Hi, I’m running (probably a few months later than everyone lol) into the notorious “Hashmaps can’t be stable” issue. Like many, I’d love to avoid having to manage pre/post upgrade scripts, so I’m looking into using @ZhenyaUsenko ’s motoko-hash-map . (if anyone thinks it’s not the best decision, ple…

It’s pretty easy to get started with mops! I’d say to give it a shot [image] Quick Start | Mops Docs 1. Prerequisites

I know I’ve used it before somewhere, but give it a shot just using the docs! If you want the map to be stable, you will need all of the fields to use stable types, so you may want to switch to a Map across the board. Try using it in a simple example first to get a sense of it and if you like i…

It was published to mops quite a while ago Mops • Motoko Package Manager The detailed documentation is there, but if you have any questions, feel free to ask. [image] marcpp: I currently have Hashmaps in my main Hashmap. Do I have to use the library for all of them or only for the main (outter…

Hello Zhenya, do you have any resources about examples for this?

The stable hashmap issue

Developers Motoko

marcpp June 20, 2024, 5:36pm 3

Oh sorry I didn’t realize it was now a mops package (relied on this old comment). Great! Thanks @anon74414410

Any clues for the other questions?

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Stable HashMap without need for an upgrade func Language Support Motoko	16	2325	May 18, 2025
Stable variable Motoko	1	163	April 8, 2024
How to maintain nested hashmaps as stable Language Support Motoko	13	1714	July 13, 2022
Developers documentation best Map/DB Motoko practices Motoko	2	114	October 9, 2024
Clarification on Stable Types with Examples Language Support Motoko	8	2323	July 8, 2022

The stable hashmap issue

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