This commit is contained in:
Tutur33
2023-11-24 23:58:26 +01:00
parent 25395c0ee1
commit 938ad9d309
4191 changed files with 41 additions and 518781 deletions
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root = true
[*]
indent_style = space
indent_size = 4
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
[*.md]
trim_trailing_whitespace = false
[package.json]
indent_size = 2
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{
"predef": [
"console",
"require",
"define",
"describe",
"it",
"before",
"beforeEach",
"after",
"afterEach",
"Promise"
],
"node": true,
"devel": true,
"bitwise": true,
"curly": true,
"eqeqeq": true,
"forin": false,
"immed": true,
"latedef": false,
"newcap": true,
"noarg": true,
"noempty": false,
"nonew": true,
"plusplus": false,
"regexp": true,
"undef": true,
"unused": true,
"quotmark": "single",
"strict": true,
"trailing": true,
"asi": false,
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"debug": false,
"eqnull": true,
"es5": false,
"esnext": false,
"evil": false,
"expr": true,
"funcscope": false,
"globalstrict": false,
"iterator": false,
"lastsemic": false,
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"loopfunc": true,
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"shadow": false,
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"nomen": false,
"onevar": false,
"white": true
}
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language: node_js
node_js:
- "10"
- "12"
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Copyright (c) 2014 IndigoUnited
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
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# node-promise-retry
[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url] [![Greenkeeper badge][greenkeeper-image]][greenkeeper-url]
[npm-url]:https://npmjs.org/package/promise-retry
[downloads-image]:http://img.shields.io/npm/dm/promise-retry.svg
[npm-image]:http://img.shields.io/npm/v/promise-retry.svg
[travis-url]:https://travis-ci.org/IndigoUnited/node-promise-retry
[travis-image]:http://img.shields.io/travis/IndigoUnited/node-promise-retry/master.svg
[david-dm-url]:https://david-dm.org/IndigoUnited/node-promise-retry
[david-dm-image]:https://img.shields.io/david/IndigoUnited/node-promise-retry.svg
[david-dm-dev-url]:https://david-dm.org/IndigoUnited/node-promise-retry?type=dev
[david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/node-promise-retry.svg
[greenkeeper-image]:https://badges.greenkeeper.io/IndigoUnited/node-promise-retry.svg
[greenkeeper-url]:https://greenkeeper.io/
Retries a function that returns a promise, leveraging the power of the [retry](https://github.com/tim-kos/node-retry) module to the promises world.
There's already some modules that are able to retry functions that return promises but
they were rather difficult to use or do not offer an easy way to do conditional retries.
## Installation
`$ npm install promise-retry`
## Usage
### promiseRetry(fn, [options])
Calls `fn` until the returned promise ends up fulfilled or rejected with an error different than
a `retry` error.
The `options` argument is an object which maps to the [retry](https://github.com/tim-kos/node-retry) module options:
- `retries`: The maximum amount of times to retry the operation. Default is `10`.
- `factor`: The exponential factor to use. Default is `2`.
- `minTimeout`: The number of milliseconds before starting the first retry. Default is `1000`.
- `maxTimeout`: The maximum number of milliseconds between two retries. Default is `Infinity`.
- `randomize`: Randomizes the timeouts by multiplying with a factor between `1` to `2`. Default is `false`.
The `fn` function will receive a `retry` function as its first argument that should be called with an error whenever you want to retry `fn`. The `retry` function will always throw an error.
If there are retries left, it will throw a special `retry` error that will be handled internally to call `fn` again.
If there are no retries left, it will throw the actual error passed to it.
If you prefer, you can pass the options first using the alternative function signature `promiseRetry([options], fn)`.
## Example
```js
var promiseRetry = require('promise-retry');
// Simple example
promiseRetry(function (retry, number) {
console.log('attempt number', number);
return doSomething()
.catch(retry);
})
.then(function (value) {
// ..
}, function (err) {
// ..
});
// Conditional example
promiseRetry(function (retry, number) {
console.log('attempt number', number);
return doSomething()
.catch(function (err) {
if (err.code === 'ETIMEDOUT') {
retry(err);
}
throw err;
});
})
.then(function (value) {
// ..
}, function (err) {
// ..
});
```
## Tests
`$ npm test`
## License
Released under the [MIT License](http://www.opensource.org/licenses/mit-license.php).
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'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;
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{
"name": "promise-retry",
"version": "2.0.1",
"description": "Retries a function that returns a promise, leveraging the power of the retry module.",
"main": "index.js",
"scripts": {
"test": "mocha --bail -t 10000"
},
"bugs": {
"url": "https://github.com/IndigoUnited/node-promise-retry/issues/"
},
"repository": {
"type": "git",
"url": "git://github.com/IndigoUnited/node-promise-retry.git"
},
"keywords": [
"retry",
"promise",
"backoff",
"repeat",
"replay"
],
"author": "IndigoUnited <hello@indigounited.com> (http://indigounited.com)",
"license": "MIT",
"devDependencies": {
"expect.js": "^0.3.1",
"mocha": "^8.0.1",
"sleep-promise": "^8.0.1"
},
"dependencies": {
"err-code": "^2.0.2",
"retry": "^0.12.0"
},
"engines": {
"node": ">=10"
}
}