Read a JSON file in AE extendscript

Thanks all. The json2 method did the trick, i was not aware of that. Still a noob in a lot of ways. 🙂

If the file you want to parse is relatively small (kb's of size), listed methods above are great. However, json2 library parser is extremely slow with bigger files.  As long as you are sure JSON is well formated and "safe", this is the fastest way in doing it, N times, literally:

var scriptFile = new File(filePath);
scriptFile.open('r');
var content = scriptFile.read();
scriptFile.close();
var dataObj = (new Function( "return " + content ))() ;

Try this tutorial from NT production, https://www.youtube.com/watch?v=mmFlGCEwrm8 

See this tutorial how to use JSON data with Ae ExtendScript:

https://aescripts.com/learn/After-Effects-Scripting-JSON-Tutorial/

I'm not clear what specifically you are asking. There is technically nothing to parse because it's already JavaScript that can be manipulated using regular functions. I'm not aware that there is a generic library or code snippet out there that would simply convert the node structure to arrays or whatever you may need, but clearly there's enough reference out there on how to deal with this on web frameworks like Node JS and the principles and methods could be adapted. Anything more specific will require much more detailed info on your part.

Mylenium