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Comment on Show HN: I made a site that calculates the market price of items on ebay

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This is a really nice little app. I mean I have only used ebay only a couple of times but this is really nice, and its something I kinda wish I had at the back of my mind when using ebay.

Can you give a little details on how it works? Is it scraped data? etc.

I know this is targeted at a person who wants to sell items on ebay, but I am a buyer and I find this still quite useful. Not sure how up to date the data is but the graphs are an amazing feature! Makes so much sense.

Thanks for the comments!

I actually originally intended this for the buyer! I wanted an iphone for myself, so I scraped the 'completed listings' page on ebay, and converted it to csv to build a histogram in excel.

The data is up to the minute. But I cache the queries in order the save computational resources. Each cache expires within 15 minutes.

Initially the data was scraped, but then I moved to the API which improved performance by 200 - 300%.

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