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span_id

Span Identifiers

Functions

is_valid(span_id)

Is the span_id valid

Checks the span_id argument to see if it is a valid span id. A legal span id is one of:

  • An array of integers in the range of [0..=255] of length 8
  • A binary 8 byte value
  • An array of 8 int values
  • A 16-byte hex-encoded string
  • Regardless of representation, the value must not be all zeroes

Returns a record when the representation is well-formed of the form:

{
"kind": "string"|"binary"|"array", # Depends on input
"valid": true|false, # True if well-formed and valid
"value": "<span_id>" # Representation depends on `kind`
}

Returns an empty record {} when the representation not well-formed