How can I parse my json file from asset in kotlin? - json

Question

How can I parse my json file in kotlin. There are many solution for this on the internet but all of them are same however I couldnt find to parse my json file in kotlin.
my json file
{
"A": [
{
"collocation": "above average",
"meaning": "more than average, esp. in amount, age, height, weight etc. "
},
{
"collocation": "absolutely necessary",
"meaning": "totally or completely necessary"
},
{
"collocation": "abuse drugs",
"meaning": "to use drugs in a way that's harmful to yourself or others"
},
{
"collocation": "abuse of power",
"meaning": "the harmful or unethical use of power"
}
],
"B": [
{
"collocation": "back pay",
"meaning": "money a worker earned in the past but hasn't been paid yet "
},
{
"collocation": "back road",
"meaning": "a small country road "
},
{
"collocation": "back street",
"meaning": "a street in a town or city that's away from major roads or central areas"
},
{
"collocation": "back taxes",
"meaning": "taxes that weren't paid when they were due"
},
{
"collocation": "bad breath",
"meaning": "breath that doesn't smell nice"
}],
this way it goes up to the letter W.
I want to parse them all by letter.
my data classes
data class Collocations(
val tag:String,
val collocation: List<Collocation>
)
data class Collocation(
val collocation: String,
val meaning: String
)
But I think these data classes are not correct in my opinion or not effective.

Answer 1

You should just need the Collocation class that you provided here. Then the top-level object could be a Map<String, List<Collocation>> so that the letters are dynamic keys instead.
Using Kotlinx Serialization, it could look like this:
import kotlinx.serialization.Serializable
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.json.Json
#Serializable
data class Collocation(
val collocation: String,
val meaning: String,
)
fun main() {
val json: String = TODO("get your JSON string here")
val collocations = Json.decodeFromString<Map<String, List<Collocation>>>(json)
val collocationsForA = collocations["A"]
println(collocationsForA)
}