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