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# Enabling gRPC Logging
To enable logging for this library, set the logger for the underlying
[gRPC](https://github.com/grpc/grpc/tree/master/src/ruby) library. The logger
that you set may be a Ruby stdlib
[`Logger`](https://ruby-doc.org/current/stdlibs/logger/Logger.html) as
shown below, or a
[`Google::Cloud::Logging::Logger`](https://googleapis.dev/ruby/google-cloud-logging/latest)
that will write logs to [Stackdriver
Logging](https://cloud.google.com/logging/). See
[grpc/logconfig.rb](https://github.com/grpc/grpc/blob/master/src/ruby/lib/grpc/logconfig.rb)
and the gRPC
[spec_helper.rb](https://github.com/grpc/grpc/blob/master/src/ruby/spec/spec_helper.rb)
for additional information.
Configuring a Ruby stdlib logger:
```ruby
require "logger"
module MyLogger
LOGGER = Logger.new $stderr, level: Logger::WARN
def logger
LOGGER
end
end
# Define a gRPC module-level logger method before grpc/logconfig.rb loads.
module GRPC
extend MyLogger
end
```
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