Tapper v0.2.0 Tapper.TraceId

Generate, parse or format a top-level trace id.

The TraceId comprises the 128-bit Zipkin id, with a second component which is generated using a per-VM unique number sequence, to disambiguate parallel requests to the same server, so each request gets it’s own trace server, which prevents lifecycle confusion.

Summary

Types

int128()

t()

Functions

format(trace_id)

format a trace id for logs etc

generate a trace id

parse(s)

parse a trace id from a hex string, for propagation etc

to_hex(trace_id)

format a trace id to a hex string, for propagation etc

Types

int128()

int128() :: integer

t()

t() :: {int128, integer}

Functions

format(trace_id)

format(trace_id :: t) :: String.t

format a trace id for logs etc.

generate()

generate() :: t

generate a trace id

parse(s)

parse(String.t) :: {:ok, t} | :error

parse a trace id from a hex string, for propagation etc.

to_hex(trace_id)

to_hex(trace_id :: t) :: String.t

format a trace id to a hex string, for propagation etc.