Context

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• Using Context
  • Adding a span to a context
  • Accessing a span from a Context
  • Contexts are immuutable, spans are not
  • Watch out for nil
• Deadlines and Spans
  • Finishing Spans on Deadlines
  • Do not Cancel contexts based on span finish
• When not to use context
  • Tracing Long-lived Objects
• Higher level APIs
  • Context-only APIs
  • StartSpanFromContext(ctx context.Context, operationName string, opts …StartSpanOption) (Span, context.Context)
  • Tag(context.Context)
  • Log(context.Context)