41 lines
888 B
JavaScript
41 lines
888 B
JavaScript
|
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')));
|
||
|
|
}
|