| # 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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| ``` |
| $ tools/bazel run examples/cpp/interceptors:server |
| ``` |
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| To run the client (on a different terminal) - |
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| ``` |
| $ tools/bazel run examples/cpp/interceptors:client |
| ``` |
