53 lines
1.3 KiB
JavaScript
53 lines
1.3 KiB
JavaScript
'use strict';
|
|
|
|
var errcode = require('err-code');
|
|
var retry = require('retry');
|
|
|
|
var hasOwn = Object.prototype.hasOwnProperty;
|
|
|
|
function isRetryError(err) {
|
|
return err && err.code === 'EPROMISERETRY' && hasOwn.call(err, 'retried');
|
|
}
|
|
|
|
function promiseRetry(fn, options) {
|
|
var temp;
|
|
var operation;
|
|
|
|
if (typeof fn === 'object' && typeof options === 'function') {
|
|
// Swap options and fn when using alternate signature (options, fn)
|
|
temp = options;
|
|
options = fn;
|
|
fn = temp;
|
|
}
|
|
|
|
operation = retry.operation(options);
|
|
|
|
return new Promise(function (resolve, reject) {
|
|
operation.attempt(function (number) {
|
|
Promise.resolve()
|
|
.then(function () {
|
|
return fn(function (err) {
|
|
if (isRetryError(err)) {
|
|
err = err.retried;
|
|
}
|
|
|
|
throw errcode(new Error('Retrying'), 'EPROMISERETRY', { retried: err });
|
|
}, number);
|
|
})
|
|
.then(resolve, function (err) {
|
|
if (isRetryError(err)) {
|
|
err = err.retried;
|
|
|
|
if (operation.retry(err || new Error())) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
reject(err);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
module.exports = promiseRetry;
|