diff --git a/build.gradle.kts b/build.gradle.kts
index 33efeef..e871767 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,7 +5,7 @@ plugins {
 }
 
 group = "dev.voroby"
-version = "1.0.0"
+version = "1.0.1-SNAPSHOT"
 
 repositories {
     mavenCentral()
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/HttpTelegramGateway.kt b/src/main/kotlin/dev/voroby/telegram/gateway/HttpTelegramGateway.kt
index fb05b15..d08085d 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/HttpTelegramGateway.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/HttpTelegramGateway.kt
@@ -1,7 +1,9 @@
 package dev.voroby.telegram.gateway
 
 import dev.voroby.telegram.gateway.common.infrastructure.HttpProtocol
+import dev.voroby.telegram.gateway.common.service.Http
 import dev.voroby.telegram.gateway.common.service.HttpService
+import dev.voroby.telegram.gateway.common.service.Service
 import dev.voroby.telegram.gateway.service.checkSendAbility.CheckSendAbility
 import dev.voroby.telegram.gateway.service.checkSendAbility.CheckSendAbilityService
 import dev.voroby.telegram.gateway.service.checkVerificationStatus.CheckVerificationStatus
@@ -15,7 +17,7 @@ class HttpTelegramGateway(
     private val gatewayHost: String?
 ): TelegramGateway {
 
-    private val httpService by lazy { HttpService(protocol) }
+    private val httpService: Service<Http.Request<*>> by lazy { HttpService(protocol) }
 
     private val checkSendAbilityService by lazy { CheckSendAbilityService(httpService) }
 
@@ -53,4 +55,4 @@ class HttpTelegramGateway(
     override fun close() {
         protocol.close()
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/TelegramGateway.kt b/src/main/kotlin/dev/voroby/telegram/gateway/TelegramGateway.kt
index 132785e..ca30791 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/TelegramGateway.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/TelegramGateway.kt
@@ -27,4 +27,4 @@ interface TelegramGateway : AutoCloseable {
             is HttpProtocol -> HttpTelegramGateway(protocol, accessToken, gatewayHost)
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/DeliveryStatus.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/DeliveryStatus.kt
index 95848cd..6e4535b 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/DeliveryStatus.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/DeliveryStatus.kt
@@ -7,5 +7,9 @@ data class DeliveryStatus(
     @JsonProperty("updated_at") val updatedAt: Int
 ) {
 
-    enum class Status { sent, read, revoked }
-}
\ No newline at end of file
+    enum class Status {
+        @JsonProperty("sent") Sent,
+        @JsonProperty("read") Read,
+        @JsonProperty("revoked") Revoked
+    }
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/RequestStatus.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/RequestStatus.kt
index 542f576..d14fc2a 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/RequestStatus.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/RequestStatus.kt
@@ -10,4 +10,4 @@ data class RequestStatus(
     @JsonProperty("delivery_status") val deliveryStatus: DeliveryStatus? = null,
     @JsonProperty("verification_status") val verificationStatus: VerificationStatus? = null,
     val payload: String? = null
-)
\ No newline at end of file
+)
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/Response.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/Response.kt
index 3d54552..81f3363 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/Response.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/Response.kt
@@ -5,4 +5,4 @@ sealed interface Response {
     data class Success(val result: RequestStatus) : Response
 
     data class Error(val error: String) : Response
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/VerificationStatus.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/VerificationStatus.kt
index 29e046a..cfb8a71 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/VerificationStatus.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/domain/VerificationStatus.kt
@@ -8,5 +8,10 @@ data class VerificationStatus(
     @JsonProperty("code_entered") val codeEntered: String? = null,
 ) {
 
