http://micronaut.io: Natively Cloud Native
  • Graeme Rocher 
/*
 * Copyright 2017-2020 original authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.micronaut.http.server.exceptions;

import com.fasterxml.jackson.core.JsonProcessingException;
import io.micronaut.http.HttpRequest;
import io.micronaut.http.HttpResponse;
import io.micronaut.http.HttpStatus;
import io.micronaut.http.MediaType;
import io.micronaut.http.MutableHttpResponse;
import io.micronaut.http.annotation.Produces;
import io.micronaut.http.hateoas.JsonError;
import io.micronaut.http.hateoas.Link;

import javax.inject.Singleton;


Default exception handler for JSON processing errors.

Author:Graeme Rocher
Since:1.0
/**
 * Default exception handler for JSON processing errors.
 *
 * @author Graeme Rocher
 * @since 1.0
 */
@Produces(MediaType.APPLICATION_JSON)
@Singleton
public class JsonExceptionHandler implements ExceptionHandler<JsonProcessingException, Object> {

    @Override
    public Object handle(HttpRequest request, JsonProcessingException exception) {
        // TODO: Send JSON back with detailed error
        MutableHttpResponse<Object> response = HttpResponse.status(HttpStatus.BAD_REQUEST, "Invalid JSON");
        JsonError body = new JsonError("Invalid JSON: " + exception.getMessage());
        body.link(Link.SELF, Link.of(request.getUri()));
        response.body(body);

        return response;
    }
}