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/*
* Copyright © 2012 The Feign Authors ([email protected])
*
* 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
*
* http://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 feign.graphql;
import feign.Experimental;
import feign.RequestTemplate;
import feign.codec.EncodeException;
import feign.codec.Encoder;
import java.lang.reflect.Type;
import java.util.LinkedHashMap;
@Experimental
public class GraphqlEncoder implements Encoder {
private final Encoder delegate;
private final GraphqlContract contract;
public GraphqlEncoder(Encoder delegate, GraphqlContract contract) {
this.delegate = delegate;
this.contract = contract;
}
@Override
public void encode(Object object, Type bodyType, RequestTemplate template)
throws EncodeException {
var meta = contract.lookupMetadata(template);
if (meta == null) {
delegate.encode(object, bodyType, template);
return;
}
var graphqlBody = new LinkedHashMap<String, Object>();
graphqlBody.put("query", meta.query);
if (object != null && meta.variableName != null) {
var variables = new LinkedHashMap<String, Object>();
variables.put(meta.variableName, object);
graphqlBody.put("variables", variables);
}
delegate.encode(graphqlBody, MAP_STRING_WILDCARD, template);
}
}