-    enum class Status { code_valid, code_invalid, code_max_attempts_exceeded, expired }
+    enum class Status {
+        @JsonProperty("code_valid") CodeValid,
+        @JsonProperty("code_invalid") CodeInvalid,
+        @JsonProperty("code_max_attempts_exceeded") CodeMaxAttemptsExceeded,
+        @JsonProperty("expired") Expired
+    }
 }
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/HttpProtocol.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/HttpProtocol.kt
index dfd722e..ed9a2b8 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/HttpProtocol.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/HttpProtocol.kt
@@ -36,4 +36,4 @@ class HttpProtocol(
 
         const val TLS_PROTOCOL = "TLSv1.2"
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/Protocol.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/Protocol.kt
index 666e094..f58cf8c 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/Protocol.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/Protocol.kt
@@ -13,4 +13,4 @@ sealed interface Protocol<T> : AutoCloseable {
             httpClientBuilder: HttpClient.Builder? = null
         ): Protocol<HttpRequest> = HttpProtocol(httpClientBuilder)
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/ProtocolResponse.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/ProtocolResponse.kt
index 8614eb2..cd56c19 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/ProtocolResponse.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/ProtocolResponse.kt
@@ -6,4 +6,4 @@ data class ProtocolResponse(
     val ok: Boolean,
     val result: RequestStatus? = null,
     val error: String = ""
-)
\ No newline at end of file
+)
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/TrustAllManager.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/TrustAllManager.kt
index d7cd591..78173a6 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/TrustAllManager.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/infrastructure/TrustAllManager.kt
@@ -16,4 +16,4 @@ class TrustAllManager: X509TrustManager {
     override fun getAcceptedIssuers(): Array<X509Certificate> {
         return emptyArray()
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Http.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Http.kt
new file mode 100644
index 0000000..a44ea8f
--- /dev/null
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Http.kt
@@ -0,0 +1,11 @@
+package dev.voroby.telegram.gateway.common.service
+
+object Http {
+
+    data class Request<Payload>(
+        val body: Payload,
+        val serviceName: String,
+        val accessToken: String,
+        val host: String?
+    )
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/service/HttpService.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/service/HttpService.kt
index 59f7358..5ec7a44 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/service/HttpService.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/service/HttpService.kt
@@ -5,27 +5,24 @@ import arrow.core.Either.Companion.catch
 import dev.voroby.telegram.gateway.common.domain.Response
 import dev.voroby.telegram.gateway.common.domain.Response.Error
 import dev.voroby.telegram.gateway.common.domain.Response.Success
-import dev.voroby.telegram.gateway.common.infrastructure.HttpProtocol
-import dev.voroby.telegram.gateway.util.Http.Companion.DEFAULT_GATEWAY_HOST
+import dev.voroby.telegram.gateway.common.infrastructure.Protocol
+import dev.voroby.telegram.gateway.util.Http.DEFAULT_GATEWAY_HOST
 import dev.voroby.telegram.gateway.util.ObjectMapper.toJson
 import java.net.URI
 import java.net.http.HttpRequest
 import java.net.http.HttpRequest.BodyPublishers.ofString
 
-class HttpService(private val protocol: HttpProtocol) {
+class HttpService(private val protocol: Protocol<HttpRequest>) : Service<Http.Request<*>> {
 
-    suspend fun <Payload> execute(
-        body: Payload,
-        serviceName: String,
-        accessToken: String,
-        host: String?
-    ): Either<Throwable, Response> = catch {
-        val request = httpRequest(body, serviceName, accessToken, host)
-        val baseResponse = protocol(request)
-        if (baseResponse.ok)
-            baseResponse.result?.let { Success(it) } ?: Error(NO_RESULT_MESSAGE)
-        else
-            Error(baseResponse.error)
+    override suspend fun invoke(request: Http.Request<*>): Either<Throwable, Response> = with(request) {
+        catch {
+            val protocolRequest = httpRequest(body, serviceName, accessToken, host)
+            val baseResponse = protocol(protocolRequest)
+            if (baseResponse.ok)
+                baseResponse.result?.let { Success(it) } ?: Error(NO_RESULT_MESSAGE)
+            else
+                Error(baseResponse.error)
+        }
     }
 
