Spring data REST: Update a resource´s association using proper HTTP method

Question

I am using Spring Data REST, and I am trying to change a many-to-one relation using Spring REST, but I cannot get the proper http call to work.

My entity looks like this (basic calls like creation with POST etc. works fine):

{
  "id" : 70,
  "productId" : yyy,
  "productdiscount" : 10,
  "version" : 0,
  "description" : "xxx",
  "_links" : {
    "self" : {
      "href" : "http://localhost:8080/rest/rules/70"
    },
    "timedefinition" : {
      "href" : "http://localhost:8080/rest/rules/70/timedefinition"
    }
  }
}

I want to change the current timedefinition with say ID 1, to ID 2.

I have tried a lot of different call types with different errors. The below call doesn´t work.

 curl -X PUT -H "Content-Type: text/uri-list" -d 'http://localhost:8080/rest/timedefinition/1' http://localhost:8080/rest/rules/70/timedefinition

The following error is received:

Failed to convert from type java.lang.String to type domain.TimeDefinition for value '0'; nested exception is java.lang.IllegalArgumentException: Provided id of the wrong type for class domain.TimeDefinition. Expected: class java.lang.Integer, got class java.lang.Long

Another example is this:

curl -X PUT -H "Content-Type: application/json" -d '{"timedefinition": {"href" : "http://localhost:8080/rest/timedefinition/0", "rel" : "timedefinition"} }' http://localhost:8080/rest/rules/70/timedefinition

The error I get is:

"message":"Must send only 1 link to update a property reference that isn't a List or a Map."

The main reference at http://docs.spring.io/spring-data/rest/docs/2.0.1.RELEASE/reference/html/ doesn´t give much info on the topic above unfortunetely.

Any insights and explanations on the proper REST query format to update entities assocations are greatly appreciated!

Ok, so this query actually work: `curl -v -X PUT -H "Content-Type: text/uri-list" -d "http://localhost:8080/rest/timedefinition/0" http://localhost:8080/rest/rules/70/timedefinition`. But I had to change the ID in timedefinition from int to long. Is this perhaps a bug in spring data REST? — Daniel, Mar 19 '14 at 11:49

score 14 · Accepted Answer · answered Apr 11 '14 at 09:41

14

Correct answer is as my comment:

curl -v -X PUT -H "Content-Type: text/uri-list" -d "http://localhost:8080/rest/timedefinition/0" http://localhost:8080/rest/rules/70/timedefinition

answered Apr 11 '14 at 09:41

Daniel

744
8
24

score 3 · Answer 2 · answered Nov 09 '19 at 18:20

There was a bug in spring-data-rest-webmvc:3.2.0-RELEASE that would throw this error every time a PUT was sent to create 1-to-1 associations.

Changing spring-boot-starter-parent from 2.2.0.RELEASE to 2.2.1.RELEASE resolved this for me. You can also manually override spring-data-rest-webmvc to 3.2.1.RELEASE.

Related commit: https://github.com/spring-projects/spring-data-rest/commit/202a8aa30221b81dece183b74d81278deaf45321

score 1 · Answer 3 · answered May 21 '15 at 14:49

You can also use application/json content-type by embedding your relation into a _links node.

curl -X PUT -H "Content-Type: application/json" -d '{"_links":{"timedefinition": {"href" : "http://localhost:8080/rest/timedefinition/0", "rel" : "timedefinition"} }}' http://localhost:8080/rest/rules/70/timedefinition

Spring data REST: Update a resource´s association using proper HTTP method

3 Answers3