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3 Golang Tips for Scraping Like a Pro | Guest Blog News
The increasing importance of web scraping for businesses and personal use points to the need to have a web scraper. You can either purchase such a tool from a reliable service provider. Alternatively, you can create one from scratch using programming languages and frameworks best suited for web scraping. Python, PHP, NodeJS, Ruby, and Golang are some examples of such languages. This article will explore the Golang web scraper, detailing 3 Golang tips for web scraping like a professional. Let’s start.
What is Web Scraping?
Web scraping refers to the practice of using bots, known as web scrapers, to extract publicly available data from websites. It offers numerous benefits to both businesses and individuals. For instance, companies can collect publicly available data on the number of competitors in a market, their pricing strategies, and products in the market. By analyzing this data, companies can develop better go-to-market strategies (if they are new to the market) or competitive prices for their products and services. On the other hand, people can use web scraping to gather real-time updates from job or news aggregation sites.
As stated, businesses and people can create web scrapers using several programming languages, including Golang.
What is Golang?
Golang or Go is a general-purpose compiled programming language invented by Google in 2007 and released to the public in 2012. It is based on the C programming language. Golang boasts numerous functionality that has influenced its popularity within the developer community.
Go is renowned for the following features:
Memory safety
Garbage collection
Simplicity
Speed
Run-time efficiency
Built-in concurrency
Multiprocessing and high-performance networking capabilities
High usability
A comprehensive suite of tools and frameworks
Developers have capitalized on these features to extend Golang’s usability beyond what its inventors had initially envisioned. Google’s developers had created Go for use in networking and infrastructure. Currently, however, Golang is used in game development, creating back-end applications (Application Programming Interfaces or APIs), automation of DevOps and site reliability functions, web scraping, and more.
Web Scraping: Building a Golang Web Scraper
With Golang, you can extract data from websites like a pro. This is because there are different web scraping frameworks containing prewritten code tools. These frameworks ensure that you do not have to write the code from scratch. This, coupled with the fact that the Go language is easy to learn, fast, simplistic, and has built-in concurrency (which enables it to undertake multiple tasks simultaneously), makes Golang web scrapers extremely useful.
What should you look out for when creating a Golang web scraper? Here are 3 Golang tips that will help you scrape like a pro:
Pick the right frameworks
Use multiple collectors
Ensure your callbacks are ordered correctly
Right Framework
There are numerous Golang web scraping frameworks. These include Colly, soup (not to be confused with BeautifulSoup Python library), Ferret, Hakrawler, and Gocrawl. Colly is the most popular of the listed frameworks. Its popularity implies that multiple tutorials on using it are already available, either in written or video formats. For this reason, Colly offers convenience and ease of use.
At the same time, Colly has numerous features that make it the ideal framework for creating a Golang web scraper. These features are:
Caching capabilities;
Support for request delays and the ability to limit the maximum number of concurrent tasks per domain – this is particularly useful as it helps mimic human behavior, preventing the website from blocking the requests on the grounds of suspicious activities;
It offers Robots.txt support, enabling the Golang web scraper to avoid restricted web pages;
Colly enables parallel/async/sync scraping;
It is fast;
This framework automatically handles sessions and cookies.
Use Multiple Collectors
A Collector object is the main entity in the Colly framework. It oversees communication within a network. It also ensures that the attached callback functions are executed while the collector object runs.
It is noteworthy that the collector object limits the scope of a web scraping job. To circumvent this problem and ensure that the Golang web scraper can undertake large-scale web scraping, you can use multiple Collector objects.
Order the Callbacks Correctly
A callback is a function attached to the Collector object that controls data extraction from websites. For successful data extraction, the callback functions should be ordered such that the procedure mimics how a web-based application would ordinarily send requests and receive responses. The various callback functions include:
Onrequest;
OnError;
OnResponseHeaders;
OnResponse;
OnHTML (uses a CSS selector to extract text from different HTML elements);
OnXML;
OnScraped.
Notably, the OnHTML function can also be used to create a CSV file on which the scraped data can then be written.
Going through the Go Colly documentation is also an essential step that guarantees success.
