Getting selling prices from Amazon
We can search on Amazon for books based on their ISBNs. Normally, we will use the default search page on Amazon and enter the ISBN. We can do this manually, but from a program or scraper, we should know the URL to request based on the ISBN. Let us go to the Amazon site and search for this book with the ISBN, as shown in the following screenshot:
The page generated after the search in Amazon will have a URL structure as follows:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=1783289554
If we search based on another ISBN, that is, http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=1847195164 ...
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