CODEWITHSUNDEEP
javajsonvalidationjerseyjackson
user4444533
user4444533

Reputation:

java/jersey/jackson - validate input JSON

I am writing a REST API with a Java/Jersey/Jackson stack. All JSON parsing and generating is done with Jackson. The REST layer is handled by Jersey. It will be embedded in a Grizzly container.

In my API, I accept JSON in my endpoints. For example:

@POST
public Response post(final SomeObject input) {
    return ...;
}

What is the best way to validate the input? There are certain things I would like to validate:

If possible, I would like to change my code as less as possible. That is, I prefer to annotate my classes, methods and parameters to integrate the validation.

Upvotes: 4

Views: 10473

Answers (2)

sol4me
sol4me

Reputation: 15698

You can also BeanValidationApi (javax.validation.constraints) and then annotate your fields with @NotNull,@Pattern, etc. Jersey also provides Bean Validation Support

Upvotes: 2

fge
fge

Reputation: 121692

You can use a JSON Schema.

And since you use Jackson, you can use my library which does exactly that.

However this means you'd need to change your logic so that you receive the JSON (as a JsonNode) instead of the serialized POJO, and only then serialize to your POJO.

Upvotes: 4

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