bash - Is there a way to read all key-value pairs in the JSON file and then initialize all variables accordingly in shell?

Question

Given a JSON file, arguments.json:

{"dagger": true, "version": false, "nether_strike": true, 
 "greater_bash": "5", "FILE": "ancientscroll.txt", 
 "empower_haste": "1", "help": false}

I can read using jq in shell and initialize the variables individually:

dagger=$(cat arguments.json | jq '.["dagger"]')
greater_bash =$(cat arguments.json | jq '.["greater_bash"]')    

echo $dagger
echo $greater_bash

Is there a way to read all key-value pairs in the JSON file and then initialize all variables accordingly in shell?

Answer 1

You can loop over the key/value pairs and use declare to create variable names dynamically.

while read -r name value; do
    declare "$name=$value"
done < <(jq -r 'to_entries[] | "(.key) (.value)"' arguments.json)