+function retryTransactionWrapper <T, A, B, C, D> (
+ functionToRetry: (arg1: A, arg2: B, arg3: C, arg4: D) => Promise<T>,
+ arg1: A,
+ arg2: B,
+ arg3: C,
+ arg4: D,
+): Promise<T>
+
+function retryTransactionWrapper <T, A, B, C> (
+ functionToRetry: (arg1: A, arg2: B, arg3: C) => Promise<T>,
+ arg1: A,
+ arg2: B,
+ arg3: C
+): Promise<T>
+
+function retryTransactionWrapper <T, A, B> (
+ functionToRetry: (arg1: A, arg2: B) => Promise<T>,
+ arg1: A,
+ arg2: B
+): Promise<T>
+
+function retryTransactionWrapper <T, A> (
+ functionToRetry: (arg1: A) => Promise<T>,
+ arg1: A
+): Promise<T>
+
+function retryTransactionWrapper <T> (
+ functionToRetry: () => Promise<T> | Bluebird<T>
+): Promise<T>
+
+function retryTransactionWrapper <T> (
+ functionToRetry: (...args: any[]) => Promise<T>,
+ ...args: any[]
+): Promise<T> {
+ return transactionRetryer<T>(callback => {
+ functionToRetry.apply(null, args)
+ .then((result: T) => callback(null, result))
+ .catch(err => callback(err))
+ })
+ .catch(err => {
+ logger.error(`Cannot execute ${functionToRetry.name} with many retries.`, { err })
+ throw err
+ })
+}
+
+function transactionRetryer <T> (func: (err: any, data: T) => any) {
+ return new Promise<T>((res, rej) => {
+ retry(
+ {
+ times: 5,
+
+ errorFilter: err => {
+ const willRetry = (err.name === 'SequelizeDatabaseError')
+ logger.debug('Maybe retrying the transaction function.', { willRetry, err, tags: [ 'sql', 'retry' ] })
+ return willRetry
+ }
+ },
+ func,
+ (err, data) => err ? rej(err) : res(data)
+ )
+ })