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POParse JSON in Google Refine
 

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    <p>I'm trying to pull out specific elements from results from the Data Science Toolkit coordinates2politics API, using Google Refine.</p> <p>Here is sample cell #1:</p> <pre><code>[{"politics":[ {"type":"admin2","friendly_type":"country","code":"usa","name":"United States"}, {"type":"admin6","friendly_type":"county","code":"55_025","name":"Dane"}, {"type":"constituency","friendly_type":"constituency","code":"55_02","name":"Second district, WI"}, {"type":"admin5","friendly_type":"city","code":"55_48000","name":"Madison"}, {"type":"admin5","friendly_type":"city","code":"55_53675","name":"Monona"}, {"type":"admin4","friendly_type":"state","code":"us55","name":"Wisconsin"}, {"type":"neighborhood","friendly_type":"neighborhood","code":"Eastmorland|Madison|WI","name":"Eastmorland"} ],"location":{"longitude":"-89.3259404","latitude":"43.0859191"}}] </code></pre> <p>I added a column based on this column using this GREL syntax to pull out the county, Dane:</p> <pre><code>value.parseJson()[0]["politics"][1]["name"] </code></pre> <p>But when I got to Sample Cell #2, the syntax no longer works because the JSON result is a little different: </p> <pre><code>[{"politics":[ {"type":"admin2","friendly_type":"country","code":"usa","name":"United States"}, {"type":"constituency","friendly_type":"constituency","code":"55_05","name":"Fifth district, WI"}, {"type":"admin4","friendly_type":"state","code":"us55","name":"Wisconsin"}, {"type":"admin6","friendly_type":"county","code":"55_079","name":"Milwaukee"}, {"type":"admin5","friendly_type":"city","code":"55_84675","name":"Wauwatosa"}, {"type":"constituency","friendly_type":"constituency","code":"55_04","name":"Fourth district, WI"} ],"location":{"longitude":"-88.0075875","latitude":"43.0494572"}}] </code></pre> <p>Is there some way to sort the JSON or phrase my syntax so that I can find the county in either case?</p> <h3>Update</h3> <p>Here's the magic GREL that allowed me to find elements in the JSON string by name, not just position:</p> <pre><code>filter(value.parseJson()[0]["politics"], item, item["type"]=="admin6")[0]["name"] </code></pre>
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