CODEWITHSUNDEEP
javajsonspring-mvcjackson
31piy
31piy

Reputation: 23859

Restrict JSON attributes for @RequestBody

This may be a simple task, but I couldn't find a way to do it. Basically, I need to disallow some parameters at the time of using @RequestBody annotation in my controller.

Here is my model:

@Data
public class MyModel {
  private int id;
  private String name;
}

What I want to do is at the time of response, I want both of the properties to be serialized to JSON, but at the time of create or update, I prefer not to receive id as part of @RequestBody deserialization.

Right now, if I pass id in the JSON body, Spring initializes a MyModel object with its id set to the passed value.

Reason? The ID cannot be generated until the model is created, so the app shouldn't allow the ID to be set. On update, the ID needs to be passed in the URL itself e.g. (PUT /mymodels/43). This helps following the REST principles appropriately.

So, is there any way to achieve this functionality?

Update 1:

Right now, I am stuck with using a request wrapper. I created a new class MyModelRequestWrapper with only name as its property, and have used it with the @RequestBody annotation.

Upvotes: 2

Views: 2523

Answers (1)

Plog
Plog

Reputation: 9622

How you do this depends on what version of Jackson you are using. It's basically possible by a combination of the annotations @JsonIgnore and @JsonProperty on relevant fields/getters/setters.

Have a look at the answers here: Only using @JsonIgnore during serialization, but not deserialization

Upvotes: 2

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