OkHttp

Dependencies

implementation("com.squareup.okhttp3:okhttp:4.9.3")

Basic Usage

val client = OkHttpClient()

Use withContext(Dispatchers.IO) to perform the request in background

Create a request

val request = Request.Builder().url("<url>").build()

Get the response

val response = client.newCall(request).execute()
val body = call.body?.string()?: return@withContext emptyList<MusicList>()

Parse to JSON with Gson

val gson = Gson()
val listType = object : TypeToken<List<MusicList>>() {}.type
gson.fromJson(res, listType)

Simple Example

var data by remember { mutableStateOf<List<Music>>(emptyList()) }

withContext(Dispatchers.IO) {
    val client = OkHttpClient()
    val request = Request.Builder()
        .url("https://skills-music-api.eliaschen.dev/music")
        .build()
    data = client.newCall(request).execute().use { response ->
        Gson().fromJson(response.body?.string(), object : TypeToken<List<Music>>() {}.type)
    }
}

Example with Exception Handling

data class MusicList(
    val title: String,
    val url: String
)

val gson = Gson()
val client = OkHttpClient()

suspend fun fetchUrl(): List<MusicList> {
    return withContext(Dispatchers.IO) {
        try {
            val request = Request.Builder().url("$host/music").build()
            val call = client.newCall(request).execute()
            if (call.isSuccessful) {
                val res = call.body?.string() ?: return@withContext emptyList<MusicList>()
                val listType = object : TypeToken<List<MusicList>>() {}.type
                gson.fromJson(res, listType)
            } else {
                emptyList<MusicList>()
            }
        } catch (e: Exception) {
            emptyList<MusicList>()
        }
    }
}