jq parse JSON to bash4 associative array! "jq is like sed for JSON data" https://stedolan.github.io/jq/

jq-json-to-associative-array-command-line-example.txt

admin@ip-172-31-90-86:~$ json=$(                    
  cat <<- EOF
  {
    "foo": "baru-1",
    "su": "baru-2",
    "dive": "baru-3"
  }
EOF
)
admin@ip-172-31-90-86:~$ echo $json
{ "foo": "baru-1", "su": "baru-2", "dive": "baru-3" }
admin@ip-172-31-90-86:~$ arrayAsString=$(echo $json | jq --raw-output '. | to_entries | map("[\(.key)]=\(.value)") | reduce .[] as $item ("associativeArray=("; . + $item + " ") + ")"')
admin@ip-172-31-90-86:~$ echo $arrayAsString
associativeArray=([dive]=baru-3 [foo]=baru-1 [su]=baru-2 )
admin@ip-172-31-90-86:~$ declare -A "$arrayAsString"
admin@ip-172-31-90-86:~$ echo ${associativeArray[foo]}
baru-1
admin@ip-172-31-90-86:~$ echo ${associativeArray[su]}
baru-2
admin@ip-172-31-90-86:~$ echo ${associativeArray[dive]}
baru-3
admin@ip-172-31-90-86:~$ jq

jq - commandline JSON processor [version 1.4-1-e73951f]
Usage: jq [options] <jq filter> [file...]

For a description of the command line options and
how to write jq filters (and why you might want to)
see the jq manpage, or the online documentation at
http://stedolan.github.com/jq

admin@ip-172-31-90-86:~$ /bin/bash --version
GNU bash, version 4.3.30(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
admin@ip-172-31-90-86:~$ ec2metadata
ami-id: ami-b14ba7a7

jq-json-to-associative-array.sh

##
# "Piping … JSON into JQ"
# https://stackoverflow.com/questions/26717277/converting-a-json-object-into-a-bash-associative-array#51690860
# `declare -A` only works in bash4
#
json=$(
  cat <<- EOF
  {
    "foo": "baru-1",
    "su": "baru-2",
    "dive": "baru-3"
  }
EOF
)
arrayAsString=$(echo $json | jq --raw-output '. | to_entries | map("[\(.key)]=\(.value)") | reduce .[] as $item ("associativeArray=("; . + $item + " ") + ")"')
declare -A "$arrayAsString"
#echo ${associativeArray[foo]}