Bash Select Formatting - bash

Question

I have setup a script I can run to connect to my servers, which are contained in a json string variable.
While the script works just fine, I am finding that I do not really care too much for the select output as it shows me the entire row. What I would like to do is simply display the server yet still return the ip and user.
Is this possible? If so, how? Here is my code:
#!/bin/bash
_key="/home/MyUser/Documents/Keys/MyKey.pem"
# our server json
_servers='[{"server":"server1","ip":"10.0.0.1","user":"root"},{"server":"server2","ip":"10.0.0.2","user":"ubuntu"},{"server":"server3","ip":"192.168.4.112","user":"ec2-user"}]';
# loop over the items and display the server
echo "- Select a server to connect to: "
select _t in $(echo ${_servers} | jq -c '.[]'); do
# will keep asking until valid value given
[ -n "$_t" ] && break
done
# parse the selected row
_server=$(echo $_t | jq '.server');
_ip=$(echo $_t | jq '.ip');
_user=$(echo $_t | jq '.user');
echo "Connnecting to: ${_server:1:-1}";
sleep 2
#echo ${_ip:1:-1}
#echo ${_user:1:-1}
# make the connection
ssh -i $_key ${_user:1:-1}#${_ip:1:-1}
the select currently shows me:
me#MyMachine:~/Desktop# bash test
- Select a server to connect to:
1) {"server":"server1","ip":"10.0.0.1","user":"root"}
2) {"server":"server2","ip":"10.0.0.2","user":"ubuntu"}
3) {"server":"server3","ip":"192.168.4.112","user":"ec2-user"}
#?
And what I would like it to show instead:
me#MyMachine:~/Desktop# bash test
- Select a server to connect to:
1) server1
2) server2
3) server3
#?

Answer 1

You need an associative array that maps a server name to the JSON object representing that server.
declare -A servers
while read -r name data; do
servers[$name]=$data
done < <(jq -rc '.[] | "\(.server) \(.)"' <<< "$_servers")
Then you'll select a server name, and process the associate data after the select statement.
select _t in "${!servers[#]}"; do
[ -n "$_t" ] && break
done
read _server _ip _user < <(jq -rc '[.server, .ip, .user][]' <<< "${servers[$_t]}"
Alternatively, process the JSON once and store the IP addresses and user names in separate arrays.
declare -A ips users
while read -r _server _ip _user; do
ips[$_server]=$_ip
users[$_server]=$_user
done < <(jq -rc '.[] | "\(.server) \(.ip) \(.user)"' <<< "$_servers")
select _server in "${!ips[#]}"; do # could use "${!users[#]}" as well
[ -n "$_server" ] && break
done
_ip=${ips[$_server]}
_user=${users[$_user]}