node.js - Serialize query parameters to a filename -

i'd map api request 1::1 file name.

this means, among other things, serializing query params safe filename, ideally on both windows , *nix.

if api request this:

api/eggs/fresh?search=brown&order=asc 

then filename might be:

api/eggs/fresh?search=brown&order=asc.json 

but ? char , maybe & unsafe, have encode them think.

the serialization must bi-directionally deterministic. have able data out. converting illegal characters _, example, wouldn't meet criteria.

is right method querystring.encode? encoding urls might work if % file system safe. how url encode in node.js?? or there better suited file system?

i'm following process:

1. get folder + resource name
2. get array of params in request
3. alphabetize params (so order doesn't matter)
4. join params & (i think safe in modern file systems)
5. concat folder/resource + __&__ + paramstring + .json

this fails if uses __&__ part of actual query, think that's unlikely. not cleanest solution, i'd love better one!