rails parser json

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Rails and JSON: a beginner's question

up vote 1 down vote favorite 2	I'm looking for a simple way to parse JSON, extract a value and write it into a db in Rails. Explicitly what I'm looking for is a way to extract a shortUrl from the JSON returned from the bit.ly API: { "errorCode": 0, "errorMessage": "", "results": { "http://www.foo.com": { "hash": "e5TEd", "shortKeywordUrl": "", "shortUrl": "http://bit.ly/1a0p8G", "userHash": "1a0p8G" } }, "statusCode": "OK" } And then take that shortUrl and write it into an ActiveRecord object associated with the long URL. This is one of those things that I can think through entirely in concept and when I sit down to execute I realize I've got a lot to learn. Thoughts? Help? Any and all would be much appreciated. ruby-on-rails  json  bit.ly link | flag edited  Dec 3 '09 at 21:12 chollida 2,088 6 17 asked  Dec 1 '09 at 14:58 Dan Sinker 59 5 40% accept rate
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Parsing JSON in Rails is quite straightforward: parsed_json = ActiveSupport::JSON.decode(your_json_string) Let's suppose, the object you want to associate the shortUrl with is a Site object, which has two attributes - short_url and long_url. Than, to get the shortUrl and associate it with the appropriate Site object, you can do something like: parsed_json["results"].each do |longUrl, convertedUrl|   site = Site.find_by_long_url(longUrl)   site.short_url = convertedUrl["shortUrl"]   site.save end link | flag