need to create your own login/password in the webpage. No additional requirements exist to register.
Projekt ID: #26781086
Om projektet
11 freelancere byder i gennemsnit $171 timen for dette job
Hi, Greetings! ✅checked your project details: Improve webpage scrapping solution ✅Completed Time: In project deadline We have worked on 600 + Projects. I have 6 + years of the experience in same kind of projects Flere
NOTE : I HAVE EXPERTISE IN JAVA AND JAVASCRIPT. I CAN COMPLETE THIS TASK IN QUICK TIME. With respect to this project I would like to present myself as a candidate for your consideration. I have more than 12 years of I Flere
Greetings Sir, I am Muhammad Faisal and i am a professional Java developer having almost 4 years of experience and we provide you quality work within your time and budget so, lets get started ? Thanks
Hi, I am an expert developer who has done extensive web scrapping work only with Java. I can remove all dependencies on Chrome and remove any sort of sleeps. The way i'd do it is to only wait until the DOM is rendered Flere
Hello,sir.. How are you?... I am very interested in your project. I have rich experiences in scraping website and processing data within selenium package. Have experiences in scrapers used chrome extension and proxy se Flere
i have optimized a lot of distributed crawling projects and Selenium based crawlers ... please connect me over chat and share me your code. i will first identify all the pin points and alternatives for your authentica Flere
