diff options
Diffstat (limited to 'app/assets/javascripts/lib/utils/simple_poll.js')
-rw-r--r-- | app/assets/javascripts/lib/utils/simple_poll.js | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/app/assets/javascripts/lib/utils/simple_poll.js b/app/assets/javascripts/lib/utils/simple_poll.js new file mode 100644 index 00000000000..25ca98afbe7 --- /dev/null +++ b/app/assets/javascripts/lib/utils/simple_poll.js @@ -0,0 +1,15 @@ +export default (fn, interval = 2000, timeout = 60000) => { + const startTime = Date.now(); + + return new Promise((resolve, reject) => { + const stop = arg => ((arg instanceof Error) ? reject(arg) : resolve(arg)); + const next = () => { + if (Date.now() - startTime < timeout) { + setTimeout(fn.bind(null, next, stop), interval); + } else { + reject(new Error('SIMPLE_POLL_TIMEOUT')); + } + }; + fn(next, stop); + }); +}; |