Configure database inside api

api/resources/application.conf

@@ -7,3 +7,11 @@ ktor {
         modules = [ be.vandewalleh.NotesApplicationKt.module ]
     }
 }
+
+database {
+    host = "127.0.0.1"
+    port = "3306"
+    name = "Notes"
+    user = "test"
+    password = "test"
+}

api/src/NotesApplication.kt

@@ -2,17 +2,22 @@ package be.vandewalleh
 
 import be.vandewalleh.controllers.KodeinController
 import be.vandewalleh.controllers.controllerModule
+import be.vandewalleh.features.configurationFeature
+import be.vandewalleh.features.configurationModule
 import be.vandewalleh.features.features
 import com.fasterxml.jackson.databind.SerializationFeature
 import io.ktor.application.Application
 import io.ktor.application.install
+import io.ktor.application.log
 import io.ktor.features.CORS
 import io.ktor.features.ContentNegotiation
 import io.ktor.jackson.jackson
 import io.ktor.locations.Locations
 import io.ktor.routing.routing
 import org.kodein.di.Kodein
+import org.kodein.di.description
 import org.kodein.di.generic.instance
+import javax.sql.DataSource
 
 lateinit var kodein: Kodein
 
@@ -22,8 +27,11 @@ fun Application.module() {
 
     kodein = Kodein {
         import(controllerModule)
+        import(configurationModule)
     }
 
+    log.debug(kodein.container.tree.bindings.description())
+
     val controllers: Set<KodeinController> by kodein.instance()
 
     routing {

api/src/features/ConfigurationFeature.kt

@@ -0,0 +1,33 @@
+package be.vandewalleh.features
+
+import io.ktor.application.Application
+import org.kodein.di.Kodein
+import org.kodein.di.generic.bind
+import org.kodein.di.generic.instance
+import org.mariadb.jdbc.MariaDbDataSource
+import javax.sql.DataSource
+
+/**
+ * [Kodein] configuration module
+ */
+lateinit var configurationModule: Kodein.Module
+
+fun Application.configurationFeature() {
+    val dataSource: DataSource = with(environment.config) {
+        val host = property("database.host").getString()
+        val port = property("database.port").getString()
+        val name = property("database.name").getString()
+        val user = property("database.user").getString()
+        val password = property("database.password").getString()
+
+        val url = "jdbc:mariadb://$host:$port/$name"
+
+        MariaDbDataSource(url).apply {
+            this.user = user
+            setPassword(password)
+        }
+    }
+    configurationModule = Kodein.Module("Configuration") {
+        bind<DataSource>() with instance(dataSource)
+    }
+}

api/src/features/Features.kt

@@ -6,4 +6,5 @@ fun Application.features() {
     locationFeature()
     corsFeature()
     contentNegotiationFeature()
+    configurationFeature()
 }