first commit

.gitignore

@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/gradle.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleHome" value="" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/kotlinc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="2.0.0" />
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

account-registration.json

@@ -0,0 +1,21 @@
+{
+  "host": "service.synxchro.co.id",
+  "path": "/fello_snap/v1/registration-account-binding",
+  "credential": {
+    "client_key": "54eef1cb9f8da7497ca642a5b731460a",
+    "client_secret": "fq5YyCZ4tO0mcOvty6dsZgsK5WYwMt6RIILQE+ULrHr2slBxGomwhb/4vyKTA+6BzVayant5lURucVr/RgXDjA==",
+    "private_key": "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",
+    "partner_id": "43185b5e-26e2-11ef-a050-900f0cab05bd"
+  },
+  "body": {
+    "redirectUrl": "https://nexilis.io",
+    "merchantId": "234",
+    "additionalInfo": {
+      "notifUrl": "https://nexilis.io/logging",
+      "customerId": "084399679677",
+      "description": "nexilis.io"
+    },
+    "partnerReferenceNo": "6057974936400",
+    "phoneNo": "084399679677"
+  }
+}

balance-inquiry.json

@@ -0,0 +1,18 @@
+{
+  "host": "service.synxchro.co.id",
+  "path": "/fello_snap/v1/balance-inquiry",
+  "credential": {
+    "client_key": "54eef1cb9f8da7497ca642a5b731460a",
+    "client_secret": "fq5YyCZ4tO0mcOvty6dsZgsK5WYwMt6RIILQE+ULrHr2slBxGomwhb/4vyKTA+6BzVayant5lURucVr/RgXDjA==",
+    "private_key": "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",
+    "partner_id": "43185b5e-26e2-11ef-a050-900f0cab05bd"
+  },
+  "body": {
+    "balanceTypes": [
+      "cash"
+    ],
+    "bankCardToken": "084399679677",
+    "additionalInfo": {},
+    "partnerReferenceNo": "2884831400600"
+  }
+}

build.gradle.kts

@@ -0,0 +1,48 @@
+plugins {
+    kotlin("jvm") version "2.0.0"
+    application
+}
+
+group = "io.nexilis"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation(platform("com.squareup.okhttp3:okhttp-bom:4.12.0"))
+    implementation("com.squareup.okhttp3:okhttp")
+    implementation("org.json:json:20231013")
+    testImplementation(kotlin("test"))
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+application.mainClass = "io.nexilis.MainKt"
+
+tasks.jar {
+    dependsOn.addAll(
+        listOf(
+            "compileJava",
+            "compileKotlin",
+            "processResources"
+        )
+    )
+    archiveClassifier.set("standalone")
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    manifest {
+        attributes["Main-Class"] = application.mainClass
+    }
+    val sourcesMain = sourceSets.main.get()
+    val contents = configurations.runtimeClasspath.get()
+        .map { if (it.isDirectory) it else zipTree(it) } +
+            sourcesMain.output
+    from(contents)
+}
+
+kotlin {
+    jvmToolchain(17)
+}

gradle.properties

@@ -0,0 +1 @@
+kotlin.code.style=official

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Fri Jun 28 14:47:10 WIB 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

payment-cancel.json

@@ -0,0 +1,22 @@
+{
+  "host": "service.synxchro.co.id",
+  "path": "/fello_snap/v1/debit/cancel",
+  "credential": {
+    "client_key": "54eef1cb9f8da7497ca642a5b731460a",
+    "client_secret": "fq5YyCZ4tO0mcOvty6dsZgsK5WYwMt6RIILQE+ULrHr2slBxGomwhb/4vyKTA+6BzVayant5lURucVr/RgXDjA==",
+    "private_key": "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",
+    "partner_id": "43185b5e-26e2-11ef-a050-900f0cab05bd"
+  },
+  "body": {
+    "originalPartnerReferenceNo": "36453756789987784665",
+    "originalReferenceNo": "",
+    "serviceCode": "1",
+    "amount": {
+      "value": "10000.00",
+      "currency": "IDR"
+    },
+    "additionalInfo": {
+      "customerId": "085295955580"
+    }
+  }
+}

