gistfile1.txt

added `implementation("net.logstash.logback:logstash-logback-encoder:8.0")` to build `build.gradle.kts`

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="OpenTelemetry"
              class="io.opentelemetry.instrumentation.logback.appender.v1_0.OpenTelemetryAppender">
        <captureExperimentalAttributes>true</captureExperimentalAttributes>
        <captureKeyValuePairAttributes>true</captureKeyValuePairAttributes>
        <captureCodeAttributes>true</captureCodeAttributes>
        <captureMarkerAttribute>true</captureMarkerAttribute>
        <captureMdcAttributes>*</captureMdcAttributes>
        <numLogsCapturedBeforeOtelInstall>1</numLogsCapturedBeforeOtelInstall>
    </appender>
    <!--<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} trace_id=%X{trace_id} span_id=%X{span_id} trace_flags=%X{trace_flags} %msg%n</pattern>
        </encoder>
    </appender>-->
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="net.logstash.logback.encoder.LogstashEncoder"/>
    </appender>
    <root level="DEBUG">
        <appender-ref ref="CONSOLE"/>
<!--        <appender-ref ref="OpenTelemetry"/>-->
    </root>
</configuration>


result

{"@timestamp":"2024-10-13T10:50:06.7546371+01:00","@version":"1","message":"GET \"/ping\", parameters={}","logger_name":"org.springframework.web.servlet.DispatcherServlet","thread_name":"http-nio-8080-exec-1","level":"DEBUG","level_value":10000}
2024-10-13T09:50:06.754Z DEBUG 'GET "/ping", parameters={}' : b8d4074cd9b962c75dbd0d775e302b7a c8c75b9afc8a931e [scopeInfo: org.springframework.web.servlet.DispatcherServlet:] {}
{"@timestamp":"2024-10-13T10:50:06.7606357+01:00","@version":"1","message":"Mapped to io.opentelemetry.example.graal.Controller#ping()","logger_name":"org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping","thread_name":"http-nio-8080-exec-1","level":"DEBUG","level_value":10000}
2024-10-13T09:50:06.76Z DEBUG 'Mapped to io.opentelemetry.example.graal.Controller#ping()' : b8d4074cd9b962c75dbd0d775e302b7a c8c75b9afc8a931e [scopeInfo: org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping:] {}
{"@timestamp":"2024-10-13T10:50:06.7721783+01:00","@version":"1","message":"Using 'text/plain', given [*/*] and supported [text/plain, */*, application/json, application/*+json]","logger_name":"org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor","thread_name":"http-nio-8080-exec-1","level":"DEBUG","level_value":10000}
2024-10-13T09:50:06.772Z DEBUG 'Using 'text/plain', given [*/*] and supported [text/plain, */*, application/json, application/*+json]' : b8d4074cd9b962c75dbd0d775e302b7a c8c75b9afc8a931e [scopeInfo: org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor:] {}
{"@timestamp":"2024-10-13T10:50:06.7737869+01:00","@version":"1","message":"Writing [\"pong\"]","logger_name":"org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor","thread_name":"http-nio-8080-exec-1","level":"DEBUG","level_value":10000}
2024-10-13T09:50:06.773Z DEBUG 'Writing ["pong"]' : b8d4074cd9b962c75dbd0d775e302b7a c8c75b9afc8a931e [scopeInfo: org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor:] {}
{"@timestamp":"2024-10-13T10:50:06.7777276+01:00","@version":"1","message":"Completed 200 OK","logger_name":"org.springframework.web.servlet.DispatcherServlet","thread_name":"http-nio-8080-exec-1","level":"DEBUG","level_value":10000}
2024-10-13T09:50:06.777Z DEBUG 'Completed 200 OK' : b8d4074cd9b962c75dbd0d775e302b7a c8c75b9afc8a931e [scopeInfo: org.springframework.web.servlet.DispatcherServlet:] {}
{"@timestamp":"2024-10-13T10:50:06.7787256+01:00","@version":"1","message":"Mapped to io.opentelemetry.example.graal.Controller#ping()","logger_name":"org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping","thread_name":"http-nio-8080-exec-1","level":"DEBUG","level_value":10000}
2024-10-13T09:50:06.778Z DEBUG 'Mapped to io.opentelemetry.example.graal.Controller#ping()' : 00000000000000000000000000000000 0000000000000000 [scopeInfo: org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping:] {}


my target is 

{
  "activity": {
    "traceId": "a8cf4789110a57594860c757b223de16",
    "spanId": "869d06ff6df625b0",
    "activityTraceFlags": "Recorded",
    "parentSpanId": "0000000000000000",
    "activitySourceName": "Microsoft.AspNetCore",
    "activitySourceVersion": "",
    "displayName": "GET Hello",
    "kind": "Server",
    "startTime": "2024-10-04T23:16:15.8704941Z",
    "duration": "00:00:00.1210854",
    "tags": {
      "server.address": "localhost",
      "server.port": "8080",
      "http.request.method": "GET",
      "url.scheme": "http",
      "url.path": "/Hello",
      "network.protocol.version": "1.1",
      "user_agent.original": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0",
      "http.route": "Hello",
      "http.response.status_code": "200"
    },
    "statusCode": "Unset",
    "events": [],
    "links": [],
    "resource": {
      "service.name": "my-service-name",
      "telemetry.sdk.name": "opentelemetry",
      "telemetry.sdk.language": "dotnet",
      "telemetry.sdk.version": "1.9.0"
    },
    "rootId": "a8cf4789110a57594860c757b223de16",
    "operationName": "Microsoft.AspNetCore.Hosting.HttpRequestIn"
  }
}