Optionalcontext: ISessionContext{CallMethodRequest} the call method request
const methodToCall = {
objectId: "ns=2;i=12",
methodId: "ns=2;i=13",
inputArguments: [
new Variant({...}),
new Variant({...}),
]
}
session.call(methodToCall,function(err,callResult) {
if (!err) {
console.log(" statusCode = ",callResult.statusCode);
console.log(" inputArgumentResults[0] = ",callResult.inputArgumentResults[0].toString());
console.log(" inputArgumentResults[1] = ",callResult.inputArgumentResults[1].toString());
console.log(" outputArgument[0] = ",callResult.outputArgument[0].toString()); // array of variant
}
});
const methodsToCall = [ {
objectId: "ns=2;i=12",
methodId: "ns=2;i=13",
inputArguments: [
new Variant({...}),
new Variant({...}),
]
}];
session.call(methodsToCall,function(err,callResults) {
if (!err) {
const callResult = callResults[0];
console.log(" statusCode = ",rep.statusCode);
console.log(" inputArgumentResults[0] = ",callResult.inputArgumentResults[0].toString());
console.log(" inputArgumentResults[1] = ",callResult.inputArgumentResults[1].toString());
console.log(" outputArgument[0] = ",callResult.outputArgument[0].toString()); // array of variant
}
});
Pseudo session is an helper object that exposes the same async methods than the ClientSession. It can be used on a server address space.
Code reused ! The primary benefit of this object is that its makes advanced OPCUA operations that uses browse, translate, read, write etc similar whether we work inside a server or through a client session.