Can you use an if else statement with Curl command in bash script - bash

Question

I have command I am running with works for one enviornment in a bash script e.g.
so for example
ZONE_ID=prod
#!/bin/bash
curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/purge_cache" \
-H "X-Auth-Email: EMAIL" \
-H "X-Auth-Key: AUTH_KEY" \
-H "Content-Type: application/json" \
--data '{"purge_everything":true}'
What i would like to do is change the data item if possible for a different environment depending on the zone_id
ZONE_ID=prod
ZONE_ID=UAT
for example UAT would be
curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/purge_cache" \
-H "X-Auth-Email: EMAIL" \
-H "X-Auth-Key: AUTH_KEY" \
-H "Content-Type: application/json" \
--data '{"files":["http://www.example.com/css/styles.css",{"url":"http://www.example.com/cat_picture.jpg","headers":{"Origin":"https://www.cloudflare.com","CF-IPCountry":"US","CF-Device-Type":"desktop"}}]}'
So what I kind of want to do is the following, but this doesnt work
#!/bin/bash
curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/purge_cache" \
-H "X-Auth-Email: EMAIL" \
-H "X-Auth-Key: AUTH_KEY" \
-H "Content-Type: application/json" \
if [$ZONE_ID -q prod]; then
--data '{"purge_everything":true}'
else
--data '{"files":["http://www.example.com/css/styles.css",{"url":"http://www.example.com/cat_picture.jpg","headers":{"Origin":"https://www.cloudflare.com","CF-IPCountry":"US","CF-Device-Type":"desktop"}}]}'

Answer 1

One possible way to do it is:
#! /bin/bash
curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/purge_cache" \
-H "X-Auth-Email: EMAIL" \
-H "X-Auth-Key: AUTH_KEY" \
-H "Content-Type: application/json" \
--data "$(if [[ $ZONE_ID == prod ]]; then
echo '{"purge_everything":true}'
else
echo '{"files":["http://www.example.com/css/styles.css",{"url":"http://www.example.com/cat_picture.jpg","headers":{"Origin":"https://www.cloudflare.com","CF-IPCountry":"US","CF-Device-Type":"desktop"}}]}'
fi)"
However, a much better option (for clarity and maintainability) is to put the --data argument in a variable.

Answer 2

I would recommend set variable before use it in curl command
example as follow
DATA=""
if [ "$ZONE_ID" = "prod" ]; then
DATA='{"purge_everything":true}'
else
DATA='{"files":["http://www.example.com/css/styles.css",{"url":"http://www.examp
le.com/cat_picture.jpg","headers":{"Origin":"https://www.cloudflare.com","CF-IPC
ountry":"US","CF-Device-Type":"desktop"}}]}'
fi
curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/purge_cache"
\
-H "X-Auth-Email: EMAIL" \
-H "X-Auth-Key: AUTH_KEY" \
-H "Content-Type: application/json" \
--data $DATA