diff --git a/Sources/pom.xml b/Sources/pom.xml
index bed0ed5..56bd3a7 100644
--- a/Sources/pom.xml
+++ b/Sources/pom.xml
@@ -8,6 +8,8 @@
     <name>allin-api</name>
     <description>allin-api</description>
     <properties>
+        <kotlin.version>1.8.10</kotlin.version>
+        <serialization.version>1.5.0</serialization.version>
         <ktor_version>2.3.4</ktor_version>
         <kotlin.code.style>official</kotlin.code.style>
         <kotlin_version>1.9.10</kotlin_version>
@@ -51,6 +53,36 @@
             <version>${ktor_version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-server-core</artifactId>
+            <version>${ktor_version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>2.2.224</version>
+        </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-server-content-negotiation-jvm</artifactId>
+            <version>${ktor_version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-server-html-builder-jvm</artifactId>
+            <version>${ktor_version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-serialization-kotlinx-json-jvm</artifactId>
+            <version>${ktor_version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-client-content-negotiation-jvm</artifactId>
+            <version>${ktor_version}</version>
+        </dependency>
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-test-junit</artifactId>
@@ -63,6 +95,16 @@
             <version>1.6.4</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlinx</groupId>
+            <artifactId>kotlinx-serialization-core-jvm</artifactId>
+            <version>1.5.1</version>
+        </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-server-content-negotiation-jvm</artifactId>
+            <version>${ktor_version}</version>
+        </dependency>
     </dependencies>
     <build>
         <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
@@ -72,7 +114,6 @@
                 <directory>${project.basedir}/src/main/resources</directory>
             </resource>
         </resources>
-
         <plugins>
             <plugin>
                 <artifactId>kotlin-maven-plugin</artifactId>
@@ -138,6 +179,32 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.jetbrains.kotlin</groupId>
+                <artifactId>kotlin-maven-plugin</artifactId>
+                <version>${kotlin.version}</version>
+                <executions>
+                    <execution>
+                        <id>compile</id>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>compile</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <compilerPlugins>
+                        <plugin>kotlinx-serialization</plugin>
+                    </compilerPlugins>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.jetbrains.kotlin</groupId>
+                        <artifactId>kotlin-maven-serialization</artifactId>
+                        <version>${kotlin.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
         </plugins>
     </build>
 </project>
\ No newline at end of file
diff --git a/Sources/src/main/kotlin/allin/Application.kt b/Sources/src/main/kotlin/allin/Application.kt
index 7796f9b..15afe0f 100644
--- a/Sources/src/main/kotlin/allin/Application.kt
+++ b/Sources/src/main/kotlin/allin/Application.kt
@@ -1,15 +1,26 @@
 package allin
 
-import allin.plugins.*
+import allin.routing.BasicRouting
+import allin.routing.UserRouter
+import io.ktor.http.*
+import io.ktor.serialization.kotlinx.json.*
 import io.ktor.server.application.*
 import io.ktor.server.engine.*
 import io.ktor.server.netty.*
+import io.ktor.server.plugins.contentnegotiation.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
 
 fun main() {
-    embeddedServer(Netty, port = 8080, host = "0.0.0.0", module = Application::module)
-            .start(wait = true)
+    embeddedServer(Netty,port=8080,host="0.0.0.0"){
+        extracted()
+    }.start(wait = true)
 }
 
-fun Application.module() {
-    configureRouting()
+private fun Application.extracted() {
+    install(ContentNegotiation) {
+        json()
+    }
+    BasicRouting()
+    UserRouter()
 }
diff --git a/Sources/src/main/kotlin/allin/entities/UserEntity.kt b/Sources/src/main/kotlin/allin/entities/UserEntity.kt
new file mode 100644
index 0000000..d8f0996
--- /dev/null
+++ b/Sources/src/main/kotlin/allin/entities/UserEntity.kt
@@ -0,0 +1,11 @@
+package allin.entities
+
+import org.ktorm.schema.Table
+import org.ktorm.schema.int
+import org.ktorm.schema.varchar
+
+object UserEntity : Table<Nothing>("user") {
+    val id = int("id").primaryKey()
+    val username = varchar("username")
+    val password = varchar("password")
+}
\ No newline at end of file
diff --git a/Sources/src/main/kotlin/allin/model/User.kt b/Sources/src/main/kotlin/allin/model/User.kt
new file mode 100644
index 0000000..4921f91
--- /dev/null
+++ b/Sources/src/main/kotlin/allin/model/User.kt
@@ -0,0 +1,6 @@
+package allin.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class User(val username: String, val email: String, val password: String, var nbCoins: Int)
diff --git a/Sources/src/main/kotlin/allin/plugins/Routing.kt b/Sources/src/main/kotlin/allin/plugins/Routing.kt
index bc358d8..73bdd9e 100644
--- a/Sources/src/main/kotlin/allin/plugins/Routing.kt
+++ b/Sources/src/main/kotlin/allin/plugins/Routing.kt
@@ -1,13 +1,71 @@
-package allin.plugins
+/*package allin.plugins
 
+import allin.model.User
+import io.ktor.http.*
 import io.ktor.server.application.*
+import io.ktor.server.html.*
+import io.ktor.server.request.*
 import io.ktor.server.response.*
 import io.ktor.server.routing.*
+import kotlinx.html.body
+import kotlinx.html.h1
 
