How to replace numeric value with string representation in JSON?

Question

I have a JSON file with several uid fields that are numeric but I need to convert them to string. These uid fields are nested in different places in the file.

e.g.   "uid": 891602734537070110  => "uid": "891602734537070110"

I tried this command:

jq '(.. | .uid?) |= (tostring)'

which somewhat worked but it added a "uid" field (e.g. "uid": "null") to any dictionaries that didn't have one to begin with.

What is the correct way of doing this?

Just beware that those are very large numbers. It will have double precision so the values may actually end up different as a string. github.com/stedolan/jq/issues/1741 — Jeff Mercado
– Jeff Mercado, Commented Aug 25, 2019 at 19:34

oguz ismail · Accepted Answer · 2019-08-25 18:48:01Z

2

The correct way of doing this is walk:

walk(
  if type == "object" and has("uid")
  then .uid |= tostring
  else . end
)

answered Aug 25, 2019 at 18:48

oguz ismail

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