Modules

Modules are a core feature in Filtrera, designed to enable code reuse, separation of concerns, and clarity in your scripts. A module is a Filtrera script that exposes symbols such as functions and types via the `export` statement. Other scripts can then use the `import` statement to access these exported symbols, either directly or under a chosen namespace.

Using modules offers several benefits:

Organization: Group related logic, functions, and types together, making large scripts easier to maintain.
Reusability: Share business rules, utilities, or type definitions across multiple scripts without duplication.
Encapsulation: Publicly expose only what's necessary while keeping implementation details private to the module.
Safety: Prevent naming conflicts and unintended symbol overrides by importing symbols explicitly or into a local namespace.

Filtrera itself is intentionally minimal, but various runtimes provide access to a range of standard modules, such as "iterators", "maps", or "text". Which modules are available, and how to import custom modules (including path conventions), is determined by the host or runtime environment.

To learn more about how to author and consume modules, see the articles for the export statement and the import statement.

crypt	Cryptographic operations including HMAC signing and verification.
fake	Business and demo data — names, contact details, addresses, companies, products and lorem-style text — built on the random engine.
iterators	Contains functions and filters to work with iterators.
json	Contains functions and filters to work with JSON.
maps	Contains functions and filters to work with maps.
math	Contains functions and filters to work with math.
random	Type-directed pseudo-random generation of primitive values and pick lists, seeded or unseeded, as single values or infinite generators.
text	Contains functions and filters to work with texts.
xml	Contains functions and filters to read and write XML.