I have found the core 'get-in' function to be useful for extracting data 
from big trees of clojure data structures, perhaps
that will help.

I'm still in search of tools that let me get a good sense of *what* to 
navigate when looking at such trees
of data structures from API's  and/or data sources I'm unfamiliar with.  I 
find that to be pretty painful, not least
because emacs (and maybe the REPL) get seriously compute wedged printing 
large data structures.

An example of this is Amazonica, which will flatten ALL the data in a 
hierarchy of java data structures from
the AWS SDK into one gigantic tree.  It's a nifty tool, but the resulting 
flood of data with one careless query or printed tree fragment has been 
known to knock out my emacs session for minutes at a time.

I wrote a tool to analyze unique key paths in large trees so that I might 
know, for a given tree, what would be useful to provide as the access path 
to 'get-in'.
However I'm not happy enough with my tool to post it here, it needs some 
kind of syntax for describing sequences in the tree (since you don't want 
to see every unique key
used to access a sequence of 10,000 things).


On Wednesday, August 19, 2015 at 10:18:06 AM UTC-4, Hussein B. wrote:
>
> Hi,
>
> I have transformed JSON response into the equivalent data structure using 
> Cheshire library.
>
> The result is a huge nested data structure , mostly vectors and maps. It 
> is actually a tree.
>
> How to find a property that is nested deep inside the tree ? For example 
> I'm search for the node that has the value zyx for property "uuid".
>
> What I'm supposed to use? Something like zipper or walk? or something 
> simpler is available?
>
> Thanks for help.
>

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