Hi everyone! I'm trying to understand how to receive a JSON response without parsing it a Kotlin obj...

# ktor

[Edoardo Luppi]

Hi everyone!
I'm trying to understand how to receive a JSON response without parsing it a Kotlin object (e.g. I need a pure JSONObject)
However all I can find is about serialization and de-serializazion to objects.
Any link on documentation that describes how to do what I need?

[Big Chungus]

call.receive<JsonObject>()

[Edoardo Luppi]

@Big Chungus that means I need

implementation("io.ktor:ktor-client-serialization:1.6.4")
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.0")

as dependencies too, right?

[Big Chungus]

Yes, you can do that with other json engines too if you want. E.g. gson or jackson

[Edoardo Luppi]

@Big Chungus thanks! Tho I think the only multiplatform-capable is the kotlinx one

[Big Chungus]

You can also get plain json string without those deps via call.receive<String>()

[Edoardo Luppi]

@Big Chungus and then I can parse them with whatever I want.
Although it adds another processing step instead of reading directly from the HTTP output buffer

[Big Chungus]

Yes. For js you could get the string and use native JSON.parse()

[Big Chungus]

You can also receive http output buffer instead of string

[Edoardo Luppi]

@Big Chungus thanks. Last question regarding JsonElement. It seems the API is pretty simple compared to what other frameworks I'm used to offer (e.g. Unirest, Gson). For example, to get a string value, one has to use

json[key]!!.jsonPrimitive.content

instead of a simple

json.getString(key)

Are there wrappers for this, or do I have to implement my extension functions?

[Big Chungus]

You can play around with KON which is built on top of simple Map<String, Any?>

[Big Chungus]

kobj(call.receive<KON>()){
// do stuff
}

[Big Chungus]

Or even call.receive<JsonObject>().toKobj().apply {}

[Edoardo Luppi]

@Big Chungus thanks, will give it a try!