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					41 lines
				
				888 B
			
		
		
			
		
	
	
					41 lines
				
				888 B
			| 
											2 years ago
										 | var retry = require('../lib/retry'); | ||
|  | 
 | ||
|  | function attemptAsyncOperation(someInput, cb) { | ||
|  |   var opts = { | ||
|  |     retries: 2, | ||
|  |     factor: 2, | ||
|  |     minTimeout: 1 * 1000, | ||
|  |     maxTimeout: 2 * 1000, | ||
|  |     randomize: true | ||
|  |   }; | ||
|  |   var operation = retry.operation(opts); | ||
|  | 
 | ||
|  |   operation.attempt(function(currentAttempt) { | ||
|  |     failingAsyncOperation(someInput, function(err, result) { | ||
|  | 
 | ||
|  |       if (err && err.message === 'A fatal error') { | ||
|  |         operation.stop(); | ||
|  |         return cb(err); | ||
|  |       } | ||
|  | 
 | ||
|  |       if (operation.retry(err)) { | ||
|  |         return; | ||
|  |       } | ||
|  | 
 | ||
|  |       cb(operation.mainError(), operation.errors(), result); | ||
|  |     }); | ||
|  |   }); | ||
|  | } | ||
|  | 
 | ||
|  | attemptAsyncOperation('test input', function(err, errors, result) { | ||
|  |   console.warn('err:'); | ||
|  |   console.log(err); | ||
|  | 
 | ||
|  |   console.warn('result:'); | ||
|  |   console.log(result); | ||
|  | }); | ||
|  | 
 | ||
|  | function failingAsyncOperation(input, cb) { | ||
|  |   return setImmediate(cb.bind(null, new Error('A fatal error'))); | ||
|  | } |