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Getting Started Guide - Go

This is a simple application instrumented with OpenTelemetry Go. It demonstrates how to configure OpenTelemetry Go to send data to New Relic.

Requirements

Running the application

  1. Set the following environment variables to configure OpenTelemetry to send data to New Relic:

    export OTEL_SERVICE_NAME=getting-started-go
    export OTEL_RESOURCE_ATTRIBUTES=service.instance.id=123
    export OTEL_EXPORTER_OTLP_ENDPOINT=https://otlp.nr-data.net
    export OTEL_EXPORTER_OTLP_HEADERS=api-key=<your_license_key>
    export OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT=4095
    export OTEL_EXPORTER_OTLP_COMPRESSION=gzip
    export OTEL_EXPORTER_OTLP_PROTOCOL=http/protobuf
    export OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE=delta
    
  2. Run the application with the following command and open http://localhost:8080/fibonacci?n=1 in your web browser to ensure it is working.

    go run .
  3. Experiment with providing different values for n in the query string. Valid values are between 1 and 90. Values outside this range cause an error which will show up in New Relic.