It's working thanks please someone correct the documentation setSecretKey(String) Defines secret key used for client authentication. When provided, client request must contain HTTP header X-Signature with the string "[1]:[2]", where [1] is timestamp in milliseconds and [2] is the Base64 encoded SHA1 hash of the secret key.
https://apacheignite.readme.io/v2.0/docs/rest-api -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
