FME Transformers: 2024.1

Calculated Values
Related Transformers


Calculates a UUID (Universally Unique IDentifier) or ULID (Universally Unique Lexicographically Sortable Identifier) for each incoming feature, and adds it as an attribute.

UUIDs are expressed as a string consisting of 8 hexadecimal digits, followed by a hyphen, then three groups of 4 hexadecimal digits, each followed by a hyphen, then 12 hexadecimal digits. It is 36 bytes in size. UUIDs look like:


UUIDs may be optionally output with curly braces (GUIDs).

ULIDs are expressed as a string consisting of 26 characters. For more information, see Universally Unique Lexicographically Sortable Identifier. Note that FME does not use a “cryptographically secure” source of randomness for ULIDs and thus the output may not be appropriate for some purposes.

This transformer is similar to the GOIDGenerator, which generates a unique ID for each feature partially based on that feature's geometry.



Editing Transformer Parameters

Transformer parameters can be set by directly entering values, using expressions, or referencing other elements in the workspace such as attribute values or user parameters. Various editors and context menus are available to assist. To see what is available, click beside the applicable parameter.

For more information, see Transformer Parameter Menu Options.

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