opencensus_elixir v0.5.0

Opencensus.SpanContext (opencensus_elixir v0.5.0)

Elixir convenience translation of :opencensus.span_ctx.

Most likely to be of use while writing unit tests, or packages that deal with spans. Less likely to be of use while writing application code.

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Functions

from(record)

Convert a span context.

hex_span_id(span_id)

Return the 16-digit hex representation of a span ID.

hex_trace_id(trace_id)

Return the 32-digit hex representation of a trace ID.

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from(record)

@spec from(:opencensus.span_ctx() | :undefined) :: %Opencensus.SpanContext{
  span_id: term(),
  trace_id: term(),
  trace_options: term(),
  tracestate: term()
}

Convert a span context.

iex> :opencensus.span_ctx()
:undefined
iex> :opencensus.span_ctx() |> Opencensus.SpanContext.from()
nil

iex> trace_id = 158162877550332985110351567058860353513
iex> span_id = 13736401818514315360
iex> span_ctx = {:span_ctx, trace_id, span_id, 1, :undefined}
iex> Opencensus.SpanContext.from(span_ctx)
%Opencensus.SpanContext{
  span_id: 13736401818514315360,
  trace_id: 158162877550332985110351567058860353513,
  trace_options: 1,
  tracestate: :undefined
}
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hex_span_id(span_id)

@spec hex_span_id(:undefined | integer()) :: String.t()

Return the 16-digit hex representation of a span ID.

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hex_trace_id(trace_id)

@spec hex_trace_id(:undefined | integer()) :: String.t()

Return the 32-digit hex representation of a trace ID.