36 lines
1008 B
Markdown
36 lines
1008 B
Markdown
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opentelemetry_grpcbox
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=====
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This [grpcbox](https://github.com/tsloughter/grpcbox) interceptor uses the
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[OpenTelemetry](http://opentelemetry.io/) API to create Spans for outgoing and
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incoming requests and propagates them as part of the gRPC metadata.
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### Server
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Configure as an interceptor:
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```erlang
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#{service_protos => [route_guide_pb],
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unary_interceptor => {otel_grpcbox_interceptor, unary}}
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```
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Or as a middleware in the chain interceptor:
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```erlang
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#{service_protos => [route_guide_pb],
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unary_interceptor =>
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grpcbox_chain_interceptor:unary([...,
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fun otel_grpcbox_interceptor:unary/4,
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...])}
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```
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### Client
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Example in `sys.config` for setting up a [client
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channel](https://grpc.io/docs/what-is-grpc/core-concepts/#channels):
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``` erlang
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{client, #{channels => [{default_channel, [{http, "localhost", 8080, []}],
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#{unary_interceptor => fun otel_grpcbox_interceptor:unary_client/7}}]}}
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```
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