payment-h2h.json

@@ -0,0 +1,32 @@
+{
+  "host": "service.synxchro.co.id",
+  "path": "/fello_snap/v1/debit/payment-host-to-host",
+  "credential": {
+    "client_key": "54eef1cb9f8da7497ca642a5b731460a",
+    "client_secret": "fq5YyCZ4tO0mcOvty6dsZgsK5WYwMt6RIILQE+ULrHr2slBxGomwhb/4vyKTA+6BzVayant5lURucVr/RgXDjA==",
+    "private_key": "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",
+    "partner_id": "43185b5e-26e2-11ef-a050-900f0cab05bd"
+  },
+  "body": {
+    "amount": {
+      "currency": "IDR",
+      "value": "1000.00"
+    },
+    "bankCardToken": "084399679677",
+    "additionalInfo": {},
+    "partnerReferenceNo": "4822018295500",
+    "urlParam": [
+      {
+        "isDeeplink": "Y",
+        "type": "PAY_RETURN",
+        "url": "https://nexilis.io"
+      },
+      {
+        "isDeeplink": "Y",
+        "type": "PAY_NOTIFY",
+        "url": "https://nexilis.io/logging"
+      }
+    ],
+    "chargeToken": "222"
+  }
+}

payment-status.json

@@ -0,0 +1,22 @@
+{
+  "host": "service.synxchro.co.id",
+  "path": "/fello_snap/v1/debit/status",
+  "credential": {
+    "client_key": "54eef1cb9f8da7497ca642a5b731460a",
+    "client_secret": "fq5YyCZ4tO0mcOvty6dsZgsK5WYwMt6RIILQE+ULrHr2slBxGomwhb/4vyKTA+6BzVayant5lURucVr/RgXDjA==",
+    "private_key": "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",
+    "partner_id": "43185b5e-26e2-11ef-a050-900f0cab05bd"
+  },
+  "body": {
+    "originalPartnerReferenceNo": "36453756789987784665",
+    "originalReferenceNo": "",
+    "serviceCode": "1",
+    "amount": {
+      "value": "10000.00",
+      "currency": "IDR"
+    },
+    "additionalInfo": {
+      "customerId": "085295955580"
+    }
+  }
+}

settings.gradle.kts

@@ -0,0 +1,5 @@
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
+}
+rootProject.name = "Fello"
+

