Hi can anyone help we with kotlin deserialization?...

# serialization

[Yaniv Sosnovsky]

Hi can anyone help we with kotlin deserialization? I’m using retrofit with kotlinx serialization and I have a case where I can get 2 types of responses from the server:
the first case returns a list of results with “drinks” key,
{"drinks":[{"strDrink":"Jelly Bean","strDrinkThumb":"https:\/\/<http://www.thecocktaildb.com|www.thecocktaildb.com>\/images\/media\/drink\/bglc6y1504388797.jpg","idDrink":"13775"},{"strDrink":"Turf Cocktail","strDrinkThumb":"https:\/\/<http://www.thecocktaildb.com|www.thecocktaildb.com>\/images\/media\/drink\/utypqq1441554367.jpg","idDrink":"12418"}]}

but sometimes the server returns the following:

"{"drinks":"None Found"}"

Before using kotlinx I had a custom type convertor with Gson, and that worked fine, but I’m struggling with kotlin.
I tried to create a KSerializer to try to parse the result, and return an object with an empty list if an exception is thrown, but I keep getting this exception:
java.lang.IllegalStateException: Reader has not consumed the whole input: JsonReader(source='{"drinks":"None Found"}', currentPosition=22, tokenClass=1, tokenPosition=10, offset=11)

Any ideas how to solve this? I can always return a string instead of a data class, but this is ugly AF

[ephemient]

as I said in the other thread, you can use https://github.com/Kotlin/kotlinx.serialization/blob/master/docs/json.md#content-based-polymorphic-deserialization

[ephemient]

Untitled.kt

[Yaniv Sosnovsky]

Thanks! sorry for the copy/paste, I’ll check it out

[Yaniv Sosnovsky]

@ephemient Looks good! thanks!