kotlinx.serialization

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ProtoBuf cannot deserialize the Map from `rs/prost` if its value equals the default value

1

**Describe the bug** For `mutableMapOf("key" to "")`, KotlinX Serialization ProtoBuf encodes both the key and value. Serialization and deserialization are fine. However, in `rs/prost`, because the `value` is equal to...

zhangz1han

Add option to encode only non-null default values in encodeDefaults

9

Currently, encodeDefaults = true writes all default values, while encodeDefaults = false omits all of them. There is no way to include only non-null defaults. ### Motivation In many API...

jschneider

Unable to use custom serializer for Javascript primitive types

5

**Describe the bug** Have certain data classes which need to be de/serialised and contain JS types (primarily BigInt). Added a custom serializer but serialisation always throws a ClassCastException. Happy to...

shikharid

RFC: Allow disabling coercion between JSON primitives

9

Currently, and independent of the `isLenient` option, the JSON decoders will coerce Strings to other primitiv types, allowing e.g. `"true"` to be decoded as `Boolean`. We are currently transitioning from...

pschichtel

Give option to reuse byte[] or add apis supporting ByteBuffer

11

It is absurd to me that people to this day do the exact same mistakes every serialization framework did for 20 years. We know at this point 2 biggest allocation...

vachagan-balayan-bullish

Possibility of having an equivalent of @JsonProperty from Jackson (one-way @Transient)

16

Hello, I was searching in stackoverflow and around but didn't find any answer to my problem. **What is your use-case and why do you need this feature?** Here is my...

yoobi

**Describe the bug** The `type` discriminator field vanishes when I wrap the generated serializer with `JsonTransformingSerializer`. I have a business description of operation that shall be performed. This operation is...

juriad

**Describe the bug** Value classes that implemnet sealed interfaces marked as @Serializable cannot be decoded and will crash. This is because the type of the sealed interface cannot be set...

TBSten

**Describe the bug** When trying to serialize a value class If the ClassDiscriminatorMode is set to `ALL_JSON_OBJECTS` And the value class encapsulates a list Then it seems like the serializer...

ArmureSolide

Polymorphic using both explicit definition and sealed implicit lookup

1

I have a library that exposes the interface `Destination` and an API accepting this `Destination` - I need the library to be able to process all destinations with KotlinX.Serialization. I...

hrach