src/main/kotlin/io/nexilis/Main.kt

@@ -0,0 +1,255 @@
+package io.nexilis
+
+import okhttp3.*
+import okhttp3.RequestBody.Companion.toRequestBody
+import okio.Buffer
+import org.json.JSONObject
+import java.io.IOException
+import java.net.Socket
+import java.nio.file.Files
+import java.nio.file.Paths
+import java.security.*
+import java.security.cert.CertificateException
+import java.security.cert.X509Certificate
+import java.security.spec.InvalidKeySpecException
+import java.security.spec.PKCS8EncodedKeySpec
+import java.text.SimpleDateFormat
+import java.util.*
+import java.util.concurrent.TimeUnit
+import javax.crypto.Mac
+import javax.crypto.spec.SecretKeySpec
+import javax.net.ssl.*
+
+fun main(args: Array<String>) {
+    try {
+        val bytes = Files.readAllBytes(Paths.get(args[0]))
+        val json = JSONObject(String(bytes))
+        val host = json.getString("host")
+        val path = json.getString("path")
+        val credential = json.getJSONObject("credential")
+        val body = json.getJSONObject("body")
+        val clientKey = credential.getString("client_key")
+        val clientSecret = credential.getString("client_secret")
+        val privateKey = credential.getString("private_key")
+        val partnerId = credential.getString("partner_id")
+        println("CLIENT-KEY = $clientKey")
+        println("CLIENT-SECRET = $clientSecret")
+        println("PRIVATE-KEY = $privateKey")
+        println("PARTNER-ID = $partnerId")
+        val timeStamp: String = getXTimestamp()
+        println("TIMESTAMP = $timeStamp")
+        println("===========================================================")
+        var signature: String = createAuthSignature(clientKey, privateKey, timeStamp)
+        val client: OkHttpClient = getUnsafeOkHttpClient()
+        val auth = "{\"additionalInfo\":{},\"grantType\":\"client_credentials\"}"
+        var requestBody: RequestBody = auth.toByteArray().toRequestBody(null, 0, auth.length)
+        var request: Request = Request.Builder()
+            .addHeader("Host", "service.synxchro.co.id")
+            .addHeader("Content-Type", "application/json")
+            .addHeader("x-timestamp", timeStamp)
+            .addHeader("x-client-key", clientKey)
+            .addHeader("x-signature", signature)
+            .url("https://service.synxchro.co.id/fello_snap/v1/access/token/b2b")
+            .post(requestBody)
+            .build()
+        var accessToken: String
+        client.newCall(request).execute().use { response ->
+            val responseBody = response.body
+            val responseBodyString = responseBody?.string() ?: "{}"
+            println(responseBodyString)
+            val jsonObject1 = JSONObject(responseBodyString)
+            if (!jsonObject1.has("accessToken")) return
+            accessToken = jsonObject1.getString("accessToken")
+        }
+        println("===========================================================")
+        signature = createServiceSignature(clientSecret, path, accessToken, timeStamp, body.toString())
+        requestBody = body.toString().toByteArray().toRequestBody(null, 0, body.toString().length)
+        request = Request.Builder()
+            .addHeader("Host", "service.synxchro.co.id")
+            .addHeader("Content-Type", "application/json")
+            .addHeader("Authorization", "Bearer $accessToken")
+            .addHeader("x-timestamp", timeStamp)
+            .addHeader("x-client-key", clientKey)
+            .addHeader("x-signature", signature)
+            .addHeader("x-external-id", getRandomId())
+            .addHeader("x-partner-id", partnerId)
+            .addHeader("channel-id", "1")
+            .url("https://$host$path")
+            .post(requestBody)
+            .build()
+        client.newCall(request).execute().use { response ->
+            val responseBody = response.body
+            val responseBodyString = responseBody?.string() ?: "{}"
+            println(responseBodyString)
+        }
+    } catch (e: java.lang.Exception) {
+        e.printStackTrace()
+    }
+}
+
+//
+//
+
+@Throws(
+    NoSuchAlgorithmException::class,
+    InvalidKeySpecException::class,
+    InvalidKeyException::class,
+    SignatureException::class
+)
+fun createAuthSignature(clientKey: String, privateKey: String, timeStamp: String): String {
+    return Base64.getEncoder().encodeToString(signRsa(clientKey, privateKey, timeStamp))
+}
+
+@Throws(
+    NoSuchAlgorithmException::class,
+    InvalidKeySpecException::class,
+    InvalidKeyException::class,
+    SignatureException::class
+)
+fun signRsa(clientKey: String, privateKey: String, timeStamp: String): ByteArray {
+    val signature = Signature.getInstance("SHA256withRSA")
+    signature.initSign(generatePrivateKey(privateKey))
+    signature.update(("$clientKey|$timeStamp").toByteArray())
+    return signature.sign()
