Answered on StackOverflow [1]:
"it's required to move the ignite-rest-http module from the
{IGNITE_HOME}/libs/optional/ directory to the {IGNITE_HOME}/libs to enable
REST API."
[1]
https://stackoverflow.com/questions/76790017/unable-to-make-rest-api-calls-to-ignite-on-local-host
I am referring this document https://ignite.apache.org/docs/latest/setup
I have downloaded the Ignite 2.15.0 binaries
and followed every steps of setting up and rest-api document
https://ignite.apache.org/docs/latest/setup
https://ignite.apache.org/docs/latest/quick-start/restapi#ignite-quick-s