kandi X-RAY | spring-webflux Summary
kandi X-RAY | spring-webflux Summary
spring-webflux
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Top functions reviewed by kandi - BETA
- Divides by the given request
- Extracts the operands from the request
- Helper method to calculate the operands
- List all users
- Returns a list of all users
- Update a single user
- Create or update a user
- Deletes the user with the given id
- Delete user by id
- Get user by id
- Gets user by id
- Entry point
- Convenience method to get hello message
- Map a random event
- Create a new user
- The web socket handler
- Initialization
- Multiply two servers
- Subtract server response
- Route router function
- Gets users by ids
- Add two requests
- Parse an operand
- Handles ECHO messages
spring-webflux Key Features
spring-webflux Examples and Code Snippets
Community Discussions
Trending Discussions on spring-webflux
QUESTION
I am trying to learn Spring webflux. I have written the following code to test the performance of reactive programming. Here is my controller of one service:
...ANSWER
Answered 2021-Jun-09 at 05:09By default WebClient runs with a connection pool. The default settings for the pool are 500 max connections and max 1000 pending requests. You have JMeter and try to simulate 10000 but you do not specify how you distribute the load. You may need to increase the max pending requests. Have a look at this documentation and this documentation.
If you want to configure the WebClient then you need:
QUESTION
I've created a Java Spring Boot service using the WebFlux reactive module, H2 in-memory database, and R2DBC reactive driver.
When I run the service, it fails with an "Unable to create a ConnectionFactory" error:
...ANSWER
Answered 2021-May-25 at 23:41OK, so I went back through my project file by file, diffing each file with a copy of the repo I was using as a guide. I found some extra database connection configuration code I thought I'd gotten rid of. As soon as I removed it, problem solved. Thanks to everyone who took a look and offered suggestions.
QUESTION
I have this server endpoint using spring-webflux and I would like to return ServerResponse.badRequest() when the serverRequest receives a wrong parameter. The request curl -s "http://localhost:8080/4?a=5&b=3"; echo for instance, contains the right parameters. But the request curl -s "http://localhost:8080/one?a=5&b=3"; echo contains a string instead of an Integer. Then the conversion new BidRequest(Integer.parseInt(tuple2.getT1()), tuple2.getT2().toSingleValueMap()) will throw an error.
I was doing .onErrorReturn(new BidRequest(0, null)) but now I want to implement some operation that return ServerResponse.badRequest(). So I added in the end .onErrorResume(error -> ServerResponse.badRequest().build()) in the end, but It is not working. I also added on the place of the code .onErrorReturn() and it does not compile.
ANSWER
Answered 2021-May-06 at 07:49I solved based on this answer using flatmap and returning a Mono.just() or a Mono.error(new ResponseStatusException(HttpStatus.BAD_REQUEST));.
QUESTION
As per title I am setting up webflux config like this
...ANSWER
Answered 2021-Apr-30 at 08:37By default, Spring Security converts the items in the scope or scp claim and uses the SCOPE_ prefix. If your application is a pure OAuth2 Resource Server, you can change both conventions by defining a custom ReactiveJwtAuthenticationConverter bean.
For example, to export authorities from a roles scope and using the `` prefix (since ROLE_ is already part of your role name), you can define the following bean. Spring Security will pick it up automatically, you don't need to reference it from your SecurityWebFilterChain configuration.
QUESTION
I have been trying to use ReactiveElasticsearchClient to index some documents in my spring application. My application is stuck indefinitely when I am trying to run the jar with command java -jar reactive-es-1.0-SNAPSHOT.jar application.ReactiveEsApplication
Here's the pom.xml file
...ANSWER
Answered 2021-Apr-30 at 16:02The problem is that you are mixing versions of the libraries which do not match and do not work together.
You define the parent as Spring Boot 2.3.5, a version which uses Spring 5.2 but later define the webflux version to 5.3.6. The Spring Data Elasticsearch version 4.1.8 also is built with Spring 5.3.2. I didn't check the recactor and netty versions in detail, but there probably is some conflict as well - it seems that in your pom you defined these dependencies with the versions from Spring Boot 2.4.5 but keep the parent version on 2.3.5.
Your application runs with the following pom (I set the parent to 2.4.5 and removed unneeded explicit dependencies):
QUESTION
I'm trying to upgrade a project from SpringCloud BOM 2020.0.1 to 2020.0.2
When I change the BOM and re-build, I get an error in JUnit tests, saying that the new parameter spring.config.import is not set for configserver.
This project is not a ConfigServer, neither use ConfigServer (commented config client)
This is the reported error in tests contextLoads()
ANSWER
Answered 2021-Mar-29 at 08:42I have noted the same problem after upgrading to SpringCloud 2020.0.2
Adding spring.cloud.config.enabled=false in the tests solved the issue.
E.g.:
QUESTION
This is my first time using spring-webflux with SpringBoot. My goal is to create an API that accepts a list of Users in JSON format in the body of a POST and return a response with that list also in JSON format ordered by a date field. The ordering is not a problem but I do not know very well how to make this architecture. So far I have:
UserWebfluxApplication (with the @SpringBootApplication)
model/User.java (id, name, surname, creationDate)
service/UserService.java (Interface)
service/UserServiceImpl.java implementing the Interface with the WebClient and with the following method:
...
ANSWER
Answered 2021-Apr-22 at 18:44It seems that you are mixing up the client code with the server code.
I think this would do it:
Controller:
QUESTION
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,
...ANSWER
Answered 2021-Apr-08 at 15:49This might have to do with you not using Generics with your java Collections
QUESTION
I'm using spring-webflux to call an external webservice async, like:
ANSWER
Answered 2021-Apr-12 at 15:56If you definitely want to use onErrorMap() (to map one exception to another) then:
QUESTION
Hi I am learning about Spring Security. I was trying to produce an OAuth2 client and resource server setup, basically following the guildelines on https://dzone.com/articles/implement-oauth-20-easily-with-spring-boot-and-spr .
When attempting to call the endpoint on the resource server from the client, it gives a HTTP 401.
...ANSWER
Answered 2021-Apr-01 at 10:50I have somehow got the setup working by changing the WebClient configuration with a servlet approach.
In summary the issue is on the client side, but not on the resource server.
(1) In the client's WebClient configuration, use ClientRegistrationRepository instead of ReactiveClientRegistrationRepository (i.e. just follow what the tutorial described in https://dzone.com/articles/implement-oauth-20-easily-with-spring-boot-and-spr).
(2) Add the "spring-boot-starter-web" dependency. This step is important because without it, the ClientRegistrationRepository bean cannot be found.
(3) Update the pom.xml to refresh the dependencies.
(4) Amend the use of Webclient in the RestController, use block() to synchronously wait for a response from the resource server.
Though the setup is working, I am not sure how to configure the setup to work with an async approach using ReactiveClientRegistrationRepository. If there is anyone who has any idea please feel free to share, thanks.
P.S. All the changes have been updated to the Git repo mentioned above for your reference
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install spring-webflux
You can use spring-webflux 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-webflux 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 .
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