spring-cloud-netflix | Integration with Netflix OSS components | Microservice library

 by   spring-cloud Java Version: 4.0.3 License: Apache-2.0

kandi X-RAY | spring-cloud-netflix Summary

kandi X-RAY | spring-cloud-netflix Summary

spring-cloud-netflix is a Java library typically used in Architecture, Microservice, Spring Boot, Spring applications. spring-cloud-netflix has no bugs, it has build file available, it has a Permissive License and it has high support. However spring-cloud-netflix has 1 vulnerabilities. You can download it from GitHub, Maven.

this project provides netflix oss integrations for spring boot apps through autoconfiguration and binding to the spring environment and other spring programming model idioms. with a few simple annotations you can quickly enable and configure the common patterns inside your application and build large distributed systems with battle-tested netflix components. the patterns provided include service discovery (eureka). service discovery: eureka instances can be registered and clients can discover the instances using spring-managed beans. service discovery: an embedded eureka server can be created with declarative java configuration. to build the source you will need to install jdk 1.8. spring cloud uses maven for most build-related activities, and you should be able to get off the ground quite quickly by cloning the project you are interested in and typing. the projects that require middleware (i.e. redis) for testing generally require that a local instance of [docker] www.docker.com/get-started) is installed

            kandi-support Support

              spring-cloud-netflix has a highly active ecosystem.
              It has 4746 star(s) with 2418 fork(s). There are 370 watchers for this library.
              There were 5 major release(s) in the last 12 months.
              There are 75 open issues and 3111 have been closed. On average issues are closed in 228 days. There are 17 open pull requests and 0 closed requests.
              It has a negative sentiment in the developer community.
              The latest version of spring-cloud-netflix is 4.0.3

            kandi-Quality Quality

              spring-cloud-netflix has 0 bugs and 0 code smells.

            kandi-Security Security

              spring-cloud-netflix has 1 vulnerability issues reported (0 critical, 1 high, 0 medium, 0 low).
              spring-cloud-netflix code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              spring-cloud-netflix is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              spring-cloud-netflix releases are available to install and integrate.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              spring-cloud-netflix saves you 25515 person hours of effort in developing the same functionality from scratch.
              It has 49690 lines of code, 4227 functions and 605 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed spring-cloud-netflix and discovered the below as its top functions. This is intended to give you an instant insight into spring-cloud-netflix implemented functionality, and help decide if they suit your requirements.
            • Retrieves the last n registered instance
            • Populates the dashboard with the given request
            • Utility method to populate the list of peers
            • Adds the data to the model
            • Gets the status of the cluster
            • Populate instance info
            • Populate the apps
            • Start the downloader
            • Download a file from a URL
            • Starts the Eureka server
            • Return the names of the Eureka services
            • Returns a HttpClientHttpRequestFactory
            • The Eureka instance config bean
            • Registers an instance
            • Send a heartbeat
            • Returns a String representation of the management metadata
            • Register a jersey filter
            • Randomize a list of hostnames
            • Create a filter bean for Eureka
            • Creates instance info from Eureka instance config
            • Creates Jersey application using Eureka server
            • Gets the instances for a given service
            • Registers the Eureka client config bean
            • Get Eureka status
            • Returns the list of Eureka service urls
            • Gets the metadata
            Get all kandi verified functions for this library.

            spring-cloud-netflix Key Features

            No Key Features are available at this moment for spring-cloud-netflix.

            spring-cloud-netflix Examples and Code Snippets

            How to collect turbine stream from a Standalone Turbine Stream application
            Lines of Code : 11dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                host: localhost
                port: 5672
                username: guest
                password: guest

            Community Discussions


            Spring Boot Microservice zuul Forwarding error
            Asked 2022-Mar-22 at 12:00

            I have created micro service using spring boot and implment zuul proxy so when I call url via zuul proxy and somehow my service is down I get com.netflix.zuul.exception.ZuulException

            com.netflix.zuul.exception.ZuulException: Forwarding error at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.handleException(RibbonRoutingFilter.java:198) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE] at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:173) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE] at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.run(RibbonRoutingFilter.java:119) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE] at com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:117) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.FilterProcessor.route(FilterProcessor.java:118) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.ZuulRunner.route(ZuulRunner.java:96) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.http.ZuulServlet.route(ZuulServlet.java:116) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:81) ~[zuul-core-1.3.1.jar:1.3.1] at org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:166) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:45) [spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE] at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.31.jar:9.0.31] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.31.jar:9.0.31]



            Answered 2022-Mar-22 at 12:00

            Zuul API gateway has been deprecated and now in maintenance mode. so it not recommended to use it.

