using tedious connection,need to get the total data - reactjs

Question

hai I am new to tedious and Es-6,It may be a silly question but I am struggling,
I want the total data in a array, using tedious connections here is my code:
getZipData() {
var Connection = require('tedious').Connection;
Request = require('tedious').Request;
var config = {
userName: 'xx',
password: 'xxxx',
server: 'xxx', // You can use 'localhost\\instance' to connect to named instance
options: {
database: 'xxxxx',
rowCollectionOnDone:'true'
}
}
var connection = new Connection(config);
var jsonArray = [];
connection.on('connect', function (err) {
if (err) {
console.log(err)
}
var sql = "SELECT * FROM xxxxx";
return new Promise(function(resolve,reject){
var request = new Request(sql,
(err, rowCount, rows)=>{
if (err) {
reject(err);
}
else {
alert("rows");
console.log(rowCount + 'rows');
}
});
request.on('row', (columns)=>{
var rowObject = {};
columns.forEach((column)=> {
rowObject[column.metadata.colName] = column.value;
});
jsonArray.push(rowObject);
});
connection.execSql(request);
request.on('done', function(rowCount, more) {
console.log(rowCount + ' rows returned');
alert("jsonArray2:"+jsonArray);
resolve(jsonArray)
});
});
})
}
componentWillMount() {
this.getZipData().then(function(resolved){
console.log(resolved);
alert("data:"+resolved);
}).catch(function(rejected){
console.log(rejected);
})
}
when i add the request.on('done', function(rowCount, more) also i didn't get any data can any one give the solution for it,
I want the total data to be displayed

Answer 1

It looks like you're calling resolve before your query has been executed:
var jsonArray = [];
// Register callback for row event
request.on('row', (columns)=>{
var rowObject = {};
columns.forEach((column)=> {
rowObject[column.metadata.colName] = column.value;
});
jsonArray.push(rowObject);
});
// Call resolve before executing request
resolve(jsonArray);
connection.execSql(request);
The docs mention a done event that indicates a request has completed:
request.on('done', function (rowCount, more, rows) {
// Call resolve here instead?
resolve(jsonArray);
});
Disclaimer: I've haven't actually used Tedious, but from the docs linked this looks like what you're looking for.