PeerTube/server/helpers/database-utils.ts

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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'
import * as Promise from 'bluebird'
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import { logger } from './logger'
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type RetryTransactionWrapperOptions = { errorMessage: string, arguments?: any[] }
function retryTransactionWrapper (functionToRetry: (... args) => Promise<any>, options: RetryTransactionWrapperOptions) {
const args = options.arguments ? options.arguments : []
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return transactionRetryer(callback => {
functionToRetry.apply(this, args)
.then(result => callback(null, result))
.catch(err => callback(err))
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})
.catch(err => {
// Do not throw the error, continue the process
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logger.error(options.errorMessage, err)
})
}
function transactionRetryer (func: Function) {
return new Promise((res, rej) => {
retry({
times: 5,
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errorFilter: err => {
const willRetry = (err.name === 'SequelizeDatabaseError')
logger.debug('Maybe retrying the transaction function.', { willRetry })
return willRetry
}
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}, func, err => err ? rej(err) : res())
})
}
// ---------------------------------------------------------------------------
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export {
retryTransactionWrapper,
transactionRetryer
}