I have a function that fires up request multiple times, but need to add delay between each so that I don't spam the server:
async function multiReq(iterationNr){
for (let i=0; i++; iterationNr ) {
//send request here
res.push(resultOfTheRequest);
}
return res;
};
console.log(multiReq(10));
Where should I have timeout so that I have e.g. req 1, wait 1 sec, req 2, wait 1 sec until finished and then return res array?
One option would be to await a Promise that resolves after 1 second whenever you need to add a delay:
const delay = ms => new Promise(resolve => setTimeout(resolve, ms));
async function multiReq(iterationNr){
const res = [];
for (let i=0; i < iterationNr; i++) {
// If you don't need to wait for the response to come back yet, remove the await:
const result = await makeRequest();
await delay(1000);
res.push(result);
}
return res;
}
Also note that for loops have the condition second, and the incrementer third, not the other way around, and that function blocks } should not have semicolons after the end.
I found that if you are using http 1.1 and you put “Connection: close” (default is “keep-alive”) in the header of the request, then you don’t need the delay and you can fire off as many requests this way as you like.
