Files - Collabase

An action that produces a file, such as a PDF, an export or a picture, writes it with context.files. Later steps get a reference to the file instead of a copy of its content.

run: async (context) => {
  const pdf = await renderInvoice(context.auth, context.propsValue.invoiceId);
  const file = await context.files.write({ fileName: "invoice.pdf", data: pdf });
  return { file };
},

write takes a name and a Buffer or a Readable, and returns a string. Return that string in the result, and a later step that has a file input can use it.

Where files live

Files are stored in the storage of the automation workspace. A file belongs to the workspace that wrote it: the id of a file is useless in another workspace.

Limits

Limit	Value
Size of one file	25 MB

A larger file is refused with an error. Compress it, or send it to the other system from inside the action instead of passing it on.

Last modified on October 26, 2026