I have Feign and I want to handle any response and send it to Prometheus as custom metric.
I've know about "extends Client.Default" but a default handle for this purpose would be better and safe.
My dependency:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<version>3.1.3</version>
</dependency>
<dependency>
<groupId>io.micrometer</groupId>
<artifactId>micrometer-registry-prometheus</artifactId>
</dependency>
Related
I am migrating from open tracing to open telemetry with jaeger.
Earlier the pom had following:
<dependency>
<groupId>io.opentracing</groupId>
<artifactId>opentracing-api</artifactId>
<version>0.31.0</version>
</dependency>
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-spring-cloud-starter</artifactId>
<version>0.1.13</version>
</dependency>
<dependency>
<groupId>io.jaegertracing</groupId>
<artifactId>jaeger-client</artifactId>
<version>0.31.0</version>
</dependency>
Then I migrated from java 8 spring boot v2.3 to java 17 spring boot v3. So I updated the config as follows:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-sleuth-brave</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-sleuth-otel-autoconfigure</artifactId>
</dependency>
<dependency>
<groupId>io.opentelemetry</groupId>
<artifactId>opentelemetry-exporter-otlp-trace</artifactId>
<version>1.14.0</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-okhttp</artifactId>
<version>1.51.0</version>
</dependency>
the properties are mentioned below:
<java.version>17</java.version>
<spring-boot.version>3.0.0</spring-boot.version>
<spring-cloud.version>2021.0.5</spring-cloud.version>
<spring-cloud-sleuth-otel.version>1.1.0</spring-cloud-sleuth-otel.version>
<opentelemetry-exporter-otlp>1.20.1</opentelemetry-exporter-otlp>
The problem I encounter is that the spans are not logged. I do not see any logs that say span reported, which I usually get before. I haven't connected this to any collector or added any telemetry related configuration. I was following this tutorial () but it says the app should work out of the box.
What kind of configurations am I missing here?
EDIT: The second approach (The open telemetry one) works when spring boot version is 2.5.6 (https://qdnqn.com/opentelemetry-spring-boot-kafka-and-jaeger-in-action/) but not when 3.0. How can make this work in spring boot 3?
How do i use Moshi with Spring boot i have set the json mapper and added the pom but i don't seems to work
spring.http.converters.preferred-json-mapper=moshi
<dependency>
<groupId>com.squareup.moshi</groupId>
<artifactId>moshi</artifactId>
<version>1.9.2</version>
</dependency>
<dependency>
<groupId>com.squareup.moshi</groupId>
<artifactId>moshi-adapters</artifactId>
<version>1.9.2</version>
</dependency>
I am using Spring Boot with Hystrix for my university project.
The problem I have is when I add Netflix Hystrix dependency to pom.xml file and run the program, It throws an Error called AbstractMethodError : null, but without Netflix Hystrix dependency program runs without any error. How can I slove this?
These are my dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
This is due to dependency mismatch. Application is trying to call an abstractt method but it doesn't find that method. So, it is throwing the null exception.
Use two dependency netflix-hystrix-dashboard and hystrix as below.
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
</dependency>
I'm trying to integrate KeyCloak Admin Client with Spring Boot
But there is an exception is thrown when I was trying to create a new account:
Caused by: javax.ws.rs.ProcessingException: RESTEASY003145: Unable to find a MessageBodyReader of content-type application/json and type class org.keycloak.representations.AccessTokenResponse
So I tried to explicitly register Jackson Provider for KeyCloak like this:
KeycloakBuilder
.builder()
.serverUrl(SERVER_URL)
.realm(REALM)
.username(USERNAME)
.password(PASSWORD)
.clientId(CLIENT_ID)
.resteasyClient(new ResteasyClientBuilder()
.providerFactory(factory.register(ResteasyJackson2Provider.class))
.connectionPoolSize(10)
.build())
.build();
But I'm unable to import ResteasyJackson2Provider.class
pom.xml
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-security-adapter</artifactId>
<version>3.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-admin-client</artifactId>
<version>3.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>3.1.3.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-client</artifactId>
<version>3.1.3.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson2-provider</artifactId>
<version>3.1.3.Final</version>
</dependency>
Btw, if I use resteasy-jackson-provider, I got this exception:
javax.ws.rs.client.ResponseProcessingException: javax.ws.rs.ProcessingException: org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "access_token" (Class org.keycloak.representations.AccessTokenResponse), not marked as ignorable
at [Source: org.jboss.resteasy.client.jaxrs.internal.ClientResponse$InputStreamWrapper#7cc842b0; line: 1, column: 18] (through reference chain: org.keycloak.representations.AccessTokenResponse["access_token"])
After a while, I figured out the solution to this problem:
Firstly, I tested it out with the standalone project (empty maven project), the problem still occurs because of resteasy-jackson-provider. It should be resteasy-jackson2-provider (note that its resteasy-jackson2-provider)
For now, I was known that the problem somehow comes from Spring Boot, RESTeasy. And finally, I come up with this working pom.xml:
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-admin-client</artifactId>
<version>3.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-client</artifactId>
<version>3.1.3.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson2-provider</artifactId>
<version>3.1.3.Final</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.8</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.8</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.8</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.8.8</version>
</dependency>
One more thing to note is, you should use the admin-cli client in your Keycloak, because by default, it has Direct Access Grants Enabled on
Btw, this is the Java configuration:
KeycloakBuilder
.builder()
.serverUrl("localhost:8080/auth")
.realm("master")
.username("YOUR_USERNAME")
.password("YOUR_PASSWORD")
.clientId("admin-cli")
.build();
Working example: https://github.com/phuongtailtranminh/Keycloak-Admin-Client-Spring-Boot-Demo
I have a Spring Boot application with a public endpoint implemented with Jersey/JAX-RS annotations.
Hystrix Dashboard is enabled with #EnableHystrixDashboard, HystrixMetricsStreamServlet is registered under "/hystrix.stream" (as in the examples out there).
When accessing .../hystrix.stream the metrics data is available for the HystrixCommands but the starter dashboard page "/hystrix" is empty giving HTTP 404 status code.
Any idea why it is not accessible with Jersey?
If the same is implemented with Spring WebMVC (not Jersey) the dashboard page is available.
My pom.xml
excludes spring-webmvc and depends on jersey
depends on hystrix, event-stream, dashboard, actuator
-
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>com.netflix.hystrix</groupId>
<artifactId>hystrix-core</artifactId>
<version>${hystrix.version}</version>
</dependency>
<dependency>
<groupId>com.netflix.hystrix</groupId>
<artifactId>hystrix-metrics-event-stream</artifactId>
<version>${hystrix.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
<version>1.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
<version>1.0.2.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.netflix.archaius</groupId>
<artifactId>archaius-core</artifactId>
<version>0.6.6</version>
</dependency>