Typescript

The framework supports Typescript out of the box, no additional configuration required. This means the cf-functions config file as well as any handler code or test files can all be .ts files.

A number of useful types related to CloudFront Functions have been included in this package. Check the index.js of this package for a list of bundled types.

Vanilla JS

If you prefer to use vanilla Javascript, this is also possible. Ensure that your tsconfig.json includes the allowJs option.

// tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    ...
  },
  ...
}