+}
+
+fun getXTimestamp(): String {
+    return SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssX").format(Date())
+}
+
+fun getXTimestamp(date: Date?): String {
+    return SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssX").format(date)
+}
+
+@Throws(NoSuchAlgorithmException::class, InvalidKeySpecException::class)
+fun generatePrivateKey(privateKey: String): PrivateKey {
+    val decodeBytes: ByteArray = Base64.getDecoder().decode(privateKey)
+    val kf = KeyFactory.getInstance("RSA")
+    return kf.generatePrivate(PKCS8EncodedKeySpec(decodeBytes))
+}
+
+@Throws(NoSuchAlgorithmException::class, InvalidKeyException::class)
+fun createServiceSignature(secret: String, path: String, accessToken: String, timeStamp: String, body: String): String {
+    val hex: String = bytesToHex(hashed256(body)).lowercase(Locale.getDefault())
+    val data = "post:$path:$accessToken:$hex:$timeStamp"
+    return Base64.getEncoder().encodeToString(calculateHMAC(secret, data))
+}
+
+private const val HMAC_SHA512 = "HmacSHA512"
+
+@Throws(NoSuchAlgorithmException::class, InvalidKeyException::class)
+fun calculateHMAC(secret: String, data: String): ByteArray {
+    val secretKeySpec = SecretKeySpec(secret.toByteArray(), HMAC_SHA512)
+    val mac = Mac.getInstance(HMAC_SHA512)
+    mac.init(secretKeySpec)
+    return mac.doFinal(data.toByteArray())
+}
+
+@Throws(NoSuchAlgorithmException::class)
+fun hashed256(data: String): ByteArray {
+    val digest = MessageDigest.getInstance("SHA-256")
+    return digest.digest(data.toByteArray())
+}
+
+fun bytesToHex(bytes: ByteArray): String {
+    val sb = StringBuilder()
+    for (b in bytes) {
+        sb.append(String.format("%02x", b))
+    }
+    return sb.toString()
+}
+
+fun getRandomId(): String {
+    return System.nanoTime().toString()
+}
+
+fun getUnsafeOkHttpClient(): OkHttpClient {
+    try {
+        val trustAllCerts = arrayOf<TrustManager>(object : X509ExtendedTrustManager() {
+            @Throws(CertificateException::class)
+            override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String, socket: Socket) {
+            }
+
+            @Throws(CertificateException::class)
+            override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String, socket: Socket) {
+            }
+
+            @Throws(CertificateException::class)
+            override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String, engine: SSLEngine) {
+            }
+
+            @Throws(CertificateException::class)
+            override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String, engine: SSLEngine) {
+            }
+
+            @Throws(CertificateException::class)
+            override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String) {
+            }
+
+            @Throws(CertificateException::class)
+            override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String) {
+            }
+
+            override fun getAcceptedIssuers(): Array<X509Certificate> {
+                return arrayOf()
+            }
+        }
+        )
+
+        val sslContext = SSLContext.getInstance("TLS")
+        sslContext.init(null, trustAllCerts, SecureRandom())
+        val sslSocketFactory = sslContext.socketFactory
+        val builder: OkHttpClient.Builder = OkHttpClient.Builder()
+        builder.addInterceptor(LoggingInterceptor())
+        builder.followRedirects(false)
+        builder.sslSocketFactory(sslSocketFactory, trustAllCerts[0] as X509TrustManager)
+        builder.hostnameVerifier { _: String?, _: SSLSession? -> true }
+        builder.readTimeout(30, TimeUnit.SECONDS)
+        return builder.build()
+    } catch (e: Exception) {
+        throw RuntimeException(e)
+    }
+}
+
+class LoggingInterceptor : Interceptor {
+    @Throws(IOException::class)
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request: Request = chain.request()
+
+        val t1 = System.nanoTime()
+        print(
+            "OkHttp", String.format(
+                "Sending request %s%n%s",
+                request.url, request.headers
+            )
+        )
+        print(bodyToString(request) + "\n")
+
+        val response: Response = chain.proceed(request)
+
+        val t2 = System.nanoTime()
+        print(
+            "OkHttp", String.format(
+                "Received response for %s in %.1fms%n%s",
+                response.request.url, (t2 - t1) / 1e6, response.headers
+            )
+        )
+
+        return response
+    }
+}
+
+fun print(vararg args: CharSequence?) {
+    println(java.lang.String.join(",", *args))
+}
+
+fun bodyToString(request: Request): String {
+    try {
+        val copy = request.newBuilder().build()
+        val buffer = Buffer()
+        copy.body?.writeTo(buffer)
+        return buffer.readUtf8()
+    } catch (e: IOException) {
+        return ""
+    }
+}