reactor-core | Non-Blocking Reactive Foundation for the JVM | Reactive Programming library
kandi X-RAY | reactor-core Summary
kandi X-RAY | reactor-core Summary
Non-Blocking Reactive Streams Foundation for the JVM both implementing a Reactive Extensions inspired API and efficient event streaming support. Since 3.3.x, this repository also contains reactor-tools, a java agent aimed at helping with debugging of Reactor code.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Emit the next value
- Emit an error event
- Emits empty messages
- Adds an entry to the queue
- Returns a free item free from the queue
- Emit the given value
- Emit an empty emission
- Scans the core subscriber interface
- Subscribes the core subscriber
- Inserts an element into the queue
- Callback for onError
- Subscribes to the given subscriber
- Offer an item in the queue
- If there is no subscriber return null
- List the steps in the Scannable chain
- Checks if there are any existing classes in the system
- Convenience method for subclasses
- Entry point for execution
- Provides a convenience method for subclasses
- Shortcut for subclasses
- Create a deferred emit function that can be invoked once
- Generate a companion with a single retry signal
- Attempts to emit an event
- Subscribes to the source
reactor-core Key Features
reactor-core Examples and Code Snippets
final ClientSecretCredential clientSecretCredential = new ClientSecretCredentialBuilder()
.clientId()
.clientSecret()
.tenantId()
.httpClient(new NettyAsyncHttpClientBuilder().proxy(
new ProxyOptions(ProxyOptions.Ty
// From reactor-core >= v3.3.4.RELEASE
import reactor.util.retry.Retry;
this.webClient
.post()
.uri(SERVICE_URL)
.body(BodyInserters.fromValue(docRequest))
.retrieve()
.bodyToMono(Document.class)
Community Discussions
Trending Discussions on reactor-core
QUESTION
Trying to build spring-cloud-gcp from https://github.com/GoogleCloudPlatform/spring-cloud-gcp
- Many failed compile/install attempts due to failed tests (unit and checkstyle) - decided to just disable and/or not fail due to tests - great, that worked, entire build (all sub projects) compiled
- Wanted to deploy the spring-cloud-gcp-data-firestore-sample (pom is below) to Cloud run, so changed the parent reference in the pom (as suggested/documented in the pom).
- Now can't compile/install spring-cloud-gcp-data-firestore-sample and get this error "**Non-resolvable import POM: com.google.cloud:spring-cloud-gcp-dependencies:pom:2.3.12.RELEASE was not found in https://repo.maven.apache.org/maven2**"
I've tried:
- Adding additional spring maven repos to the pom (see pom below) - no luck, and based on the error message maven doesn't even seem to be checking the added repo's
- referencing/using different versions of the spring-boot-starter-parent - no luck, nothing changed in the error
- mvn -U clean compile - no luck
Anyone got any ideas? Any suggestions greatly appreciated.
...ANSWER
Answered 2022-Mar-24 at 20:44You are inheriting version for com.google.cloud:spring-cloud-gcp-dependencies
from project.version, which is 2.3.12.RELEASE in your case.
QUESTION
Small question regarding a Spring Webflux Reactive Cassandra application please.
On a setup Spring Boot 2.6.4 with Webflux and reactive Cassandra, I am using the app to insert some data in Cassandra tables.
Things works fine, until when there is a higher load, I am seeing an issue (stack trace attached)
The thing is, reading some documentation, I thought this piece of code would help solve the issue:
...ANSWER
Answered 2022-Mar-05 at 23:29You have configured the wrong option on the driver. METADATA_SCHEMA_REQUEST_TIMEOUT
is the timeout for the requests to retrieve the schema.
The default request timeout for the Java driver is basic.request.timeout
(see reference configuration):
QUESTION
The stack used in the API is: Spring-boot, Spring Webflux, Hibernate Reactive 1.1.3 and Postgresql.
I'd like to extract a string value from a Mono called desiredField and add it to a hashmap. I'm showing the DB, model, repository and the util module where all this is happening.
The JWTUtil is used to generate a JWT token for login purposes in the API. The JWTController is working fine, coming the token in response! The only thing is that a cannot extract de string value from a Mono.
I've tried two approaches. The reactive way, using the subscribe method. And the blocking way using the block method. These two approches are shown below with their own console prints.
In the first approach (the reactive way) I couldn't extract the desiredField from the Mono. The token comes in the response but without the desiredField in the token claims. The desiredField live only inside de stream (see console log prints), outside is null.
In the second approach (blocking way) there are an infinite loop error without getting the token in the response.
Could you help me to extract this value from the Mono?
Thanks in advance!
Postgres:
...ANSWER
Answered 2022-Mar-04 at 15:34The main point here i think is the way you are organizing the code, it seems to me that you are using a reactive framework, but thinking and coding in an imperative way.
