Zhentiw - 博客园

2021年8月7日

摘要： SAA SNS can publish messages to the following endpoints: HTTP(S) SQS Lambda mobile push emails SMS SNS also has FIFO Only target can be used is SQS Ca 阅读全文

posted @ 2021-08-07 15:52 Zhentiw 阅读(71) 评论(0) 推荐(0)

[SAA + SAP] 21. SQS

摘要： SAA Max retention days 14 days Max size 256 KB Cross Account Access S3 push notification MaximumReceive API Set threshold Request Queue Response Queue 阅读全文

posted @ 2021-08-07 15:49 Zhentiw 阅读(304) 评论(0) 推荐(0)

2021年8月5日

[Unit Testing + Jest + Node server] Testing a Node middleware with Jest

摘要： Code: import {UnauthorizedError} from 'express-jwt' function errorMiddleware(error, req, res, next) { if (res.headersSent) { next(error) } else if (er 阅读全文

posted @ 2021-08-05 20:58 Zhentiw 阅读(108) 评论(0) 推荐(0)

[Unit testing + Jest] Use jest-in-case to Reduce Duplication and Improve Test Titles

摘要： Jest has a test-generation feature built-in called test.each which is great, but I don’t particularly like it’s API. Instead, we’re going to use an op 阅读全文

posted @ 2021-08-05 18:51 Zhentiw 阅读(76) 评论(0) 推荐(0)

[Unit testing] Improve Error Messages by Generating Test Titles

摘要： One of the most crucial things you can do when writing tests is ensuring that the error message explains the problem as clearly as possible so it can 阅读全文

posted @ 2021-08-05 18:41 Zhentiw 阅读(56) 评论(0) 推荐(0)

[Typescript] Extends and override an existing interface

摘要： For example, you have an object `A`, you want to extend it and modify some prop; then create a new interface B: export interface B extends Omit<A, 'x' 阅读全文

posted @ 2021-08-05 17:58 Zhentiw 阅读(119) 评论(0) 推荐(0)

[SAA + SAP] 20. Other services - 1 (StackSets, EMR, SWF, Opsworks, WorkSpaces)

摘要： SAA Here's a quick cheat-sheet to remember all these services: EMR (Elastic Map Reduce): Big Data / Hadoop / Spark clusters on AWS, deployed on EC2 fo 阅读全文

posted @ 2021-08-05 01:52 Zhentiw 阅读(100) 评论(0) 推荐(0)

2021年8月4日

[SAA + SAP] 19. Database & Redshfit

摘要： ETL: Extra data from S3 or RDS Transform data in Glue Load data into RedShift, or other Data Warehouse Craw the data Search for any field Partially ma 阅读全文

posted @ 2021-08-04 16:09 Zhentiw 阅读(101) 评论(0) 推荐(0)

[SAA + SAP] 18. Architecture Discussions - 1

摘要： Case 1: WhatIsTheTime.com Simple start Use T2 instance EIP to public access CONS: When more people come to your website, T2 instance is not enough to 阅读全文

posted @ 2021-08-04 13:53 Zhentiw 阅读(104) 评论(0) 推荐(0)

2021年8月3日

[SAA + SAP] 17. RDS - Aurora

摘要： Faster than MySQL... Postgres Failover faster CRR: entire database is copied (not select tables) Load / Offload data directly from / to S3: efficient 阅读全文

posted @ 2021-08-03 02:15 Zhentiw 阅读(138) 评论(0) 推荐(0)

Answer1215

公告