write-script-nativets

Native TypeScript scripts in Windmill run without imports—only fetch is available for HTTP requests. Export an async main function, use the RT namespace to access workspace resources and credentials, then run wmill script generate-metadata and wmill sync push to deploy.

Yes, fetch is the sole HTTP client available in native TypeScript scripts. It works directly without imports, making it ideal for lightweight data-fetching utilities that consume workspace resources in flows.

Resource values pass through Windmill's RT namespace, which provides access to workspace credentials and config without explicit imports. Reference them in your exported async main function parameters.

Place your script with an exported async main function in the scripts/ directory, run wmill script generate-metadata to create frontmatter metadata, then execute wmill sync push to deploy it to Windmill.

Native scripts suit lightweight automation tasks—data fetching, resource-driven flows, and preprocessing—where external dependencies add overhead. Use them when fetch and built-in TypeScript features satisfy your needs.

Yes, native TypeScript execution applies to both flows and preprocessor tasks. Each runs with fetch-only HTTP access and RT namespace resource bindings, enforcing the exported async main function pattern.