Issue in parsing Json response in ruby

Question

  @response = Typhoeus::Request.get(FOUR_SQUARE_API_SERVER_ADDRESS+'search?ll=' + current_user.altitude.to_s + "&query="+ params[:query] + FOUR_SQUARE_API_ACESS_CODE)
   @venues = ActiveSupport::JSON.decode(@response.body)
   @venues['response']['groups'][0]['items'].each do |venue|
     venue['name']  //working
      venue['name']['location'][0]['address']  //issues
     venue['name']['categories'][0]['id']  //issues
   end

Please check inline comments for issues.

enter image description here

@rubyprince check the code..venue['name']['location'][0]['address'] //issues venue['name']['categories'][0]['id'] //issues are not working — Radio TukTuk
– Radio TukTuk, Commented Jun 6, 2011 at 16:09
Maybe you should include the actual JSON (preferably nicely formatted for easy reading) rather than a screenshot. — mu is too short
– mu is too short, Commented Jun 6, 2011 at 16:11
@mu really.. i.sstatic.net/b58XS.png is this not clear enough..If i try to copy json.. alignment issues. Its foursquare venue api response. — Radio TukTuk
– Radio TukTuk, Commented Jun 6, 2011 at 16:13
It is difficult to parse the structure of text from a screenshot, it would have been easier if you pasted the JSON into a text editor, reformatted it to look similar to the screen shot, and then pasted that in your question as a code block. In any case, I think I have found the source of your problem. — mu is too short
– mu is too short, Commented Jun 6, 2011 at 16:19

mu is too short · Accepted Answer · 2011-06-06 16:18:04Z

2

First of all, the venue['name'] is a scalar, not an array; secondly, venue['location'] (which I think you're trying to access) is not encoded as an array, that's just an object:

location: {
    address: "...',
    city: "...",
    // ...
}

So here you want:

venue['location']

Then, your venue['name']['categories'][0]['id'] will fail because, again, venue['name'] is a scalar; for this one, you want:

venue['categories'][0]['id']

answered Jun 6, 2011 at 16:18

mu is too short

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1 Comment

Caley Woods Over a year ago

+1 from me. If venue['name']['categories'] worked categories would have to be nested under name.

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