The backend implementation should remeber the pattern passed via Gaimon.patternFromData

[liplum]

Since the pattern might be frequently played, for example, in a game, I'm concerned about the performance impact of always transfering and transforming a large json string.

[istornz]

Thanks for raising an issue, for now it's not supported but must be a great addition to the plugin!

[liplum]

IMHO, giving every passed pattern an ID would do the trick.
for example:

await Gaimon.cachePattern(id, json);
await Gaimon.patternById(id);