How to use the node-opcua-service-query.QueryFirstRequest function in node-opcua-service-query
To help you get started, we’ve selected a few node-opcua-service-query examples, based on popular ways it is used in public projects.
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node-opcua / node-opcua / packages / node-opcua-client / src / client_session.js View on Github 
ClientSession.prototype.queryFirst = function (queryFirstRequest, callback) {
const self = this;
assert(_.isFunction(callback));
const request = new query_service.QueryFirstRequest(queryFirstRequest);
self.performMessageTransaction(request, function (err, response) {
/* istanbul ignore next */
if (err) {
return callback(err);
}
assert(response instanceof query_service.QueryFirstResponse);
callback(null, response.results);
});
};node-opcua-service-query
pure nodejs OPCUA SDK - module service-query
