Sending multipart and form params to a SpringMVC controller does not work

[Yacov Schondorf]

I am trying to send a request that has form and multipart params to a spring MVC controller. The problem is that I am getting an error from the server that a required parameter is not present, although I see in the logging that I am sending it.

The code:

protected Response doMultiPartPostRequest(Map<String,String> headers, List<Cookie> cookies, String uri, String sessionId,

                                         Map<String,String> formParams, Map<String, File> multiPartParams){

Response response = null;

if(formParams == null){

formParams = new HashMap<>();

}

formParams.put("sid", sessionId);

RequestSpecification specification = given();

if (multiPartParams != null) {

for (Entry<String, File> namePathPair : multiPartParams.entrySet()) {

specification = specification.multiPart(namePathPair.getKey(), namePathPair.getValue());

}

}

if (formParams != null) {

specification = specification.formParams(formParams);

}

if (!isDevEnv()) {

specification  = specification.cookies(new Cookies(cookies));

}

response = specification.log().all().sessionId(sessionId).headers(headers).when().post(uri);

response.then().log().all();

return response;

}

Logging + response:

Request method: POST

Request path: https://127.0.0.1/.../uploadCerts

Request params: <none>

Query params: <none>

Form params: deviceID=28d520aec6f84d2fa771316470c60b73

sid=vzt27whgrsxz13i12fwptfyrv

Path params: <none>

Headers: Content-Type=application/json

...

Cookies: JSESSIONID=vzt27whgrsxz13i12fwptfyrv

Body: <none>

HTTP/1.1 400 Required String parameter 'deviceID' is not present

...

com.jayway.restassured.path.json.exception.JsonPathException: Failed to parse the JSON document

at com.jayway.restassured.path.json.JsonPath$ExceptionCatcher.invoke(JsonPath.java:876)

at com.jayway.restassured.path.json.JsonPath$4.doParseWith(JsonPath.java:837)

at com.jayway.restassured.path.json.JsonPath$JsonParser.parseWith(JsonPath.java:917)

at com.jayway.restassured.path.json.JsonPath.get(JsonPath.java:182)

at com.jayway.restassured.path.json.JsonPath.getBoolean(JsonPath.java:194)

at com.websense.tsaas.portal.ui.devices.DevicesControllerRESTTest.testCertificateUpdate(DevicesControllerRESTTest.java:663)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:483)

at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)

at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

at org.junit.runner.JUnitCore.run(JUnitCore.java:160)

at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74)

at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211)

at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)

Caused by: groovy.json.JsonException: Lexing failed on line: 1, column: 1, while reading '<', no possible valid JSON value or punctuation could be recognized.

at groovy.json.JsonLexer.nextToken(JsonLexer.java:82)

at groovy.json.JsonLexer$nextToken.call(Unknown Source)

at com.jayway.restassured.internal.path.json.ConfigurableJsonSlurper.parse(ConfigurableJsonSlurper.groovy:99)

at com.jayway.restassured.internal.path.json.ConfigurableJsonSlurper$parse.callCurrent(Unknown Source)

at com.jayway.restassured.internal.path.json.ConfigurableJsonSlurper.parseText(ConfigurableJsonSlurper.groovy:85)

at com.jayway.restassured.path.json.JsonPath$4$1.method(JsonPath.java:839)

at com.jayway.restassured.path.json.JsonPath$ExceptionCatcher.invoke(JsonPath.java:874)

... 26 more

Any ideas?

Thanks in advance...

[Johan Haleby]

The log seem to indicate that you only supply form parameters to rest assured in your example (and no multi-parts). Perhaps your service require multipart? Would be easier if you could also show the code of the actual HTTP endpoint. Anyways, form parameters are automatically transformed to multi-part parameters if you have at least one multi-part parameter set. If you don't have any multi-part parameters set the form parameters will not be sent as multi-part form data but as "normal" form data (essentially key values in the request body). So if you want to force multi-part form data you probably should merge the "multiPartParams" and "formParams" maps and use the "multiPart" method for both. 

And a tip. Instead of using the DSL/API (given/when/then syntax) you could create a request spec using the RequestSpecBuilder and the response spec using the ResponseSpecBuilder and then do:

given(requestSpec, responseSpec).when().post(uri);

It's a matter of taste though and you should be fine doing what you're doing today as well.

/Johan

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