node/deps/npm/node_modules/promise-inflight
Myles Borins 2e54524955
deps: update npm to 7.0.0-rc.3
PR-URL: https://github.com/nodejs/node/pull/35474
Reviewed-By: Ruy Adorno <ruyadorno@github.com>
Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org>
Reviewed-By: Ben Coe <bencoe@gmail.com>
Reviewed-By: Geoffrey Booth <webmaster@geoffreybooth.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Shelley Vohr <codebytere@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2020-10-07 09:59:49 -04:00
..
inflight.js deps: upgrade npm beta to 5.0.0-beta.56 2017-05-23 19:39:43 +02:00
LICENSE deps: upgrade npm to 6.13.1 2019-11-20 19:16:47 -05:00
package.json deps: update npm to 7.0.0-rc.3 2020-10-07 09:59:49 -04:00
README.md deps: upgrade npm beta to 5.0.0-beta.56 2017-05-23 19:39:43 +02:00

promise-inflight

One promise for multiple requests in flight to avoid async duplication

USAGE

const inflight = require('promise-inflight')

// some request that does some stuff
function req(key) {
  // key is any random string.  like a url or filename or whatever.
  return inflight(key, () => {
    // this is where you'd fetch the url or whatever
    return Promise.delay(100)
  })
}

// only assigns a single setTimeout
// when it dings, all thens get called with the same result.  (There's only
// one underlying promise.)
req('foo').then()
req('foo').then()
req('foo').then()
req('foo').then()

SEE ALSO

  • inflight - For the callback based function on which this is based.

STILL NEEDS

Tests!