Trying to do an http call to a remote URL - node.js

Question

I'm trying to do a remote call in my node.js application to an external URL, then parse that request and perform an action based on the return. I'm using express and mysql.
I was able to get the remote URL content, however, I'm having some kind of race condition where my output is always changing and is not reliable. I tried to use async/await but wasn't able to.
This is the function called to run the app:
function lista(servidores) {
return new Promise(function(resolve, reject) {
var sql = ' SELECT sv.id as svid, sv.ip as svip'+
' FROM servidores sv'
dbconfig.conexao.query(sql, function (err, result, fields) {
Promise.all(
result.map(row => {
var ipsv = row.svip;
var urlprobe = 'http://201.182.96.14:8000/PING/' + ipsv;
fetch(urlprobe, {
method: 'get',
headers: {
'Accept': 'application/json, application/xml, text/plain, text/html, *.*',
'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8'
},})
.then(
response => response.json(),
error => console.log('Ocorreu um erro', error)
)
.then(
json => console.log(json),
)
})
).then(result => result);
return resolve();
});
})
}
When all these functions are called, everything works ok until the monitora() function. The output is random based on which fetch answers faster, and therefore the result is not reliable. The ideal is that
monitora() performs each fetch separetely and then process the if's based on each one of the results.
#edit: I edited the code and made the fetch directly on the main function, however I'm still receiving inconsistent results, like if there was some sort of caching somewhere.

Answer 1

I'm not sure if I understand correctly but you can try using Promise.all() function to wait for all fetch requests to finish, before taking an action.
Promise.all(
result.map(row => {
var urlMon = 'http://' + row.pip + ':8000/PING/' + ipsv;
monitora(urlMon, idsv);
})
).then(result => result /*Do something */);