# Add custom serchable fields in logs **URL:** \ **Category:** APM\ **Tags:** java\ **Created:** [May 23, 2020, 1:54pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000 "2020-05-23T13:54:19Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Daniele\_Renda](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/daniele_renda/32/39939_2.png) [@Daniele\_Renda](https://discuss.elastic.co/u/Daniele_Renda)\ **Post date:** [May 23, 2020, 1:54pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/1 "2020-05-23T13:54:20Z")
I'm using Java APM client in my Spring Boot 2.2.7 application. It's a multi-tenant application, so I'd like to set (dynamically) tenant's id to the current transaction. So far I configured the agent like this: ```auto # ********************************************************************? # Configuration file for APM ElasticSearch # https://www.elastic.co/guide/en/apm/agent/java/current /configuration.html#_option_reference # ******************************************************************** recording = true service_name = my-server application_packages = my.package server_urls = https://myurl.com secret_token = secretToken # PERFORMANCE VALUES transaction_sample_rate = 0.50 transaction_max_spans = 500 capture_headers = false metrics_interval = 60s enable_jaxrs_annotation_inheritance = false profiling_inferred_spans_enabled = false ignore_exceptions = javax.validation.ConstraintViolationException ``` and this is the Spring config class: ```auto @Profile({"dev", "stage", "prod"}) @Component @Order(Ordered.HIGHEST_PRECEDENCE) @Log4j2 public class ApmConfig { @Autowired private Environment environment; @PostConstruct public void init() { log.info("Starting APM Java agent..."); Map propertyMap = new HashMap<>(); String activeProfile = System.getProperty("spring.profiles.active"); try { final Properties props = new Properties(); try (InputStream resourceStream = ElasticApmAttacher.class.getClassLoader().getResourceAsStream("elasticapm-" + activeProfile + ".properties")) { if (resourceStream != null) { props.load(resourceStream); for (String propertyName : props.stringPropertyNames()) { propertyMap.put(propertyName, props.getProperty(propertyName)); } } } catch (IOException e) { log.error("", e); } //Add environment value propertyMap.put("environment", activeProfile); } catch (Exception e) { log.error("", e); } ElasticApmAttacher.attach(propertyMap); } } ``` I didn't touch anything else in my application and I'd like to continue to do so. Am I wondering if is there a way to set additional information (like context, but searchable) and what's the best place where I can set them in the Spring flow. I guess I should use labels ([https://www.elastic.co/guide/en/apm/agent/java/current/public-api.html#api-span-add-tag](https://www.elastic.co/guide/en/apm/agent/java/current/public-api.html#api-span-add-tag)) but I'd like to have some hint about it, expeciallly how to integrate them in a multi-tenant monolithic application where every request could be from a different tenant. Thanks ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [May 24, 2020, 1:57pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/2 "2020-05-24T13:57:22Z")
> [@Daniele\_Renda](#): > > I guess I should use labels but I'd like to have some hint about it This contradicts that: > [@Daniele\_Renda](#): > > I didn't touch anything else in my application and I'd like to continue to do so. You would need to modify you app code in order to add labels. If this is an option, find a place in your code that: 1. is being executed during traced transactions 2. your tenant ID is accessible at Than add the agent's [public API](https://www.elastic.co/guide/en/apm/agent/java/current/public-api.html) as a dependency of your app, and in your code, get the [current transaction](https://www.elastic.co/guide/en/apm/agent/java/current/public-api.html#api-current-transaction) and add a label to it. ---
**Author:** ![Daniele\_Renda](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/daniele_renda/32/39939_2.png) [@Daniele\_Renda](https://discuss.elastic.co/u/Daniele_Renda)\ **Post date:** [May 24, 2020, 2:33pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/3 "2020-05-24T14:33:42Z")
Hi, I ended up to add this code in my Filter (OncePerRequestFilter): ```auto private void decorateApmInformation(String tenantId, String userSid, String username) { // ******************************************************************** // ADDITIONAL INFORMATION FOR APM METRICS // https://www.elastic.co/guide/en/apm/agent/java/current/public-api.html // ******************************************************************** try { Span currentSpan = ElasticApm.currentSpan(); if (currentSpan != null) { currentSpan.addLabel("tenantId", tenantId); } Transaction currentTransaction = ElasticApm.currentTransaction(); if (currentTransaction != null) { currentTransaction.addLabel("tenantId", tenantId); currentTransaction.setUser(userSid, null, username); } } catch (Exception e) { logger.error("", e); } } ``` It works, I hope it doesn't hit against any best practice 😉 ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [May 24, 2020, 2:36pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/4 "2020-05-24T14:36:40Z")
Looks good, only make sure the `currentSpan` and `currentTransaction` are not the same if you want to avoid the possibility to adding twice to transactions. ---
**Author:** ![Daniele\_Renda](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/daniele_renda/32/39939_2.png) [@Daniele\_Renda](https://discuss.elastic.co/u/Daniele_Renda)\ **Post date:** [June 1, 2020, 1:00pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/5 "2020-06-01T13:00:36Z")
Thanks for your hint. How can I be sure there are not the same? Should I check their ID? ``` try { Span currentSpan = ElasticApm.currentSpan(); Transaction currentTransaction = ElasticApm.currentTransaction(); if (currentTransaction != null) { currentTransaction.addLabel("tenantId", tenantId); currentTransaction.setUser(userSid, null, username); } if (currentSpan != null && !currentSpan.getId().equalsIgnoreCase(currentTransaction.getId())) { currentSpan.addLabel("tenantId", tenantId); } } catch (Exception e) { logger.error("", e); } ``` Thanks ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [June 1, 2020, 3:21pm UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/6 "2020-06-01T15:21:30Z")
Yes, ID equality is the way to go 👍 ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 22, 2020, 11:21am UTC](https://discuss.elastic.co/t/add-custom-serchable-fields-in-logs/234000/7 "2020-06-22T11:21:30Z")
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