pg-mem VS Lowdb

I've used pgmem https://github.com/oguimbal/pg-mem for the last couple of years for the same thing.

I was wondering the other day how to classify tests that use a test double like pg-mem, which isn't a mock but isn't the Dockerized test DB either :

https://github.com/oguimbal/pg-mem

In my case, I use TypeORM with PostgreSQL, and there's pg-mem to run an instance in memory, it supports most of the common functionality of PostgreSQL but you will need to do some adjustment to your code to be within the limits.

Postgres in the browser is possible through pg-mem: "pg-mem is an experimental in-memory emulation of a postgres database" but it also suffers from no persistence. If you can persist to a file somewhere then read it in on startup (and if your local data isn't huge) this might work.

Dont get me wrong: I am trying to contribute to opensource as well, so I get that supporting small projects can be demanding. There's nothing wrong in not spending your weekends on OS. But not asking for help, nor specifying that a project is unmaintained, nor even answering issues & pull requests for years feels just wrong.

A pure Javascript in memory emulation of Posgres, to help writing better node tests https://github.com/oguimbal/pg-mem

Okay, I had a bit of spare time,I've implemented that, and it is now available with [email protected]

To get a glimpse of what I'm talking about, you can clone this repo and follow "Development" instructions (by the way this is a small OS lib I maintain, I wrote about it here)

https://github.com/typicode/lowdb is a cool option.

I just finished the first stable version of go-store, a lightweight embeeded database written in pure Go. It was heavily inspired by lowdb. The motivation was that I needed something simple to store information for another project and that I wanted to try out Go's generics.

https://jsondb.io/ or https://github.com/typicode/lowdb

By default, requests are stored locally in a JSON file with the help of LowDB.

For 1: Don't.* For 2: You're looking for a cache. I've published an OS npm module. Looking at the code might help: https://github.com/tq-bit/qache/blob/master/src/Cache.ts For 3: Maybe the code of lowdb can point you in the right direction: https://github.com/typicode/lowdb/tree/main/src

Another thing you might consider is literally using the filesystem as a database. There are plenty of vanillla ways to simply read/write to JSON or you could even use a JSON based db github.com/typicode/lowdb again you don't need to think about it as a db your just handling JS objects.

I did want something performant so that I would (hopefully) not run into issues when there are around 100-ish clients connected at the same time. I looked at low-db for a while but did not like that it would JSON.stringify my whole database on every change, which could become a problem when it becomes to big.