Hello everyone! Is there an option to force keys t...

# serialization

[Riccardo Montagnin]

Hello everyone! Is there an option to force keys to be sorted alphabetically before the serialization?

[ribesg]

Object keys don’t have any order in json

[Riccardo Montagnin]

I know that, that's why I'm asking if there is a way to ensure they are alphabetically ordered

[Riccardo Montagnin]

When dealing with hashing and other cryptographic operations this is important 😁

[ribesg]

Hashing json strings is wrong by definition

[ribesg]

I guess making your own custom serializers for every single model isn’t a solution right

[Riccardo Montagnin]

I'm not trying to hash the JSON data, but converting it into a bytearray and then hashing it.

A custom serializer could be a solution, yeah

[ribesg]

Then just use toString() on the data class and hash that?

[Riccardo Montagnin]

They would not return the same thing. Having to deal with a set of API that I cannot change, I need to get the JSON object with the keys alphabetically sorted, convert it to a byte array and then hash it.

[ribesg]

I see. Do you need to use kotlinx.serialization?

[Riccardo Montagnin]

Yeah, I'm creating a multiplatform project

[ribesg]

Ok. Then the solution will be hacky. Custom serializers are the first thing I think about, but depending on the amount of models we’re talking about, it may not be the best idea

[sandwwraith]

Well, you can convert data class to JsonObject with toJson method first and then sort keys in map.

[Riccardo Montagnin]

@sandwwraith How would I do it? Do you have some example code?

[sandwwraith]

@Riccardo Montagnin Just use toJson instead of stringify. You will get JsonElement, checkcast it to JsonObject which is a usual map under the hood.

[Riccardo Montagnin]

ok thank you