upload audio file with binary body with retrofit

Question

I need to upload audio file with binary body with retrofit like the image bellow in postman:

how can i upload audio file with binary body like the image with retrofit?

This is what I did but its not work:

@Multipart
@POST("upload")
fun uploadAudio(
    @Part audio_file: MultipartBody.Part
): Call<ModelGetAudioUrl>

And this is how I prepare audio file for multipartbody.Part:

Answer 1

I solve it by using okhttp:

val client = OkHttpClient().newBuilder()
        .callTimeout(90, TimeUnit.SECONDS)
        .readTimeout(90, TimeUnit.SECONDS)
        .connectTimeout(90, TimeUnit.SECONDS)
        .writeTimeout(90, TimeUnit.SECONDS)
        .build();
    val mediaType = "audio/wave".toMediaTypeOrNull();
    val body = RequestBody.create(mediaType, soundFile)
    val request = Request.Builder()
        .url("https://api.assemblyai.com/v2/upload")
        .method("POST", body)
        .addHeader("authorization", "99fa2a59e27e4688b9f7edcdc8ed7185")
        .addHeader("Transfer-Encoding", "chunked")
        .addHeader("Content-Type", "audio/wave")
        .build()

    Thread {

        try {


            val response = client.newCall(request).execute().use {

                if (it.isSuccessful) {

                    val str = it.body?.string()

                    if (!str.isNullOrEmpty()) {

                        val json = JSONObject(str)

                        sendUrlToTranscript(json.getString("upload_url"))

                    }

                }

                context.runOnUiThread {

                    if (!it.isSuccessful) {

                        loading.hideDialog()

                    }

                }

            }

        }catch (e: Exception) {

            e.printStackTrace()
            Log.d("uploadAudio", "uploadAudio: ${e.message}")

        }


    }.start()