If you change the generateToken
and doGenerateToken
to return a Mono, you can do something like the following:
QUESTION
Im trying to send messages to my azure service bus topic using managed identity. None of the messages are sent to the topic. I have no problem when using connectionString instead of credential.
ServiceBusSenderClient
...ANSWER
Answered 2022-Mar-02 at 08:39Please check the below steps if they help to workaround -
java.lang.NoSuchMethodError
majorly occurs due to version conflicts of dependencies.- There may be few methods or libraries not compatible or missing in the project.
- To resolve this, try upgrading or even downgrading the dependent versions.
- In some cases, removing the unnecessary dependencies also works.
- Please check this official java doc of SilentParameter class and its related methods.
- In general,
NoSuchMethodError
error happens if class A expects a method in class B which was compiled but at run time the other classes does not have that method. Here the method can be a third partyjar
library or normal method in the classes. - Sometimes it might be, you have complied the code against a version of some library that can also be the
JDK
itself, but your runtime is having otherversions
and it might be the case of one of the modules where you have added a method, forgot to compile, so at runtime it is using the old version.
QUESTION
Anybody seen this error please advice , from time to time I get this and data not written to the collection: ( mongodb 4.0 , mongodb java driver 4.1 )
...ANSWER
Answered 2022-Feb-21 at 02:48It looks like some other thread called MongoClient.close()
QUESTION
In my application config i have defined the following properties:
...ANSWER
Answered 2022-Feb-16 at 13:12Acording to this answer: https://stackoverflow.com/a/51236918/16651073 tomcat falls back to default logging if it can resolve the location
Can you try to save the properties without the spaces.
Like this:
logging.file.name=application.logs
QUESTION
I am using project reactor with kotlin. As expected, since i am writing kotlin code that calls java code, all type signatures from project reactor's operators are showing up as platform types. e.g.
...ANSWER
Answered 2022-Feb-11 at 15:38Actually the behaviour is by design because @NonNullApi
which is applied to a package from where you are calling the method (map
), doesn't have type use default qualifier, but only METHOD
and PARAMETER
. In particular, it means that the Kotlin compiler doesn't enhance types inside type argument positions, but only whole types in return type and value parameter positions.
It can be proved with the following code:
QUESTION
I am working on a project and trying to use the GraphQL backend server in my SpringBoot application. I have written a client which connects to graphQL backend and creates/fetches the data but when I am trying to pass the variable from the application and pass with a query then it's throwing an error. But it's working fine if I just comment the variable part and hardcode the value directly in query.
Mutation Query- mutation($names: String!) { createList (name: $names){ updated listId name } }
Variable - { "names" : "bagName" }
Java Client -
'''
...ANSWER
Answered 2022-Feb-03 at 22:23It got resolved. There were two issues - 1) with the graphQL schema ad 2) with the WebClient.
I corrected the schema and using the HttpClient instead of WebClient.
QUESTION
I am using Java 17, spring-boot 2.6.3 with spring-webflux and spring-consul dependencies and I have the following class:
...ANSWER
Answered 2022-Jan-30 at 20:06You have annotated your application with @EnableWebFlux
. This indicates that you want to take complete control of WebFlux's configuration. This causes Spring Boot's auto-configuration of WebFlux to back off. Among other things, this means that it won't configure WebFlux to use the context's ObjectMapper
.
You should either remove @EnableWebFlux
to allow Spring Boot to auto-configure WebFlux or you should configure its codecs manually so that they use your ObjectMapper
.
QUESTION
I am developing authentication and authorisation in an environment where I use Spring Cloud Gateway Webflux + OAuth 2.0 the structure to achieve is the following:
As Authorization Server I have my own OAuth server that contains the /login page where I perform the authentication and it is also in charge of generating JWT and as Resource Server I have a WebFlux module that is also in charge of being the Gateway.
The Resource Server configuration is as follows:
application.yml
...ANSWER
Answered 2022-Jan-16 at 05:05You have specified a redirect-uri
for your client of /login
. The page that says "Login with OAuth 2.0" is an auto-generated login page that Spring Security makes available by default under the /login
endpoint. I don't think you intended to redirect there, but you currently have configured your client to do so.
The docs for OAuth 2.0 Login with WebFlux (Reactive) have recently been rewritten to align with the Servlet version, and are worth reading in their entirety.
Read the section of the docs on the Redirection Endpoint. Until you have a basic flow working, I'd recommend setting your redirect-uri
to the default value of "{baseUrl}/login/oauth2/code/{registrationId}"
. Once things work, you can begin exploring how to customize this value. As the docs state, keep in mind that changing your redirect-uri
property for a client also requires customizing the Redirection Endpoint in Spring Security to match.
If you also wish to customize the default Login Page, see the previous section of the docs, OAuth 2.0 Login Page.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install reactor-core
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page