Spring's WebClient hanging on bodyToMono(Pojo) with MockServer
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I want to mock an external API, which I am calling as part of my service. Therefore, I wanted to use the MockWebServer
from okhttp3. My problem is that the call to bodyToMono
works fine, if I want to retrieve the body as string, but does not work when retrieving it as data class. I tried to trim it down using the following code snippet:
public class MockWebClientTest {
private MockWebServer server;
@BeforeEach
public void setUp() throws IOException {
server = new MockWebServer();
server.start(9876);
}
@AfterEach
public void tearDown() throws IOException {
server.shutdown();
}
@Test
public void stringWorks() throws JsonProcessingException {
createMockedTokenCall();
Mono<String> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(String.class);
System.out.println(response.block());
}
@Test
public void classDoesNotWork() {
createMockedTokenCall();
Mono<AuthToken> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(AuthToken.class);
System.out.println(response.block());
}
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
}
class AuthToken {
private String accessToken;
private String refreshToken;
//constructor
}
The first Test (stringWorks
) is working fine and return the correct json representation. However, the second test (classDoesNotWork
) hangs forever on the bodyToMono
call.
My guess is that it has nothing to do with the okttp3 library directly, since I had the same error using Wiremock. The same code works however when targeting a real API endpoint. Unfortunately, I could not find another way to test my calls using WebClient
since Spring currently has no direct mocking support for it (see SPR-15286).
I am really looking forward to help on that matter! Thanks in advance!
General remark: This is basically a more or less copy of test case shouldReceiveJsonAsPojo
in https://github.com/spring-projects/spring-framework/blob/master/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/WebClientIntegrationTests.java
java spring okhttp3 spring-webflux
add a comment |
I want to mock an external API, which I am calling as part of my service. Therefore, I wanted to use the MockWebServer
from okhttp3. My problem is that the call to bodyToMono
works fine, if I want to retrieve the body as string, but does not work when retrieving it as data class. I tried to trim it down using the following code snippet:
public class MockWebClientTest {
private MockWebServer server;
@BeforeEach
public void setUp() throws IOException {
server = new MockWebServer();
server.start(9876);
}
@AfterEach
public void tearDown() throws IOException {
server.shutdown();
}
@Test
public void stringWorks() throws JsonProcessingException {
createMockedTokenCall();
Mono<String> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(String.class);
System.out.println(response.block());
}
@Test
public void classDoesNotWork() {
createMockedTokenCall();
Mono<AuthToken> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(AuthToken.class);
System.out.println(response.block());
}
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
}
class AuthToken {
private String accessToken;
private String refreshToken;
//constructor
}
The first Test (stringWorks
) is working fine and return the correct json representation. However, the second test (classDoesNotWork
) hangs forever on the bodyToMono
call.
My guess is that it has nothing to do with the okttp3 library directly, since I had the same error using Wiremock. The same code works however when targeting a real API endpoint. Unfortunately, I could not find another way to test my calls using WebClient
since Spring currently has no direct mocking support for it (see SPR-15286).
I am really looking forward to help on that matter! Thanks in advance!
General remark: This is basically a more or less copy of test case shouldReceiveJsonAsPojo
in https://github.com/spring-projects/spring-framework/blob/master/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/WebClientIntegrationTests.java
java spring okhttp3 spring-webflux
add a comment |
I want to mock an external API, which I am calling as part of my service. Therefore, I wanted to use the MockWebServer
from okhttp3. My problem is that the call to bodyToMono
works fine, if I want to retrieve the body as string, but does not work when retrieving it as data class. I tried to trim it down using the following code snippet:
public class MockWebClientTest {
private MockWebServer server;
@BeforeEach
public void setUp() throws IOException {
server = new MockWebServer();
server.start(9876);
}
@AfterEach
public void tearDown() throws IOException {
server.shutdown();
}
@Test
public void stringWorks() throws JsonProcessingException {
createMockedTokenCall();
Mono<String> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(String.class);
System.out.println(response.block());
}
@Test
public void classDoesNotWork() {
createMockedTokenCall();
Mono<AuthToken> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(AuthToken.class);
System.out.println(response.block());
}
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
}
class AuthToken {
private String accessToken;
private String refreshToken;
//constructor
}
The first Test (stringWorks
) is working fine and return the correct json representation. However, the second test (classDoesNotWork
) hangs forever on the bodyToMono
call.
