pouchdb-browser in SharedWorker

[egorovd]

Issue

Error start 'pouchdb-browser' in SharedWorker

Info

• Environment: browser
• Platform: Chrome
• Adapter: indexeddb
• Server: none

Reproduce

I tried to run the 'pouchdb-browser' in the browser and nothing worked:

pnpm install --save pouchdb-browser
pnpm i --save-dev @types/pouchdb-browser

in SharedWorker

import PouchDB from 'pouchdb-browser'

const = new PouchDB('test')

Can this be somehow fixed or resolved?
Thank you.

[SourceR85]

pouchdb-browser currently supports main-thread only (need foundational changes to run in a worker scope).

[garethbowen]

@egorovd There is a community supported package for running in workers: https://github.com/pouchdb-community/worker-pouch . Note that it's very old so may not work, but it's reasonably simple.

I used to use it many years ago and it made the main thread noticeably more responsive (eg: UI), however the big downside was moving all the data between the pouch thread and the main thread. The serialization cost ended up being worse than just doing everything in one thread. It would be good for something that does a lot of db access and number crunching without necessarily returning everything to the UI. Alternatively using SharedArrayBuffer may solve the problem.