Transforms

Transforms can be applied to both local and remote modules. Transforms will be applied after creating an executable schema. Transforms can be used to mutate the schema of a module, e.g. to only mount the query operations of a remote schema.

Built-in Transforms

Themis exposes some transforms that you can choose to use.

Example:

const { SelectionFilter } = require('themis-graphql').transforms;

SelectionFilter

This transformation allows you to manipulate the selection of a query, e.g. to remove a subselection for a specific field.

new SelectionFilter(['article', 'content'], () => {
  return null;
})

DropFieldFilter

Allows to drop a specific field from a query completely.

new DropFieldFilter(['article', 'config'])