reactor-netty | TCP/HTTP/UDP/QUIC client/server with Reactor over Netty | Websocket library
kandi X-RAY | reactor-netty Summary
kandi X-RAY | reactor-netty Summary
Reactor Netty offers non-blocking and backpressure-ready TCP/HTTP/UDP/QUIC clients & servers based on Netty framework.
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Top functions reviewed by kandi - BETA
- Evict the connection in the background
- Drains the pool
- Find a connection to the queue
- Removes a slot from the queue
- Handles the next response
- Indicates that the response should be redirected
- Handle an HTTP response
- Resolve and connect to a remote address
- Do a connect
- Write message to access log
- Returns the long id of the socket
- Register metrics
- Run pipelined operations
- Handles a message
- Configure a pipeline of http11 or cleartext extents
- Handles outgoing messages
- Send message
- Destroys the poolable
- Handles a channel read
- Acquires a connection from the server
- Sends a request to the client
- Sends a message
- Handles message
- Disposes this Mono
- Add stream handlers
- Writes the message to the access log
reactor-netty Key Features
reactor-netty Examples and Code Snippets
final ClientSecretCredential clientSecretCredential = new ClientSecretCredentialBuilder()
.clientId()
.clientSecret()
.tenantId()
.httpClient(new NettyAsyncHttpClientBuilder().proxy(
new ProxyOptions(ProxyOptions.Ty
Community Discussions
Trending Discussions on reactor-netty
QUESTION
My application set up is mentioned as part of issue# Correct way of using spring webclient in spring amqp where I am trying to use Spring webclient to make API calls in Spring AMQP rabbit MQ consumer threads. Issue seems to be that parallel flux blocking call just stalls or takes a very long time after first few requests are fired.
To simulate this, I did below minimalistic set up -
Dependencies used
...ANSWER
Answered 2022-Mar-08 at 11:44Seems issue was because the underlying connection was not being properly released in case webclient downstream call responded with error status. While using "exchange" with "webclient", it seems we need to ensure that the response is properly released; else it can lead to connections leak. Below are the changes that seemed to fix this issue -
Replace
QUESTION
I am running a Spring Boot app that uses WebClient for both non-blocking and blocking HTTP requests. After the app has run for some time, all outgoing HTTP requests seem to get stuck.
WebClient is used to send requests to multiple hosts, but as an example, here is how it is initialized and used to send requests to Telegram:
WebClientConfig:
...ANSWER
Answered 2021-Dec-20 at 14:25I would propose to take a look in the RateLimiter direction. Maybe it does not work as expected, depending on the number of requests your application does over time. From the Javadoc for Ratelimiter: "It is important to note that the number of permits requested never affects the throttling of the request itself ... but it affects the throttling of the next request. I.e., if an expensive task arrives at an idle RateLimiter, it will be granted immediately, but it is the next request that will experience extra throttling, thus paying for the cost of the expensive task." Also helpful might be this discussion: github or github
I could imaginge there is some throttling adding up or other effect in the RateLimiter, i would try to play around with it and make sure this thing really works the way you want. Alternatively, consider using Spring @Scheduled to read from your queue. You might want to spice it up using embedded JMS for further goodies (message persistence etc).
QUESTION
I am trying to upload image to azure blob using spring boot application. I am getting below errors
2022-02-02 23:28:39 [qtp1371397528-21] INFO 16824 c.a.c.i.jackson.JacksonVersion - info:Package versions: jackson-annotations=2.12.4, jackson-core=2.12.4, jackson-databind=2.12.4, jackson-dataformat-xml=2.12.4, jackson-datatype-jsr310=2.12.4, azure-core=1.21.0
2022-02-02 23:28:39 [qtp1371397528-21] WARN 16824 org.eclipse.jetty.server.HttpChannel - handleException:/api/v1/project/options/image/upload
org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: io/netty/handler/logging/ByteBufFormat
Java code
...ANSWER
Answered 2022-Feb-03 at 21:09I was facing the very same problem with azure dependencies last few days. Upgrading spring-boot-starter-parent
to version 2.5.5
fixed it for me.
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.
QUESTION
ANSWER
Answered 2022-Jan-27 at 11:29The problem was occurring because the default authentication manager wasn't working for me, I had to implement one specifically for my problem.
QUESTION
I am experiencing this issue java.lang.IllegalArgumentException: MySQL only supports single generated value. in all my insert queries not just this table. I am using jooq 3.15 and r2dbc. what could be the issue
...ANSWER
Answered 2022-Jan-22 at 10:21So after some research I found out the exception is returned if no columns are returned in r2dbc. Issue was either insert was not happening or jooq could not return generated key. Turns out its the latter and it's a known jooq issue its documented very well here https://github.com/jOOQ/jOOQ/issues/2943 but there is a workaround for returning the generated value which is what I wanted in the first place. so below is the refactored code and its working now.
QUESTION
I'm using Spring Boot 2.5.6 and Spring WebFlux. In my business case, I need to use the HTTP request body in two different forms:
- Raw JSON string
- Already parsed Java DTO
There are my RestContoller
:
ANSWER
Answered 2021-Nov-01 at 12:54Having multiple @RequestBody
is not possible. If you really need both original JSON and its serialized version the best you can do is receive the request body as a plain String
and then convert it to the corresponding Java object as follows:
QUESTION
As you can see, I have a simple default test. For some unknown reason for me, it does not load the application context, if I remove @SpringBootTest annotation everything works, but without it I cannot do bean injection, so I need this annotation.
test
...ANSWER
Answered 2022-Jan-07 at 10:36It seems that you have flyway dependency in your pom. When using @SpringbootTest, It will initialize the whole application context. According to the Springboot Autoconfigure mechanism, the application detects the Flyway module and tries to create a bean named flyway:
Error creating bean with name 'flyway'
And then when constructing the flyway bean, the flyway Factory needs a datasource bean.
QUESTION
I'm using spring-cloud-starter-gateway
and spring-boot-starter-webflux
from spring-cloud-dependencies:2020.0.4
, packing everything in a docker image.
All my routes are written with RouteLocatorBuilder
from spring cloud.
Scanning the image with Grype, I get the following vulnerabilites:
Latest reactor-netty-http:1.0.13
still doesn't have these fixed.
I'd like to resolve these issues. Any suggestions?
[UPDATE]
Wrote to Grype's Github for further investigation. It does seem these are false positives, as Andreas mentioned below. Enforcing latest netty
in my BOM for now.
ANSWER
Answered 2021-Nov-11 at 10:26I suppose these are false positives as reactor-netty-http
did not had the vulnerability it was HttpObjectDecoder.java in Netty before 4.1.44
. The regex provided by https://nvd.nist.gov/vuln/detail/CVE-2019-20444 are sometimes too unspecific.
According to the docs you can suppress the false positives following this guide: https://github.com/anchore/grype#specifying-matches-to-ignore
If you are using maven
you could just add (but you don't have to because these are false positives):
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