            You should use latest Spring Cloud Gatway in your project. if you want to use gateway

            learn more about spring cloud gateway here :https://www.baeldung.com/spring-cloud-gateway

            Source https://stackoverflow.com/questions/71570579


            Zuul unable to route to application registered in eureka server
            Asked 2022-Feb-20 at 19:00

            I am developing a Microservice were I am trying to use the Zuul proxy to route through the services. But for some reason Zuul unable to route to the app registered in eureka. I have tried increasing hystrix and Zuul timeout but nothing working

            Exception Thrown

            com.netflix.zuul.exception.ZuulException: Forwarding error at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.handleException(RibbonRoutingFilter.java:198) ~[spring-cloud-netflix-zuul-2.2.10.RELEASE.jar:2.2.10.RELEASE]

            Zuul application.yml



            Answered 2022-Feb-20 at 18:48

            After Some research I found that Ribbon, Zuul are in maintenance mode and we won't get any new version and spring also came up with alternative for Ribbon, Zuul etc. Please refer this link for spring alternative for load balancing, proxy server etc

            And for this issue I used spring cloud gateway instead of Zuul which is the alternative provided by spring

            Required Dependency

            Source https://stackoverflow.com/questions/71195587


            Maven: Classpath dependencies and starters?
            Asked 2021-Sep-10 at 21:29

            in this tutorial https://usha-dewasi.medium.com/service-registry-using-spring-cloud-netflix-eureka-cba573c693b under "Installing Eureka on Server Side" there is the instruction to

            Add org.springframework.boot:spring-cloud-starter-eureka-server on your classpath.

            Now as a beginner with maven and spring I don't know what is meant both with the term starter, nor do I know how to "add," what is obviously a groupId and an artifactId on "your classpath."

            I just found the term being used here https://docs.spring.io/spring-boot/docs/current/reference/html/getting-started.html as well as in this (https://maven.apache.org/plugins-archives/maven-surefire-plugin-2.12.4/examples/configuring-classpath.html) maven-doc entry for classpaths.

            I am not exactly sure what I am supposed to do or how to change the pom.xml accordingly. I don't find an explanation anywhere. Would be glad for your help.

            Yours sincerely, von Spotz



            Answered 2021-Sep-10 at 21:29

            With "add X on our classpath" in a maven project they mean adding the X dependency on your pom.xml as follows:

            Source https://stackoverflow.com/questions/69130959


            Maven Fails To Find Dependency
            Asked 2021-Jun-29 at 13:28

            This is a really odd error that I am getting while doing a maven build. I am encountering an error like this:



            Answered 2021-Jun-29 at 13:28

            I feel really silly about this now. It turns out someone uploaded something to our internal artifactory for commons-lang that was not really commons-lang. No idea how that happened, but it was a never-ending source of frustration for me. If anyone else ever sees something that doesn't make sense like this, compare the size of the jar in your .m2 folder with one downloaded directly from maven central. That would have saved me a lot of time.

            Source https://stackoverflow.com/questions/68068614


            How to inject custom Http client to Spring Cloud openfeign?
            Asked 2021-Jun-14 at 03:22

            I'm trying to provide CloseableHttpClient to Spring Cloud OpenFeign. Spring Cloud Open Feign Documentationsays it supports CloeableHttpClient. Spring documentation doesn't give any example of actually replacing the HTTP client.

            Basically, I'm providing SSLContext to the HTTP client and I want Feign to use this SSLContext loaded client. How to inject this CloseableHttpClient into the Feign?

            Following is my relevant configuration:

            1. I'm using SpringBootApp


            Answered 2021-Jun-09 at 05:01

            You need to put @Configuration on top of FeignConfig which should make it work I believe.

            Source https://stackoverflow.com/questions/67896483


            Jhipster Spring Boot 2 instances of a microservice on different databases
            Asked 2021-May-25 at 19:18

            In my project I'm using Jhipster Spring Boot and I would like to start 2 instances of one microservise at the same time, but on different instances of a database (MongoDB).

            In this microservice I have classes, services, rests that are used for collections A, B C,.. for which now I would like to have also history collections A_history, B_history, C_history (that are structured exactly the same like A, B, C) stored in separated instance of a database. It makes no sense to me to create "really separated" microservice since I would have to copy all logic from the first one and end up with doubled code that is very hard to maintain. So, the idea is to have 2 instances of the same microservice, one for A, B, C collections stored in "MicroserviceDB" and second for A_history, B_history, C_history collections stored in "HistoryDB".

