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

http://www.getmarketprice.com

by locksley • 14 years ago

15 11 14 years ago

locksley3• 14 years ago

I made this in rails over a couple of weekends after learning how to code late last year. The inspiration came from wanting to buy an iPhone 5 from ebay but not knowing what a fair price should be. After a writing a script to calculate this for myself, I thought it could be useful for others too and abstracted it into its current incarnation.

Any feedback would be fantastic, especially on UX!

Pezmc• 14 years ago

Perhaps implement a cache for the results? It already seems to be being hit quite hard!

byoung2• 14 years ago

I keep getting an error:

Application Error

An error occurred in the application and your page could not be served. Please try again in a few moments.

If you are the application owner, check your logs for details.

GotAnyMegadeth• 14 years ago

same here

locksley3• 14 years ago

Sorry! It should be ok now.

pavel_lishin• 14 years ago

Now it's throwing a 500 error that says: "Sorry, we stuffed up. Please try again."

http://i.imgur.com/zhNDB.png

bdfh42• 14 years ago

Sadly just reporting an error when I tried.

klous2• 14 years ago

Can you dive more into the technical details of this, eg. are you using the ebay API or are you scraping the data?

locksley3• 14 years ago

Yeah sure, it's a scraper. The histogram is then built out of the 200 results retrieved from 'completed listings', minus the ones that weren't sold. The X/Y scatter plot is built from the 200 upcoming results, intended as a way to find good bargains after you know the median/mean price.

klous2• 14 years ago

And the scraper is using a "logged in" ebay account, correct? Because I believe to view completed listings you need to be logged in.

toki5• 14 years ago

/results?utf8=✓

This made me laugh aloud.

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

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