undefined result nodejs async await - node.js

Question

i'm testing await functions but i have an "undefined" result when i check the return of the async function, my express function is like this (i removed unnecesary code, just to show how i am using the async
const getAppsConsumptionSum = async (msisdn, startPeriod, endPeriod) => {
var urlTigoPlus = 'http://...';
var args = {
requestConfig: {
timeout: config.get('localServer.remoteTimeout')
}
};
remoteApi = await restClient.get(url, args,
async (data, response) => {
if (response.statusCode === 200) {
sumatoria = await group(data.arrayofdata).by('subapplication').reduce(async function(id, entries) {
return {
appname: id,
mb: (entries.map(getBytes).reduce(add)) / 1048576
};
});
return sumatoria;
} else {
next(utils.error(503));
}
}
);
};
exports.dataAppsConsumption = async function(req, resp, next) {
let prepaidQuery = 'select ...';
const resultPrepaid = await clientDseDev.execute(prepaidQuery)
.then(async resultPrepaid => {
sumatoria = await getAppsConsumptionSum(variable1, startPeriod, endPeriod);
console.log('this variable shows undefined ' + sumatoria)
//i tried also with this
getAppsConsumptionSum(variable1, startPeriod, endPeriod).then((sumatoria) => {
console.log('this variable shows undefined ' + sumatoria)
});
})
.catch((err) => {
console.log(err)
});
};

Answer 1

thanks all for your help, #jfriend00 solution was right, also i had to add a return before the call to the axios function
return axios.get(url, options
)
.then(async function (response) {
if (response.status === 200){
group(response.data.arrayofdata).by('subapplication').reduce(function(id, entries) {
return {
appname: id,
mb: (entries.map(getBytes).reduce(add)) / 1048576
};
});
return sumatoria;