How to parse dynamic id fields in json in nodejs - json

Question

I am trying to extract some info using the wikipedia api - http://en.wikipedia.org/w/api.php?action=query&generator=random&grnnamespace=0&prop=extracts&explaintext&exintro=&format=json
The response I get is as below,
{"query":
{"pages":
{"1350786":
{"pageid":1350786,"ns":0,"title":"2005 in Wales","extract":"This article is about the particular significance of the year 2005 to Wales and its people."}}}}
How can I traverse to the "extract" field here in node.js? I am trying to use query.pages. something but since the id changes for each call I make, I am not sure how to access the extract.

Answer 1

If you don't know the id (which is a dictionary key under pages) you can just traverse all the keys under pages to get the extract field:
var obj1 =
{
"query":
{
"pages":
{"1350786":
{"pageid":1350786,"ns":0,"title":"2005 in Wales",
"extract":"This article is about the particular significance of the year 2005 to Wales and its people."}
}
}
}
for (var key in obj1.query.pages){
console.log(obj1.query.pages[key].extract);
}