parse error: Invalid numeric literal at line 1, column 8 - linux

Question

I am trying to get a token to some site by using curl. It looks like request is done correctly because I have to wait a bit for response however something is during deserialization because I always got error: parse error: Invalid numeric literal at line 1, column 8
This is how script looks like:
TOKEN=$(curl --request POST \
--url 'https://${DOMAIN_NAME}/getmy/token' \
--header 'content-type: application/json' \
--data '{"grant_type":"password", "username":"${USER_EMAIL}",
"password":"${USER_PASSWORD}",
"audience":"https://localhost:8443/my-composite-service", "scope":"openid
email test:read test:write", "client_id": "${CLIENT_ID}",
"client_secret": "${CLIENT_SECRET}"}' -s | jq -r .access_token)
Is it because of jq?
What is more I am sure that env variables are there, even with hard coded values the same error will be thrown.
Thank you in advance

Answer 1

Some hints:
Do not put everything in one line, make it readable instead.
Structure your code with functions.
Do error handling.
Use Bash's debugging functionality.
Do not build JSON with string concatenation, use JQ instead, because only JQ quotes JSON data correctly. A password may contain quoting characters.
An example:
set -eu
set -x
USER_EMAIL="user#domain.org"
USER_PASSWORD="password"
CLIENT_ID="id"
CLIENT_SECRET="secret"
DOMAIN_NAME="domain.org"
data()
{
local template='
{
"grant_type": "password",
"username": $username,
"password": $password,
"audience": "https://localhost:8443/my-composite-service",
"scope": "openid email test:read test:write",
"client_id": $client_id,
"client_secret": $client_secret
}'
if jq <<<null -c \
--arg username "${USER_EMAIL}" \
--arg password "${USER_PASSWORD}" \
--arg client_id "${CLIENT_ID}" \
--arg client_secret "${CLIENT_SECRET}" \
"$template"
then
return
else
printf "ERROR: Can not format request data." >&2
exit 1
fi
}
post()
{
if curl --request POST \
--url 'https://${DOMAIN_NAME}/getmy/token' \
--header 'content-type: application/json' \
--data "$1" \
-s
then
return
else
printf "ERROR: Can not send post request." >&2
exit 1
fi
}
token()
{
if jq -r .access_token
then
return
else
printf "ERROR: Can not parse JSON response." >&2
exit 1
fi
}
TOKEN="$(post "$(data)" | token)"