registerlogin.js

//Login URL:
//https://preview.gamesparks.net/callback/<yourAPIKey>/userLogin/<yourCredentialSecret>?username=<username>&password=<password>

//Register URL:
//https://preview.gamesparks.net/callback/<yourAPIKey>/register/<yourCredentialSecret>?username=<username>&password=<password>&displayName=<displayName>



//The login code:
var uPwd = Spark.getData().password;
var uName = Spark.getData().username;

var authenticationResponse = Spark.sendRequest(
    {
     "@class": ".AuthenticationRequest",
     "password": uPwd,
     "userName": uName
    }
)

if (authenticationResponse.error == null) {
    Spark.setScriptData("RESPONSE_RAW", '{"Status":"Success"}');
} else {
    Spark.getLog().error(authenticationResponse)
    Spark.setScriptData("RESPONSE_RAW", '{"Status": ""}');
}

//The register code:
var uPwd = Spark.getData().password;
var uName = Spark.getData().username;
var dName = Spark.getData().displayname;

var registrationResponse = Spark.sendRequest(
{
 "@class": ".RegistrationRequest",
 "displayName": uName,
 "password": uPwd,
 "segments": {},
 "userName": uName
}
)

if (registrationResponse.error == null) {
    Spark.setScriptData("RESPONSE_RAW", '{"Status":"Success"}');
} else {
    Spark.getLog().error(registrationResponse)
    Spark.setScriptData("RESPONSE_RAW", '{"Status": ""}');
}