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/*
 * Copyright (C) 2022 Temporal Technologies, Inc. All Rights Reserved.
 *
 * Copyright (C) 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Modifications copyright (C) 2017 Uber Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this material 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 io.temporal.authorization;

/**
 * Supplies tokens that will be sent to the Temporal server to perform authorization.
 * Implementations have to be thread-safe.
 *
 * The default JWT ClaimMapper expects authorization tokens to be in the following format:
 *
 * 
{@code Bearer }
 *
 * {@code } Must be the Base64 url-encoded value of the token.
 *
 * @see Format of
 *     JWT
 */
public interface AuthorizationTokenSupplier {
  /**
   * @return token to be passed in authorization header
   */
  String supply();
}