diff --git a/build.gradle.kts b/build.gradle.kts
index 49e1716..15df67b 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -23,6 +23,7 @@ plugins {
     id("io.spring.dependency-management") version "1.0.11.RELEASE" apply false
     kotlin("jvm") version "1.4.21" apply false
     kotlin("plugin.spring") version "1.4.21" apply false
+    kotlin("plugin.jpa") version "1.4.21" apply false
 }
 
 allprojects {
diff --git a/customer-api/.gitignore b/customer-api/.gitignore
new file mode 100644
index 0000000..c2065bc
--- /dev/null
+++ b/customer-api/.gitignore
@@ -0,0 +1,37 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
diff --git a/customer-api/build.gradle.kts b/customer-api/build.gradle.kts
new file mode 100644
index 0000000..230a621
--- /dev/null
+++ b/customer-api/build.gradle.kts
@@ -0,0 +1,19 @@
+plugins {
+    id("org.springframework.boot")
+    id("io.spring.dependency-management")
+    kotlin("jvm")
+    kotlin("plugin.spring")
+}
+
+dependencies {
+    implementation("org.springframework.boot:spring-boot-starter-data-mongodb")
+    implementation("org.springframework.boot:spring-boot-starter-web")
+    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
+    implementation("org.jetbrains.kotlin:kotlin-reflect")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+}
+
+tasks.withType<Test> {
+    useJUnitPlatform()
+}
diff --git a/customer-api/gradle/wrapper/gradle-wrapper.jar b/customer-api/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e708b1c
Binary files /dev/null and b/customer-api/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/customer-api/gradle/wrapper/gradle-wrapper.properties b/customer-api/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..12d38de
--- /dev/null
+++ b/customer-api/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/customer-api/src/main/kotlin/com/example/customerapi/CustomerApiApplication.kt b/customer-api/src/main/kotlin/com/example/customerapi/CustomerApiApplication.kt
new file mode 100644
index 0000000..c7ac699
--- /dev/null
+++ b/customer-api/src/main/kotlin/com/example/customerapi/CustomerApiApplication.kt
@@ -0,0 +1,71 @@
+package com.example.customerapi
+
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.CommandLineRunner
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+import org.springframework.data.annotation.Id
+import org.springframework.data.mongodb.core.mapping.Document
+import org.springframework.data.mongodb.repository.MongoRepository
+import org.springframework.stereotype.Repository
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+import java.io.Serializable
+import kotlin.random.Random
+
+@SpringBootApplication
+class CustomerApiApplication @Autowired constructor(
+    private val customerRepository: CustomerRepository,
+) : CommandLineRunner {
+    override fun run(vararg args: String?) {
+
+        val customer = Customer.create("Sambo - ${Random.nextInt(1000)}", "Chea - ${Random.nextInt(1000)}")
+
+        val saved = customerRepository.save(customer)
+
+        println(saved)
+    }
+}
+
+fun main(args: Array<String>) {
+    runApplication<CustomerApiApplication>(*args)
+}
+
+
+@Document
+data class Customer(
+    @Id
+    val id: String? = null,
+    var firstName: String,
+    var lastName: String,
+) : Serializable {
+    companion object {
+        fun create(
+            firstName: String,
+            lastName: String
+        ): Customer {
+            return Customer(null, firstName, lastName)
+        }
+    }
+}
+
+@Repository
+interface CustomerRepository : MongoRepository<Customer, String>
+
+@RestController
+@RequestMapping("/customers")
+class CustomerController @Autowired constructor(
+    private val customerRepository: CustomerRepository
+) {
+    @GetMapping
+    fun getAllCustomers(): Collection<Customer> {
+        return customerRepository.findAll()
+    }
+
+    @GetMapping("/create")
+    fun createCustomer(): Customer? {
+        val customer = Customer.create("Sambo - ${Random.nextInt(1000)}", "Chea - ${Random.nextInt(1000)}")
+        return customerRepository.save(customer)
+    }
+}
\ No newline at end of file
diff --git a/customer-api/src/main/resources/application.properties b/customer-api/src/main/resources/application.properties
new file mode 100644
index 0000000..78195c5
--- /dev/null
+++ b/customer-api/src/main/resources/application.properties
@@ -0,0 +1 @@
+spring.data.mongodb.uri=mongodb://192.168.0.202:27017/db-customer-api
\ No newline at end of file
diff --git a/customer-api/src/test/kotlin/com/example/customerapi/CustomerApiApplicationTests.kt b/customer-api/src/test/kotlin/com/example/customerapi/CustomerApiApplicationTests.kt
new file mode 100644
index 0000000..5e115d3
--- /dev/null
+++ b/customer-api/src/test/kotlin/com/example/customerapi/CustomerApiApplicationTests.kt
@@ -0,0 +1,13 @@
+package com.example.customerapi
+
+import org.junit.jupiter.api.Test
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class CustomerApiApplicationTests {
+
+    @Test
+    fun contextLoads() {
+    }
+
+}
diff --git a/settings.gradle.kts b/settings.gradle.kts
index eff4bc5..110f265 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,3 +1,3 @@
     rootProject.name = "sample-modules"
 
-    include("demo", "lib")
\ No newline at end of file
+    include("demo", "lib", "customer-api")
\ No newline at end of file