Conclusion
Golang is a fast programming language whose numerous features make it ideal for applications such as creating web scrapers. To build a Golang web scraper, choose the proper framework, use Collector objects, and order the callback functions correctly. If you’re searching for an in-depth tutorial on building a Golang web scraper, Oxylabs wrote a blog post that will help you.
Press Release
Characteristics That Set Mega888 Apart From Other Online Casinos
The world of online gaming has never been the same since the launch of Mega888. It may be argued that the casino is the greatest online casino for all of your gambling needs because it has accomplished so much in such a short period of time.
There is a list of other online casinos, however the majority of them cannot be compared to Mega888. So what precisely sets Mega888 apart from other online casinos? We’ve put together a collection of justifications to aid you comprehend Mega888’s virtues.
The casino provides patrons with a wealth of amenities. So, these are the characteristics that set Mega888 apart from other online casinos in the gambling sector.
Quality of the Online Casino Overall
Prior to going any further, it is important to note the casino’s general level of excellence. One of the main reasons Mega888 is trustworthy is because it never takes advantage of or scams its customers.
The casino will take steps to protect every player from fraud of any kind, making Mega888 a trustworthy and respectable online casino. The Mega888 team is always developing new features to improve the playing experience.
The high-quality games that Mega888 has to offer are among its best features. The online casino’s selection of games goes well beyond simply having outstanding gameplay. The online casino is top-notch because the games have incredible graphics and the casinos provide outstanding customer service to all of their customers.
Mega888 Has Several Different Games.
The range of games available at Mega888 is one of the premium attractions. Mega888 provides an incredible selection of games, all of which are of the highest calibre. The online casino offers a wide variety of games, including shooting, fishing, and arcade games.
Additionally, if you still think that this is insufficient, players can choose from a number of table games. The developers at Mega888 are constantly working to provide fresh material for the players at the online casino, so whenever a player enters the site, they will find new games.
To keep the platform updated with new games each month, the online platform occasionally undergoes maintenance. Consequently, each time you play at the online casino, you will have a distinctive gaming experience. Players can currently choose from hundreds of slot games, numerous live table games, and much more.
Mega888’s security is impenetrable.
The security of the Mega888 is one of its key characteristics. All gamers at Mega888 are helped by the security system’s design, which protects them from danger or attacks from outside sources. However, this wouldn’t have been possible if Mega888 hadn’t given the security team a sizable sum of money from their annual budget.
This indicates that the online casino places a high priority on security and won’t compromise it for anything. There is no history of fraud or account hacking at the online casino’s security. It demonstrates that the online casino ensures the confidentiality of all player financial and personal information right from the start.
You won’t ever need to be concerned about a hack or scam involving your account. The online casino has a good reputation, and Mega888 has received approval from numerous organisations as a legitimate online gaming platform. Additionally, numerous licencing companies have endorsed the casino, demonstrating that it is a secure and safe location to gamble.
The two-factor authentication barrier that Mega888 has for players between the email and the Mega888 Apk is its best security feature. This means that it would be nearly impossible for any outside attacker to access a player’s account without going through two distinct layers of security.
Additionally, if a hacker tries to steal money from a transaction, the online casino’s management team will immediately transfer the money to the legitimate owner after learning about the behaviour.
The security system’s usage of a 128-bit encryption technique is another observable aspect. The casino maintains sensitive data using this technique, including user names, passwords for Mega888 accounts, and financial information.
The online casino’s high level of encryption prevents many hackers from accessing any accounts. Last but not least, the online casino has a firewall that prevents hackers from accessing the site.
Services for Instant Cash Out Using Mega888
Every online casino has its unique cash-out options, and given that these services are available online, it is crucial for the platform to guarantee that the casino offerings are reliable and prompt. Mega888 ensures that their services are simple to use.
All of Mega888’s services to its players appear to be seamless. All that is required of players is consistency and a willingness to take financial risks when playing at an online casino. The casino has remarkable and simple processes in place so that players may withdraw their money with little hassle.
You must get in touch with a dealer in order to collect your money. You have a number of options for doing that, some of which include WeChat, real-time chat, phone calls, or WhatsApp. Make sure that the choice you choose is practical for you since the dealers Mega888 offers are knowledgeable, competent, and professional.