     private fun <Payload> httpRequest(
@@ -43,4 +40,4 @@ class HttpService(private val protocol: HttpProtocol) {
 
         const val NO_RESULT_MESSAGE = "There is no result from the server"
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Service.kt b/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Service.kt
index aa96ae5..bab6bcd 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Service.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/common/service/Service.kt
@@ -6,4 +6,4 @@ import dev.voroby.telegram.gateway.common.domain.Response
 interface Service<T> {
 
     suspend operator fun invoke(request: T): Either<Throwable, Response>
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/ServiceName.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/ServiceName.kt
index db151dd..adf3c8c 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/ServiceName.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/ServiceName.kt
@@ -5,4 +5,4 @@ object ServiceName {
     const val SEND_VERIFICATION_MESSAGE = "sendVerificationMessage"
     const val CHECK_SEND_ABILITY = "checkSendAbility"
     const val CHECK_VERIFICATION_STATUS = "checkVerificationStatus"
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbility.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbility.kt
index 728631e..d02d966 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbility.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbility.kt
@@ -11,4 +11,4 @@ object CheckSendAbility {
         val gatewayHost: String? = null,
         val payload: Request
     )
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbilityService.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbilityService.kt
index 6a220a0..78d95c3 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbilityService.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkSendAbility/CheckSendAbilityService.kt
@@ -1,18 +1,21 @@
 package dev.voroby.telegram.gateway.service.checkSendAbility
 
-import dev.voroby.telegram.gateway.common.service.HttpService
+import dev.voroby.telegram.gateway.common.service.Http
 import dev.voroby.telegram.gateway.common.service.Service
 import dev.voroby.telegram.gateway.service.ServiceName.CHECK_SEND_ABILITY
 import dev.voroby.telegram.gateway.service.checkSendAbility.CheckSendAbility.ExtendedRequest
 
-class CheckSendAbilityService(private val httpService: HttpService) : Service<ExtendedRequest> {
+class CheckSendAbilityService(
+    private val httpService: Service<Http.Request<*>>
+) : Service<ExtendedRequest> {
 
     override suspend fun invoke(request: ExtendedRequest) = with(request) {
-        httpService.execute(
+        val httpRequest = Http.Request(
             body = payload,
             serviceName = CHECK_SEND_ABILITY,
             accessToken = accessToken,
             host = gatewayHost
         )
+        httpService.invoke(httpRequest)
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatus.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatus.kt
index 165e421..4cad06c 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatus.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatus.kt
@@ -17,4 +17,4 @@ object CheckVerificationStatus {
         val gatewayHost: String? = null,
         val payload: Request
     )
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatusService.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatusService.kt
index 2b4f0dd..ce5df69 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatusService.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/checkVerificationStatus/CheckVerificationStatusService.kt
@@ -1,18 +1,21 @@
 package dev.voroby.telegram.gateway.service.checkVerificationStatus
 
-import dev.voroby.telegram.gateway.common.service.HttpService
+import dev.voroby.telegram.gateway.common.service.Http
 import dev.voroby.telegram.gateway.common.service.Service
 import dev.voroby.telegram.gateway.service.ServiceName.CHECK_VERIFICATION_STATUS
 import dev.voroby.telegram.gateway.service.checkVerificationStatus.CheckVerificationStatus.ExtendedRequest
 
