How to pass parameter to async.reflect functions?

Question

I have to post a bunch of requests to the same endpoint with different payloads. The payloads are all in a loop and I felt async.parallelLimit used alongwith async.reflect would solve the issue. But I ran into the closure and scope issue with this. I know how to address this with a setTimeoutusing the third parameter. Below is my snippet of code,

var tasks = [];
for ( i in items  ){
  if ( items[i] ){
    tasks.push(async.reflect(function(callback) {
      axios.post(storeEndpoint, items[i])
      .then(callback)
      .catch(function(err){
        console.log('error', err);
      });
    }));
  } 
}
async.parallelLimit(tasks, 10, (err, results) => {
  console.log("res: ", results.length);
  console.log('done');
});

Any pointers are appreciated.