Every request a player submits receives a response within 24 hours, and any questions they may have will be addressed as soon as possible. Players can retrieve their money in the quickest and safest possible manner in this fashion.
Last Words
Overall, Mega888 might have a lot of characteristics that make it a casino you definitely want to play at. However, before you take the major step of gambling with your own money, it’s crucial to understand more about the games and their rules.
Press Release
PHP source code was given backdoors thanks to a compromise of the Git server.
The official PHP Git repository was breached in the most recent software supply chain attack, and the code base was modified.
Yesterday, two malicious commits were uploaded to the PHP team’s git.php.net server, which hosts the php-src Git repository.
Threat actors had verified these commits as if Rasmus Lerdorf and Nikita Popov, two well-known PHP developers and maintainers, had made them.
PHP Git server has an RCE backdoor installed.
Yesterday, two malicious contributions were uploaded to the official PHP Git repository in an effort to corrupt the PHP code base.
The event is concerning because 79% of websites on the Internet still use PHP as their server-side programming language.
The attackers released a mystery update upstream called “repair typo” in the malicious commits [1, 2] that BleepingComputer saw under the guise of a little typographical patch.
Looking closer at the newly added line 370, where the zend eval string function is used, reveals that the code in fact creates a backdoor for quickly achieving Remote Code Execution (RCE) on a website using this hacked version of PHP.
Developer Jake Birchall for PHP responded to Michael Voek, who had discovered the error originally, with the explanation, “This line executes PHP code from within the useragent HTTP header, if the string starts with ‘zerodium’.”
Nikita Popov, a PHP maintainer, explained the following to us via email:
“During a regular post-commit code review a few hours after the first commit, it was discovered. The modifications were immediately undone because they were blatantly malicious “According to Popov, BleepingComputer.
The malicious commit was also done under Rasmus Lerdorf’s identity, the person who created PHP.
But that should come as no surprise because with source code version control systems like Git, it is possible to sign off a change locally under a different identity [1, 2] and then upload the spoof commit to the remote Git server, where it appears to have been signed off by the person listed on it.
According to PHP maintainers, this malicious activity originated from the compromised git.php.net server rather than from the compromise of an individual’s Git account, despite the fact that a thorough investigation of the incident is still ongoing.
The official PHP codebase has been moved to GitHub.
Following this event, the PHP maintainers have chosen to move the official PHP source code repository to GitHub as a precaution.
We’ve made the decision to stop running the git.php.net server even though our investigation is still ongoing since we believe that keeping our own git infrastructure is an unnecessary security risk.
Popov stated that the GitHub repositories, which were previously merely mirrors, “would become canonical.”
After this modification, Popov demands that any future code updates be uploaded directly to GitHub rather than the git.php.net site.
Anyone who wants to contribute to the PHP project must now join the PHP organisation on GitHub.
The same security alert includes advice for doing that.
You would need to have two-factor authentication (2FA) set on your GitHub account in order to join the organisation.
Beyond the two commits that were mentioned, “We’re investigating the repositories for any corruption,” says Popov.
In order to learn the full scope of this attack and whether any code was transmitted downstream before the fraudulent commits were discovered, BleepingComputer contacted Popov and the PHP security team.
Although it might have been cloned or forked in the interim, no tags or release artefacts reflect the changes.
Popov added to BleepingComputer, “The changes were in the development branch for PHP 8.1, which is scheduled for release at the end of the year.
The PHP team has confirmed to BleepingComputer that they want to decommission their git server ultimately and switch to GitHub permanently in the coming days.
Press Release
ADOBE ENDS SUPPORT FOR FLASH TODAY AND WILL START BLOCKING FLASH CONTENT FROM JANUARY 12; MAJOR BROWSERS WILL BLOCK FLASH CONTENT FROM JAN. 1 (T.C. SOTTEK/THE VERGE)
Adobe ends support for Flash today and will start blocking Flash content from January 12; major browsers will block Flash content from Jan. 1 — It’s the end of the line — Adobe scheduled its famous Flash software to end on December 31st, 2020, and today is the day.
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