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- Nov 15, 2019
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let me give this bit info: A web scraper also called (webcrawler/web spider/web robot) is a program that can be manually executed or via automated script which browses the World Wide Web in a methodical, automated manner.Hello,
Can some tell me the differences between manual web scraping (e.g by using Python) vs software solutions and services for web scraping??
What are the pros and cons of each one and which method do you prefer to use (if you webscrape)?
Thanks
Web scraping via software solutions is usually preferred as it is more efficient and less time-consuming than the manual web scraping method.
Web scraping focuses on retrieving specific information from multiple websites. Then, the application and tools convert the voluminous data into a structured format for the users,so through an API (Application Programming Interface), one can gain access to the data of an application or operating system. Therefore, APIs depend on the owner of the said dataset. The owner can also limit the number of requests that a single user can make or the amount of data they can access.
APIs provide direct access to the type of data you would want.
In web scraping, the user can access the data till it is available on a website. However, access to the data might be either too limited or expensive when it comes to API.
With API, data extraction is usually from only one website (unless it is some aggregator), and through web scraping, data is accessible from multiple websites. Further, API lets you obtain only a specific set of data.
When it comes to web scraping, there is reliance on proxy servers which is not the case with API. The web scraping tool conveniently organizes the extracted data into a structured format. But, on the other hand, a developer will have to organize the data obtained with the help of API programmatically.
The automatic storing of data through the web scraping technique enables the user to download the same later. This function is not possible in an API. Plus, as compared to API, web scraping is much more customizable, complex, and has a set of rules.
Therefore in summary: It depends on what you want and how you want it they all have there preferences