用 jq 转换 json object，用 base64 解码转换值

Question

I'm working with a json object that looks like this:

{
    "someattrinbute": "somevalue",
    "data": {
        "SOMENAME": "...",
        "SOMEOTHERNAME": "...",
        ...
    }
}

Where all the values in the "data" object are base64-encoded. I want to produce the same json, but with all the property values in the "data" object are base64-decoded.

I believe this would involve using "to_entries", "from_entries", and the "@base64d" function, but I can't see how to package this all together.

I'll be doing this in a bash shell script.

Answer 1

Given example.json:

{
    "someattrinbute": "somevalue",
    "data": {
        "SOMENAME": "MTIz",
        "SOMEOTHERNAME": "NDU2"

    }
}

the invocation:

$ jq '.data[] |= @base64d' example.json

produces:

{
  "someattrinbute": "somevalue",
  "data": {
    "SOMENAME": "123",
    "SOMEOTHERNAME": "456"
  }
}

Answer 2

map_values can be used for to apply the @base64d function to each element of the object.

For example

jq '.data|map_values(@base64d)' example.json