add ConfigurationController

http/configuration.http

@@ -0,0 +1,4 @@
+### get measurement
+GET {{hostname}}/configuration
+Content-Type: application/json
+Identity: 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ

src/main/kotlin/ltd/hlaeja/controller/ConfigurationController.kt

@@ -0,0 +1,31 @@
+package ltd.hlaeja.controller
+
+import ltd.hlaeja.library.deviceRegistry.Identity
+import ltd.hlaeja.service.DeviceConfigurationService
+import ltd.hlaeja.service.DeviceRegistryService
+import ltd.hlaeja.service.JwtService
+import ltd.hlaeja.util.toDeviceResponse
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestHeader
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/configuration")
+class ConfigurationController(
+    private val configurationService: DeviceConfigurationService,
+    private val deviceRegistry: DeviceRegistryService,
+    private val jwtService: JwtService,
+) {
+
+    @GetMapping
+    suspend fun getNodeConfiguration(
+        @RequestHeader("Identity") identityToken: String,
+    ): Map<String, String> = extracted(identityToken)
+        .let { configurationService.getConfiguration(it.node).toDeviceResponse() }
+
+    private suspend fun extracted(
+        identityToken: String,
+    ): Identity.Response = jwtService.readIdentity(identityToken)
+        .let { deviceRegistry.getIdentityFromDevice(it) }
+}