Regex extract substring ruby

Question

"{\"status\":1,\"redirect\":\"/some/uri/uri2/index.html?post_login=80607979823520\",\"security_token\":\"/cpsess8233434446\"}"

I am getting this response as string and I need to extract security_token value. I tried to convert the string to Hash by eval method.seems not worked and I need to do a regex match.

fmendez · Accepted Answer · 2013-03-12 14:12:56Z

2

You can do this:

require 'json'
a =  JSON.load "{\"status\":1,\"redirect\":\"/some/uri/uri2/index.html?post_login=80607979823520\",\"security_token\":\"/cpsess8233434446\"}"
p a["security_token"]  #=> "/cpsess8233434446"

answered Mar 12, 2013 at 14:12

fmendez

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benchwarmer · Accepted Answer · 2013-03-12 14:13:32Z

2

You need to parse the JSON data..

result = "{\"status\":1,\"redirect\":\"/some/uri/uri2/index.html?post_login=80607979823520\",\"security_token\":\"/cpsess8233434446\"}" 
h = JSON.parse(result)
h['security_token']      # => "/cpsess8233434446"

answered Mar 12, 2013 at 14:13

benchwarmer

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user559633 · Accepted Answer · 2013-03-12 14:14:44Z

1

You can either JSON.load the data and filter for ['security_token'] or use a .match(/security_token/) style regex expression.

I'd suggest the prior for future readability and code maintenance.

answered Mar 12, 2013 at 14:14

user559633

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