How to stop response before all the code is executed, using async await

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Javascript

asynchronous

Async

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I have a function named getActiveUsers which helps me to find active users

I first want to get data from Reward collection, which will return 100 data to rewards array. After waiting for all the results, I want to go through the retrieved array(rewards) one by one, and get data from another collection call Callback. And this data will be pushed to another array called results one by one.(I have used a map function for that) After awaiting for all 100 records to results array, I want to send it as the response. But unfortunately, my code does not wait for the map function. It send response as a empty array(results). And later runs the map and pushes elements to results array. Please help me fix this by using async/await only. If it is not possible, give me the best solution.

What I have tried:

const getInactiveUsers = async (req, res) => {
let results = [];

const rewards = await Reward.find().distinct('data');

await rewards.map(async (reward) => {
    const result = await Callback.findOne({
        data: reward,
    });
    results.push(result);
});

return res
    .status(400)
    .json({ success: true, count: results.length, data: results })};