            I've tried with creating 2 profiles, but when I start from a command line History microservice, it is started ok, but if I also try to start "original" microservice at the same time, it is started but immediately history service becomes "original" microservice. Like they cannot work at the same time.

            Is this concept even possible in microservice architecture? Does anyone have an idea how to make this to work, or have some other solution for my problem?





            Answered 2021-May-20 at 09:18

            In general, this concept should be easily achievable with microservices and a suiting configuration. And yes, you should be able to use profiles to define different database connections so that you can have multiple instances running.

            I assume you are overwriting temporary build artifacts, that's why it is not working somehow. But that is hard to diagnose from distance. You might consider using Docker containers with a suiting configuration to increase isolation in this regard.

            Source https://stackoverflow.com/questions/67616962


            I am getting this error java.lang.NoClassDefFoundError: org/w3c/dom/ElementTraversal
            Asked 2021-Apr-15 at 10:35

            Before anyone mark this as a duplicate, I referenced this stackoverflow question before posting here, I tried all solutions in that thread but still it is not working for me. I am migrating a legacy java project into spring boot application. When I start the server I am getting this stacktrace,



            Answered 2021-Apr-08 at 15:49

            This might have to do with you not using Generics with your java Collections

            Source https://stackoverflow.com/questions/67006359


            Spring Boot App doesn't start when the first eureka server is down
            Asked 2021-Jan-25 at 10:55

            i've Eureka cluster with multiple servers:



            Answered 2021-Jan-25 at 10:55

            I found workaround. I just override bean:

            Source https://stackoverflow.com/questions/65719753


            EnableAuthorizationServer is working and is not deprecated
            Asked 2021-Jan-07 at 14:28

            I was following this guide which mentions that the @EnableAuthorizationServer is deprecated. But when I created a project with the following dependencies, I am not getting the deprecated messages. Is there something I am missing here.

            Depedencies - Output from mvn dependency:tree



            Answered 2021-Jan-07 at 14:28

            Well the correct term is that @EnableAuthorizationServer is in maintenance mode which basically means deprecated. As in there will be no added features or updates.

            The story goes basically as follows.

            During Spring 4 i believe there was a single person that maintained the oauth2 part of spring security. When Spring security 5 was launched the team at pivotal decided to do a major overhaul of spring security and the oauth2 parts. So what they did was to drop Authorisation server support, and instead focus on the Resource server support at first.

            Spring announcement of dropping Authorisation server support

            You have pulled in spring-cloud-starter-oauth2 which in turn har a peer dependency on spring-security-oauth2-autoconfigure which in turn pulls in spring-security-oauth2.

            Here Spring clearly states that if you wish to use spring-security-oauth2 they will help you out, but it is in maintenance mode.

            The choice to not support it was made because an authorization server is like owning a product. Spring doesn't maintain their own database, or own Ldap server etc. There are plenty of auth servers out there that can be used, okta, curity, github, fb, google, etc, etc.

            But Spring has actually reevaluated that choice and decided to start a community developed open source authorisation server

            So you have 3 choices:

            • use the old, that is in maintenance mode
            • use a 3rd party vendor, github, fb, google, okta, curity etc.
            • try out the new open source authorisation server

            Source https://stackoverflow.com/questions/65590263


            How to add dynamic header values to feign-client through Feign interceptor from current request?
            Asked 2020-Dec-09 at 07:12

            I am new to Spring-cloud-openfeign. I am trying to build a micro-service based system. To make things look simpler, just take 3 of those services, which are Gateway, Service-A, Service-B. When I make a request from my frontend to Service-A through Gateway, the gateway will verify the JWT token in the request, and extract user information (userId) from the token and will put in the request as a header and will forward it to Service-A. Now Service-A will call service-B through feign-client. Now during this inter-service call through feign-client, I am trying to forward userId from the current request in Serice-A to outgoing request to service-B through a Feign RequestIterceptor. But I am not able to retrieve current request in the interceptor. I tried the solution in this stack_over_question, but it doesn't seem to work. I think I face the same problem as of this github_issue. I could see some blogs and articles advising to use RequestContextListner or RequestContextFilter to get the current request out of the Dispatcher-Servlet, But I couldn't find out how to use or implement it. Following is the code I am currently using



            Answered 2020-Dec-09 at 07:12

            I had similar use case where I need to get header in the interceptor. The code is similar to below.

            Source https://stackoverflow.com/questions/65124153

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install spring-cloud-netflix

            You can download it from GitHub, Maven.
            You can use spring-cloud-netflix like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the spring-cloud-netflix component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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