How to split many requests to chunks in JavaScript

Question

I have a set of requests but they can not be called all simultaneously so I decided to split the set into the chucks of 10. I am wondering how can I make 10 requests and wait for them all to complete like the example above:

data = []
for(mindex = 0; mindex < 1000; mindex = mindex + 10){
   request_chunk = []
   for(index = mindex+1; index < mindex+10; index++){
      request_chunk.push(api.call(requests[index]).getPromise();
   }

  data = data + waitPromiseToComplete(request_chunk);
}

Maybe as an alternative strategy use https://www.npmjs.com/package/bottleneck — Sirko, Apr 28 '20 at 06:34
Are you willing to use rxjs? https://stackoverflow.com/questions/59749690/parallel-http-requests-via-forkjoin-and-response-identification — davidmpaz, Apr 28 '20 at 06:47
Yes it is, take a look to the link. Although you got already an answers with promises which was originally requested by you — davidmpaz, Apr 28 '20 at 07:24

score 1 · Answer 1 · answered Apr 28 '20 at 06:54

You can use Promise.all and await:

(async function () {
  const data = []; // always declare variables!
  for(let mindex = 0; mindex < 1000; mindex = mindex + 10){
    const request_chunk = []
    for(let index = mindex + 1; index < mindex + 10; index++){
      request_chunk.push(api.call(requests[index]).getPromise();
    }

    data = data.concat(await Promise.all(request_chunk));
  }
})();

How to split many requests to chunks in JavaScript

1 Answers1