io.dapr.internal.grpc.interceptors.DaprApiTokenInterceptor Maven / Gradle / Ivy
/*
* Copyright 2024 The Dapr 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
* 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.dapr.internal.grpc.interceptors;
import io.dapr.client.Headers;
import io.dapr.config.Properties;
import io.grpc.CallOptions;
import io.grpc.Channel;
import io.grpc.ClientCall;
import io.grpc.ClientInterceptor;
import io.grpc.ForwardingClientCall;
import io.grpc.Metadata;
import io.grpc.MethodDescriptor;
/**
* Class to be used as part of your service's client stub interceptor to include Dapr tokens.
*/
public class DaprApiTokenInterceptor implements ClientInterceptor {
@Override
public ClientCall interceptCall(
MethodDescriptor methodDescriptor,
CallOptions options,
Channel channel) {
ClientCall clientCall = channel.newCall(methodDescriptor, options);
return new ForwardingClientCall.SimpleForwardingClientCall<>(clientCall) {
@Override
public void start(final Listener responseListener, final Metadata metadata) {
String daprApiToken = Properties.API_TOKEN.get();
if (daprApiToken != null) {
metadata.put(Metadata.Key.of(Headers.DAPR_API_TOKEN, Metadata.ASCII_STRING_MARSHALLER), daprApiToken);
}
super.start(responseListener, metadata);
}
};
}
}