77 lines
2.5 KiB
JavaScript
77 lines
2.5 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = retryable;
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var _retry = require('./retry');
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var _retry2 = _interopRequireDefault(_retry);
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var _initialParams = require('./internal/initialParams');
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var _initialParams2 = _interopRequireDefault(_initialParams);
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var _wrapAsync = require('./internal/wrapAsync');
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var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
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var _promiseCallback = require('./internal/promiseCallback');
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* A close relative of [`retry`]{@link module:ControlFlow.retry}. This method
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* wraps a task and makes it retryable, rather than immediately calling it
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* with retries.
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*
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* @name retryable
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* @static
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* @memberOf module:ControlFlow
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* @method
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* @see [async.retry]{@link module:ControlFlow.retry}
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* @category Control Flow
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* @param {Object|number} [opts = {times: 5, interval: 0}| 5] - optional
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* options, exactly the same as from `retry`, except for a `opts.arity` that
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* is the arity of the `task` function, defaulting to `task.length`
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* @param {AsyncFunction} task - the asynchronous function to wrap.
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* This function will be passed any arguments passed to the returned wrapper.
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* Invoked with (...args, callback).
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* @returns {AsyncFunction} The wrapped function, which when invoked, will
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* retry on an error, based on the parameters specified in `opts`.
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* This function will accept the same parameters as `task`.
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* @example
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*
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* async.auto({
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* dep1: async.retryable(3, getFromFlakyService),
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* process: ["dep1", async.retryable(3, function (results, cb) {
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* maybeProcessData(results.dep1, cb);
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* })]
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* }, callback);
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*/
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function retryable(opts, task) {
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if (!task) {
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task = opts;
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opts = null;
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}
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let arity = opts && opts.arity || task.length;
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if ((0, _wrapAsync.isAsync)(task)) {
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arity += 1;
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}
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var _task = (0, _wrapAsync2.default)(task);
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return (0, _initialParams2.default)((args, callback) => {
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if (args.length < arity - 1 || callback == null) {
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args.push(callback);
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callback = (0, _promiseCallback.promiseCallback)();
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}
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function taskFn(cb) {
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_task(...args, cb);
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}
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if (opts) (0, _retry2.default)(opts, taskFn, callback);else (0, _retry2.default)(taskFn, callback);
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return callback[_promiseCallback.PROMISE_SYMBOL];
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});
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}
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module.exports = exports['default'];
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