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Commit | Line | Data |
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1 | import * as retry from 'async/retry' | |
2 | import * as Bluebird from 'bluebird' | |
3 | import { Model } from 'sequelize-typescript' | |
4 | import { logger } from './logger' | |
5 | import { Transaction } from 'sequelize' | |
6 | ||
7 | function retryTransactionWrapper <T, A, B, C> ( | |
8 | functionToRetry: (arg1: A, arg2: B, arg3: C) => Promise<T> | Bluebird<T>, | |
9 | arg1: A, | |
10 | arg2: B, | |
11 | arg3: C | |
12 | ): Promise<T> | |
13 | ||
14 | function retryTransactionWrapper <T, A, B> ( | |
15 | functionToRetry: (arg1: A, arg2: B) => Promise<T> | Bluebird<T>, | |
16 | arg1: A, | |
17 | arg2: B | |
18 | ): Promise<T> | |
19 | ||
20 | function retryTransactionWrapper <T, A> ( | |
21 | functionToRetry: (arg1: A) => Promise<T> | Bluebird<T>, | |
22 | arg1: A | |
23 | ): Promise<T> | |
24 | ||
25 | function retryTransactionWrapper <T> ( | |
26 | functionToRetry: () => Promise<T> | Bluebird<T> | |
27 | ): Promise<T> | |
28 | ||
29 | function retryTransactionWrapper <T> ( | |
30 | functionToRetry: (...args: any[]) => Promise<T> | Bluebird<T>, | |
31 | ...args: any[] | |
32 | ): Promise<T> { | |
33 | return transactionRetryer<T>(callback => { | |
34 | functionToRetry.apply(null, args) | |
35 | .then((result: T) => callback(null, result)) | |
36 | .catch(err => callback(err)) | |
37 | }) | |
38 | .catch(err => { | |
39 | logger.error(`Cannot execute ${functionToRetry.name} with many retries.`, { err }) | |
40 | throw err | |
41 | }) | |
42 | } | |
43 | ||
44 | function transactionRetryer <T> (func: (err: any, data: T) => any) { | |
45 | return new Promise<T>((res, rej) => { | |
46 | retry( | |
47 | { | |
48 | times: 5, | |
49 | ||
50 | errorFilter: err => { | |
51 | const willRetry = (err.name === 'SequelizeDatabaseError') | |
52 | logger.debug('Maybe retrying the transaction function.', { willRetry, err }) | |
53 | return willRetry | |
54 | } | |
55 | }, | |
56 | func, | |
57 | (err, data) => err ? rej(err) : res(data) | |
58 | ) | |
59 | }) | |
60 | } | |
61 | ||
62 | function updateInstanceWithAnother <T extends Model<T>> (instanceToUpdate: Model<T>, baseInstance: Model<T>) { | |
63 | const obj = baseInstance.toJSON() | |
64 | ||
65 | for (const key of Object.keys(obj)) { | |
66 | instanceToUpdate[key] = obj[key] | |
67 | } | |
68 | } | |
69 | ||
70 | function resetSequelizeInstance (instance: Model<any>, savedFields: object) { | |
71 | Object.keys(savedFields).forEach(key => { | |
72 | instance[key] = savedFields[key] | |
73 | }) | |
74 | } | |
75 | ||
76 | function afterCommitIfTransaction (t: Transaction, fn: Function) { | |
77 | if (t) return t.afterCommit(() => fn()) | |
78 | ||
79 | return fn() | |
80 | } | |
81 | ||
82 | // --------------------------------------------------------------------------- | |
83 | ||
84 | export { | |
85 | resetSequelizeInstance, | |
86 | retryTransactionWrapper, | |
87 | transactionRetryer, | |
88 | updateInstanceWithAnother, | |
89 | afterCommitIfTransaction | |
90 | } |