+val users = mutableListOf<User>()
 fun Application.configureRouting() {
     routing {
         get("/") {
-            call.respondText("Hello World!")
+            call.respondHtml(HttpStatusCode.OK) {
+                body {
+                    h1 {
+                        +"Bienvenue dans l'API de l'application ALLin!"
+                    }
+                }
+            }
+        }
+
+        route("/users") {
+            get {
+                call.respondText(users.joinToString("\n"), ContentType.Text.Plain)
+            }
+            post {
+                val newUser = call.receive<User>()
+                users.add(newUser)
+                call.respond(HttpStatusCode.Created, newUser)
+            }
+        }
+
+        route("/users/{username}") {
+            get {
+                val username = call.parameters["username"]
+                val user = users.find { it.username == username }
+                if (user != null) {
+                    call.respond(user)
+                } else {
+                    call.respond(HttpStatusCode.NotFound)
+                }
+            }
+            put {
+                val username = call.parameters["username"]
+                val userIndex = users.indexOfFirst { it.username == username }
+                if (userIndex != -1) {
+                    val updatedUser = call.receive<User>()
+                    users[userIndex] = updatedUser
+                    call.respond(updatedUser)
+                } else {
+                    call.respond(HttpStatusCode.NotFound)
+                }
+            }
+            delete {
+                val username = call.parameters["username"]
+                val user = users.find { it.username == username }
+                if (user != null) {
+                    users.remove(user)
+                    call.respond(HttpStatusCode.NoContent)
+                } else {
+                    call.respond(HttpStatusCode.NotFound)
+                }
+            }
         }
     }
 }
+*/
\ No newline at end of file
diff --git a/Sources/src/main/kotlin/allin/routing/BasicRouting.kt b/Sources/src/main/kotlin/allin/routing/BasicRouting.kt
new file mode 100644
index 0000000..0d78278
--- /dev/null
+++ b/Sources/src/main/kotlin/allin/routing/BasicRouting.kt
@@ -0,0 +1,13 @@
+package allin.routing
+
+import io.ktor.server.application.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+
+fun Application.BasicRouting(){
+    routing {
+        get("/") {
+            call.respond("Bienvenue sur l'API de AlLin!")
+        }
+    }
+}
\ No newline at end of file
diff --git a/Sources/src/main/kotlin/allin/routing/UserRouter.kt b/Sources/src/main/kotlin/allin/routing/UserRouter.kt
new file mode 100644
index 0000000..6df81fd
--- /dev/null
+++ b/Sources/src/main/kotlin/allin/routing/UserRouter.kt
@@ -0,0 +1,57 @@
+package allin.routing
+
+import allin.model.User
+import io.ktor.http.*
+import io.ktor.server.application.*
+import io.ktor.server.request.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+
+val users = mutableListOf(User("user1", "user1@example.com", "mdp",1000))
+fun Application.UserRouter() {
+    routing {
+        route("/users") {
+            get {
+                call.respond(users)
+            }
+            post {
+                val newUser = call.receive<User>()
+                users.add(newUser)
+                call.respond(HttpStatusCode.Created, newUser)
+            }
+        }
+
+        route("/users/{username}") {
+            get {
+                val username = call.parameters["username"]
+                val user = users.find { it.username == username }
+                if (user != null) {
+                    call.respond(user)
+                } else {
+                    call.respond(HttpStatusCode.NotFound)
+                }
+            }
+            put {
+                val username = call.parameters["username"]
+                val userIndex = users.indexOfFirst { it.username == username }
+                if (userIndex != -1) {
+                    val updatedUser = call.receive<User>()
+                    users[userIndex] = updatedUser
+                    call.respond(updatedUser)
+                } else {
+                    call.respond(HttpStatusCode.NotFound)
+                }
+            }
+            delete {
+                val username = call.parameters["username"]
+                val user = users.find { it.username == username }
+                if (user != null) {
+                    users.remove(user)
+                    call.respond(HttpStatusCode.NoContent)
+                } else {
+                    call.respond(HttpStatusCode.NotFound)
+                }
+            }
+        }
+    }
+}
diff --git a/Sources/target/classes/META-INF/allin-api.kotlin_module b/Sources/target/classes/META-INF/allin-api.kotlin_module
index 12d8f45..f63b2d7 100644
Binary files a/Sources/target/classes/META-INF/allin-api.kotlin_module and b/Sources/target/classes/META-INF/allin-api.kotlin_module differ
diff --git a/Sources/target/classes/allin/ApplicationKt$main$1.class b/Sources/target/classes/allin/ApplicationKt$main$1.class
index d41d667..194b2ca 100644
Binary files a/Sources/target/classes/allin/ApplicationKt$main$1.class and b/Sources/target/classes/allin/ApplicationKt$main$1.class differ
diff --git a/Sources/target/classes/allin/ApplicationKt.class b/Sources/target/classes/allin/ApplicationKt.class
index 739d2f9..59b9014 100644
Binary files a/Sources/target/classes/allin/ApplicationKt.class and b/Sources/target/classes/allin/ApplicationKt.class differ
diff --git a/Sources/target/classes/allin/plugins/RoutingKt$configureRouting$1$1.class b/Sources/target/classes/allin/plugins/RoutingKt$configureRouting$1$1.class
deleted file mode 100644
index 8d71764..0000000
Binary files a/Sources/target/classes/allin/plugins/RoutingKt$configureRouting$1$1.class and /dev/null differ
diff --git a/Sources/target/classes/allin/plugins/RoutingKt$configureRouting$1.class b/Sources/target/classes/allin/plugins/RoutingKt$configureRouting$1.class
deleted file mode 100644
index 4462df9..0000000
Binary files a/Sources/target/classes/allin/plugins/RoutingKt$configureRouting$1.class and /dev/null differ
diff --git a/Sources/target/classes/allin/plugins/RoutingKt.class b/Sources/target/classes/allin/plugins/RoutingKt.class
deleted file mode 100644
index 5809412..0000000
Binary files a/Sources/target/classes/allin/plugins/RoutingKt.class and /dev/null differ