'Proguard rules for Moshi models?

I have an Android app (Java) that uses Moshi 1.11.0 to work with JSON responses. Take this model as an example:

class Payments {
    public float amount;
    public int month, year;
}

When developing (and running debug variant), everything works perfectly. However, when building a release version, Proguard makes all properties become 0 when trying to read them from my model. (payment.amount, payment.month, payment.year are all 0).

So far, the only thing that has fixed this is by prepending the @Keep annotation before each and every one of my model declarations:

@Keep
class Payments {...}

My question is.. Is there any other workaround that would fix this issue, without having to modify each and every one of my models?

javaandroidandroid-studioproguardmoshi


Solution 1:[1]

I found these keep rules online, can you try to add them to your configuration and see if that solves your problem (without manually adding the @keep annotations to your models)?

https://github.com/square/moshi/blob/master/moshi/src/main/resources/META-INF/proguard/moshi.pro

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Edevont

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