Writing unit test cases for WebClient is a little tricky, as it includes the use of a library called the MockWebServer.īelow is the Maven dependency for that library. exchange() method (which, however, I am not recommending). And if you can want to silence the exception and move further, you can use. retrieve() method so that you can find the real cause of the exception and pass it further to the client after wrapping it in a Custom Exception.
MOCKWEBSERVER ENQUEUE SERIES
exchange() method will not be throwing exceptions in case 4xx and 6xx series exception from the other end. onStatus(HttpStatus::is5xxServerError, response -> onStatus(HttpStatus::is4xxClientError, response -> WebClientResponseException when there will be a 4xx and 5xx series exception received. The retrieve method in WebClient throws an To handle errors in WebClient, you can use extend retrieve method. Enqueue request so that mocked response is served : mockServer.enqueue (mockedReponse) You can also do neat things like intercept the request that was made val recordedRequest. Once you start to use it, you will have various methods to put in use for sure. And in that case, you will have to pass a body to the method body there are a lot of methods to play around with. If you have to make a POST call, you can leverage the POST method. The method getPost is the method that will be making the request with the help of the WebClient instance and retrieve the response from an external API call. In the scenario above, we are leveraging the GET method and returning a response from the API call. You can choose HTTP methods, depending upon the nature of the HTTP call, and make a request to it. Please refer to all the methods while you use it. It will then create a WebClient object and also allow you to customize your call with several methods that it offers. In step 3, we have created an instance of WebClient and initialized it by using the WebClient builder. public interface ContentService ", id).retrieve().bodyToMono(Post.class) Create an interface with a method that will return the response from the REST call. Add Spring WebFlux dependency to you POM.XML If you are using any other build tool, please find the dependency on the Internet, as they should be easily available.
Note that I would be using a Maven build tool to show the demo. They’d return in serial, but that’s okay ’cause typically there’s only one. So, make sure you are using Spring WebFlux already if you plan to use WebClient to make API calls. But we could put just one dead letter in the queue, then when the recipient of a dead letter receives it that recipient could re-enqueue the dead letter. The main advantage of using the WebClient is that it is reactive, as it uses Webflux and is also non-blocking by nature and the response will always be returned in either Mono or Flux. You can leverage any of these methods to make calls to the external service asynchronously.
This includes methods like GET, POST, PUT, PATCH, DELETE, and OPTIONS. WebClient is simply an interface that offers methods to make calls to rest services. It was introduced in Spring 5 as part of the web reactive framework that helps build reactive and non-blocking web applications. If you are using Spring WebFlux, you can choose to use WebClient to call external rest services.
StepVerifier.create(mono).expectErrorSatisfies(actual -> assertSame(expected, actual)).verify(DELAY) ĪssertEquals(1, this article, we will talk about the Spring Boot WebClient. onStatus(status -> status.equals(errorStatus), exceptionFunction) uri("/json").accept(MediaType.APPLICATION_JSON) addHeader(contentType) MockWebServer proxy new MockWebServer() proxy.enqueue(response) tBodyDelayTimeMs(timeoutDelay)) ay(10000). 代码示例来源： origin: spring-projects/spring-framework private void prepareResponse(Consumer consumer) ", 5)) You may check out the related API usage on. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Licensed under the Apache License, Version 2.
MOCKWEBSERVER ENQUEUE CODE
The first request is served by the first enqueued response the second request by the second enqueued response and so on. Introduction Here is the source code for io. Source / Minio Java Library for Amazon S3 Compatible Cloud Storage, (C) 2015 Minio, Inc. Scripts response to be returned to a request made in sequence.
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