My guess is that it has nothing to do with the okttp3 library directly, since I had the same error using Wiremock. The same code works however when targeting a real API endpoint. Unfortunately, I could not find another way to test my calls using WebClient
since Spring currently has no direct mocking support for it (see SPR-15286).
I am really looking forward to help on that matter! Thanks in advance!
General remark: This is basically a more or less copy of test case shouldReceiveJsonAsPojo
in https://github.com/spring-projects/spring-framework/blob/master/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/WebClientIntegrationTests.java
java spring okhttp3 spring-webflux
I want to mock an external API, which I am calling as part of my service. Therefore, I wanted to use the MockWebServer
from okhttp3. My problem is that the call to bodyToMono
works fine, if I want to retrieve the body as string, but does not work when retrieving it as data class. I tried to trim it down using the following code snippet:
public class MockWebClientTest {
private MockWebServer server;
@BeforeEach
public void setUp() throws IOException {
server = new MockWebServer();
server.start(9876);
}
@AfterEach
public void tearDown() throws IOException {
server.shutdown();
}
@Test
public void stringWorks() throws JsonProcessingException {
createMockedTokenCall();
Mono<String> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(String.class);
System.out.println(response.block());
}
@Test
public void classDoesNotWork() {
createMockedTokenCall();
Mono<AuthToken> response = WebClient.create(this.server.url("/").toString())
.get()
.uri("/")
.retrieve()
.bodyToMono(AuthToken.class);
System.out.println(response.block());
}
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
}
class AuthToken {
private String accessToken;
private String refreshToken;
//constructor
}
The first Test (stringWorks
) is working fine and return the correct json representation. However, the second test (classDoesNotWork
) hangs forever on the bodyToMono
call.
My guess is that it has nothing to do with the okttp3 library directly, since I had the same error using Wiremock. The same code works however when targeting a real API endpoint. Unfortunately, I could not find another way to test my calls using WebClient
since Spring currently has no direct mocking support for it (see SPR-15286).
I am really looking forward to help on that matter! Thanks in advance!
General remark: This is basically a more or less copy of test case shouldReceiveJsonAsPojo
in https://github.com/spring-projects/spring-framework/blob/master/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/WebClientIntegrationTests.java
java spring okhttp3 spring-webflux
java spring okhttp3 spring-webflux
edited Nov 16 '18 at 14:13
Michael Altenburger
asked Nov 16 '18 at 12:58
Michael AltenburgerMichael Altenburger
677210
677210
add a comment |
add a comment |
1 Answer
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Ok, after looking at the linked test and doing a bit of comparison, I found the solution (or my bug so to say): I forgot the correct Content-Type
header. So it works using the following:
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setHeader("Content-Type", MediaType.APPLICATION_JSON_VALUE).setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
Apart from me doing a mistake, I really think that this should not result in an infinite hanging of the application...
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Ok, after looking at the linked test and doing a bit of comparison, I found the solution (or my bug so to say): I forgot the correct Content-Type
header. So it works using the following:
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setHeader("Content-Type", MediaType.APPLICATION_JSON_VALUE).setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
Apart from me doing a mistake, I really think that this should not result in an infinite hanging of the application...
add a comment |
Ok, after looking at the linked test and doing a bit of comparison, I found the solution (or my bug so to say): I forgot the correct Content-Type
header. So it works using the following:
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setHeader("Content-Type", MediaType.APPLICATION_JSON_VALUE).setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
Apart from me doing a mistake, I really think that this should not result in an infinite hanging of the application...
add a comment |
Ok, after looking at the linked test and doing a bit of comparison, I found the solution (or my bug so to say): I forgot the correct Content-Type
header. So it works using the following:
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setHeader("Content-Type", MediaType.APPLICATION_JSON_VALUE).setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
Apart from me doing a mistake, I really think that this should not result in an infinite hanging of the application...
Ok, after looking at the linked test and doing a bit of comparison, I found the solution (or my bug so to say): I forgot the correct Content-Type
header. So it works using the following:
private void createMockedTokenCall() {
server.enqueue(new MockResponse().setHeader("Content-Type", MediaType.APPLICATION_JSON_VALUE).setBody("{"accessToken":"BARBAR","refreshToken":"FOOFOO"}"));
}
Apart from me doing a mistake, I really think that this should not result in an infinite hanging of the application...
answered Nov 16 '18 at 14:25
Michael AltenburgerMichael Altenburger
677210
677210
add a comment |
add a comment |
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