问题
I am requesting user detail in facebook after getting token . I got the following response. Response as follows
"{\"id\":\"xxxxx\",\"name\":\"abcd\",\"first_name\":\"ab\",\"last_name\":\"cd\",
\"link\":\"http:\\/\\/www.facebook.com\\/profile.php?id=xxxxx\",\"quotes\":\"Life is a difficult game. You can win it only by retaining your birthright to be a person.\",\"gender\":\"female\",\"timezone\":5.5,\"locale\":\"en_US\",\"verified\":true,\"updated_time\":\"2012-02-22T12:59:39+0000\"}"
I printed the class of response showing as "String". I want to change this into a hash.
(I want to remove the \ in the above).
I tried but not get the correct format.
回答1:
That's JSON. You just need to parse it.
require 'json'
JSON.parse("{\"id\":\"xxxxx\",\"name\":\"abcd\",\"first_name\":\"ab\",\"last_name\":\"cd\",
\"link\":\"http:\\/\\/www.facebook.com\\/profile.php?id=xxxxx\",\"quotes\":\"Life is a difficult game. You can win it only by retaining your birthright to be a person.\",\"gender\":\"female\",\"timezone\":5.5,\"locale\":\"en_US\",\"verified\":true,\"updated_time\":\"2012-02-22T12:59:39+0000\"}")
#=> {"id"=>"xxxxx", "name"=>"abcd", "first_name"=>"ab", "last_name"=>"cd", "link"=>"http://www.facebook.com/profile.php?id=xxxxx", "quotes"=>"Life is a difficult game. You can win it only by retaining your birthright to be a person.", "gender"=>"female", "timezone"=>5.5, "locale"=>"en_US", "verified"=>true, "updated_time"=>"2012-02-22T12:59:39+0000"}
回答2:
The response you get is a JSON object. The easiest way to parse that into a hash is by using the JSON gem. Here's an example with the first few entities in your string. As you can see it just returns a hash.
ruby-1.9.3-rc1 :001 > require 'json'
=> true
ruby-1.9.3-rc1 :002 > JSON.parse("{\"id\":\"xxxxx\",\"name\":\"abcd\",\"first_name\":\"ab\"}")
=> {"id"=>"xxxxx", "name"=>"abcd", "first_name"=>"ab"}
来源：https://stackoverflow.com/questions/9532527/remove-back-slash-in-string