// TODO: import from ES6 when retry typing file will include errorFilter function
-import retry = require('async/retry')
+import * as retry from 'async/retry'
+import * as Promise from 'bluebird'
-const db = require('../initializers/database')
import { logger } from './logger'
-function commitTransaction (t, callback) {
- return t.commit().asCallback(callback)
-}
-
-function rollbackTransaction (err, t, callback) {
- // Try to rollback transaction
- if (t) {
- // Do not catch err, report the original one
- t.rollback().asCallback(function () {
- return callback(err)
- })
- } else {
- return callback(err)
- }
-}
-
-// { arguments, errorMessage }
-function retryTransactionWrapper (functionToRetry, options, finalCallback) {
+type RetryTransactionWrapperOptions = { errorMessage: string, arguments?: any[] }
+function retryTransactionWrapper (functionToRetry: (... args) => Promise<any>, options: RetryTransactionWrapperOptions) {
const args = options.arguments ? options.arguments : []
- transactionRetryer(
- function (callback) {
- return functionToRetry.apply(this, args.concat([ callback ]))
- },
- function (err) {
- if (err) {
- logger.error(options.errorMessage, { error: err })
- }
-
- // Do not return the error, continue the process
- return finalCallback(null)
- }
- )
+ return transactionRetryer(callback => {
+ functionToRetry.apply(this, args)
+ .then(result => callback(null, result))
+ .catch(err => callback(err))
+ })
+ .catch(err => {
+ // Do not throw the error, continue the process
+ logger.error(options.errorMessage, err)
+ })
}
-function transactionRetryer (func, callback) {
- retry({
- times: 5,
+function transactionRetryer (func: Function) {
+ return new Promise((res, rej) => {
+ retry({
+ times: 5,
- errorFilter: function (err) {
- const willRetry = (err.name === 'SequelizeDatabaseError')
- logger.debug('Maybe retrying the transaction function.', { willRetry })
- return willRetry
- }
- }, func, callback)
-}
-
-function startSerializableTransaction (callback) {
- db.sequelize.transaction({ isolationLevel: 'SERIALIZABLE' }).asCallback(function (err, t) {
- // We force to return only two parameters
- return callback(err, t)
+ errorFilter: err => {
+ const willRetry = (err.name === 'SequelizeDatabaseError')
+ logger.debug('Maybe retrying the transaction function.', { willRetry })
+ return willRetry
+ }
+ }, func, err => err ? rej(err) : res())
})
}
// ---------------------------------------------------------------------------
export {
- commitTransaction,
retryTransactionWrapper,
- rollbackTransaction,
- startSerializableTransaction,
transactionRetryer
}