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I intend to develop a software that displays product information. I wonder if the large Commerce used here in Brazil (American, Walmart, submarine, extra) make available some API to search the information of your products.
Another question. Would it be wrong for me to develop a robot (web Crawler, Spider, etc) to seek this information? For example, a software that accesses the Americana website, enters a particular product, takes the information I need and stores it in my database? Let’s say when I go to display the information I got from Americana, I link to their website containing the product. This might even be good for them.
Alberto welcome to Stackoverflow! Consider changing your question to make it clearer. What do you want to know? It is not wrong to consume an API as long as you are allowed to consume it. It is also worth remembering that some Apis have call limits and some restrictions with the use of the data made available by them.
– Gabriel Brito
Nothing prevents you from developing a robot (web Rawler, technically speaking), after all it would be the same as a person accessing the site in its public part, even if search engines do to index content. Currently there is a Brazilian company that makes millions of dollars making on demand scanning the main stores for products and their prices so the store that hired the search identifies whether it needs to lower its prices or whether it has room to go uplos, in a much more practical way.
– airton