#54 Add healthcheck endpoint

backend/authik/src/main/kotlin/ru/ifmo/se/dating/authik/api/HttpMonitoringApi.kt

@@ -0,0 +1,20 @@
+package ru.ifmo.se.dating.authik.api
+
+import kotlinx.coroutines.reactor.awaitSingle
+import org.springframework.http.ResponseEntity
+import org.springframework.r2dbc.core.DatabaseClient
+import org.springframework.stereotype.Controller
+import ru.ifmo.se.dating.authik.api.generated.MonitoringApiDelegate
+
+@Controller
+internal class HttpMonitoringApi(
+    private val data: DatabaseClient,
+) : MonitoringApiDelegate {
+    override suspend fun monitoringHealthcheckGet(): ResponseEntity<String> =
+        data
+            .sql("SELECT current_schema")
+            .map { row, _ -> row.get(0, String::class.java) }
+            .one()
+            .map { pong -> ResponseEntity.ok(pong) }
+            .awaitSingle()
+}

backend/authik/src/test/kotlin/ru/ifmo/se/dating/authik/api/HttpMonitoringApiTest.kt

@@ -0,0 +1,23 @@
+package ru.ifmo.se.dating.authik.api
+
+import org.junit.Assert
+import org.junit.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.web.client.TestRestTemplate
+import ru.ifmo.se.dating.authik.AuthikTestSuite
+
+class HttpMonitoringApiTest : AuthikTestSuite() {
+    @Autowired
+    private lateinit var rest: TestRestTemplate
+
+    @Test
+    fun healthcheck() {
+        Assert.assertEquals(getHealthcheck(), "public")
+    }
+
+    private fun getHealthcheck(): String {
+        val url = "http://localhost:8080/api/monitoring/healthcheck"
+        val response = rest.getForEntity(url, String::class.java)
+        return response.body!!
+    }
+}