-class CheckVerificationStatusService(private val httpService: HttpService) : Service<ExtendedRequest> {
+class CheckVerificationStatusService(
+    private val httpService: Service<Http.Request<*>>
+) : Service<ExtendedRequest> {
 
     override suspend fun invoke(request: ExtendedRequest) = with(request) {
-        httpService.execute(
+        val httpRequest = Http.Request(
             body = payload,
             serviceName = CHECK_VERIFICATION_STATUS,
             accessToken = accessToken,
             host = gatewayHost
         )
+        httpService.invoke(httpRequest)
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessage.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessage.kt
index 709cef5..3976ef1 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessage.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessage.kt
@@ -28,4 +28,4 @@ object SendVerificationMessage {
         val gatewayHost: String? = null,
         val payload: Request
     )
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessageService.kt b/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessageService.kt
index 98db089..4e5dcbf 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessageService.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/service/sendVerificationMessage/SendVerificationMessageService.kt
@@ -1,18 +1,21 @@
 package dev.voroby.telegram.gateway.service.sendVerificationMessage
 
-import dev.voroby.telegram.gateway.common.service.HttpService
+import dev.voroby.telegram.gateway.common.service.Http
 import dev.voroby.telegram.gateway.common.service.Service
 import dev.voroby.telegram.gateway.service.ServiceName.SEND_VERIFICATION_MESSAGE
 import dev.voroby.telegram.gateway.service.sendVerificationMessage.SendVerificationMessage.ExtendedRequest
 
-class SendVerificationMessageService(private val httpService: HttpService) : Service<ExtendedRequest> {
+class SendVerificationMessageService(
+    private val httpService: Service<Http.Request<*>>
+) : Service<ExtendedRequest> {
 
     override suspend fun invoke(request: ExtendedRequest) = with(request) {
-        httpService.execute(
+        val httpRequest = Http.Request(
             body = payload,
             serviceName = SEND_VERIFICATION_MESSAGE,
             accessToken = accessToken,
             host = gatewayHost
         )
+        httpService.invoke(httpRequest)
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/util/Http.kt b/src/main/kotlin/dev/voroby/telegram/gateway/util/Http.kt
index 40c0e0b..aac27d0 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/util/Http.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/util/Http.kt
@@ -1,9 +1,6 @@
 package dev.voroby.telegram.gateway.util
 
-class Http {
+object Http {
 
-    companion object {
-
-        const val DEFAULT_GATEWAY_HOST = "gatewayapi.telegram.org"
-    }
-}
\ No newline at end of file
+    const val DEFAULT_GATEWAY_HOST = "gatewayapi.telegram.org"
+}
diff --git a/src/main/kotlin/dev/voroby/telegram/gateway/util/ObjectMapper.kt b/src/main/kotlin/dev/voroby/telegram/gateway/util/ObjectMapper.kt
index 45839c4..8a4929c 100644
--- a/src/main/kotlin/dev/voroby/telegram/gateway/util/ObjectMapper.kt
+++ b/src/main/kotlin/dev/voroby/telegram/gateway/util/ObjectMapper.kt
@@ -4,9 +4,9 @@ import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 
 object ObjectMapper {
 
-    val objectMapper by lazy { jacksonObjectMapper() }
+    val mapper by lazy { jacksonObjectMapper() }
 
-    fun <T> toJson(obj: T): String = objectMapper.writeValueAsString(obj)
+    fun <T> toJson(obj: T): String = mapper.writeValueAsString(obj)
 
-    inline fun <reified T> fromJson(json: String): T = objectMapper.readValue(json, T::class.java)
-}
\ No newline at end of file
+    inline fun <reified T> fromJson(json: String): T = mapper.readValue(json, T::class.java)
+}
diff --git a/src/test/kotlin/dev/voroby/telegram/gateway/IntegrationTests.kt b/src/test/kotlin/dev/voroby/telegram/gateway/IntegrationTests.kt
index 19d4c65..a0ff60b 100644
--- a/src/test/kotlin/dev/voroby/telegram/gateway/IntegrationTests.kt
+++ b/src/test/kotlin/dev/voroby/telegram/gateway/IntegrationTests.kt
@@ -28,4 +28,4 @@ class IntegrationTests : FunSpec({
         response.isRight().shouldBeTrue()
         response.onRight { onProtocolSuccess(it) }
     }
-})
\ No newline at end of file
+})