Kotlin Type mismatch: inferred type is String but Unit was expected

Dollan 0
Viewed 36

Im trying to get the return result to return a string, I believe this might be a noob question but I'm very new to kotlin so please don't be harsh. All solutions welcome!

private val client = OkHttpClient()

    fun getRequest(id: String) {
        val url = "http://localhost:8000/api/v1/discord?discordid=$id"
        val request = Request.Builder()
            .url(url)
            .header("User-Agent", "OkHttp Bot")
            .build()

        client.newCall(request).enqueue(object : Callback {
            override fun onFailure(call: Call, e: IOException) {
                println("Error: ${e.message}")
            }

            override fun onResponse(call: Call, response: Response) {
                response.use {
                    if (!response.isSuccessful) throw IOException("Unexpected code $response")
                    var result = response.body!!.string()
                    return result

                }
            }
        })
}
okhttp api kotlin
1 Answers

onResponse function has no return type. If you trying to return some value it will throw some error. So if you want do somthing with the response, you can create a method and pass response body as paramter and do anything with that.

 override fun onResponse(call: Call, response: Response) {
                response.use {
                    if (!response.isSuccessful) throw IOException("Unexpected code $response")
                    
                    var result = response.body?.string()?:""
                    someMethod(result)
                }
            }


fun someMethod(response:String){
//Update UI here
}
Gowtham K K0
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