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26 lines
1.1 KiB
26 lines
1.1 KiB
2 years ago
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# gRPC C++ Interceptors Example
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The C++ Interceptors example shows how interceptors might be used with a simple key-value store. Note that the C++ Interception API is still experimental and subject to change.
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## Key Value Store
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The key-value store service is defined in [keyvaluestore.proto](https://github.com/grpc/grpc/blob/master/examples/protos/keyvaluestore.proto).It has a simple bidi streaming RPC where the request messages contain a key and the response messages contain a value.
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The example shows a very naive CachingInterceptor added on the client channel that caches the key-value pairs that it sees. If the client looks up a key present in the cache, the interceptor responds with its saved value and the server doesn't see the request for that key.
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On the server-side, a very simple logging interceptor is added that simply logs to stdout whenever a new RPC is received.
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## Running the example
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To run the server -
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```
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$ tools/bazel run examples/cpp/interceptors:server
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```
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To run the client (on a different terminal) -
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```
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$ tools/bazel run examples/cpp/interceptors:client
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```
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