JsonCallParameterUtil.java

/*
 * Copyright Hyperledger Besu.
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.ethereum.api.jsonrpc.internal.methods;

import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequestContext;
import org.hyperledger.besu.ethereum.api.jsonrpc.internal.exception.InvalidJsonRpcParameters;
import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.JsonCallParameter;

public class JsonCallParameterUtil {

  private JsonCallParameterUtil() {}

  public static JsonCallParameter validateAndGetCallParams(final JsonRpcRequestContext request) {
    final JsonCallParameter callParams = request.getRequiredParameter(0, JsonCallParameter.class);

    if (callParams.getGasPrice() != null
        && (callParams.getMaxFeePerGas().isPresent()
            || callParams.getMaxPriorityFeePerGas().isPresent())) {
      throw new InvalidJsonRpcParameters(
          "gasPrice cannot be used with maxFeePerGas or maxPriorityFeePerGas");
    }
    return callParams;
  }
}