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src/main/kotlin/net/ipksindia/TransactionExecutor.kt

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+
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import model.NeftTransaction
+import model.TransferTransaction
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+import response.TransactionFailureResponse
+import response.TransactionResponse
+import response.TransactionSuccessResponse
+import java.io.IOException
+
+
+class TransactionExecutor() {
+
+    private val protocol = "http"
+    private val host = "localhost"
+    private val port = "8080"
+    private val rootRoute = "WESTBANGAL/api"
+    private val remoteUrl = "$protocol://$host:$port/$rootRoute"
+
+    fun executePair(transactionPair: Pair<TransferTransaction, NeftTransaction>): Pair<TransactionResponse, TransactionResponse> {
+
+        val transferTransaction = transactionPair.first
+        val neftTransaction = transactionPair.second
+        val transferResponse = execute(Json.encodeToString(transferTransaction))
+        val neftResponse = execute(Json.encodeToString(neftTransaction))
+        return Pair(transferResponse, neftResponse)
+    }
+
+    private fun execute(postBody: String): TransactionResponse {
+        val transferRoute = "IPKSNeftRtgsApiTransfer"
+        val transferURL = "$remoteUrl/$transferRoute"
+        val jsonMediaType = "application/json; charset=utf-8".toMediaType()
+
+        val httpClient = OkHttpClient()
+
+        val request = Request.Builder()
+            .url(transferURL)
+            .post(postBody.toRequestBody(jsonMediaType))
+            .build()
+
+        val responseBody = httpClient.newCall(request).execute().use { response ->
+            if (!response.isSuccessful) {
+                throw IOException("Unexpected code $response")
+            }
+            response.body!!.string()
+        }
+
+        val response = if(responseBody.contains("SUCCESS")) {
+            Json.decodeFromString<TransactionSuccessResponse>(responseBody)
+        } else {
+            Json.decodeFromString<TransactionFailureResponse>(responseBody)
+        }
+        return response
+    }
+
+}