Image signing and sizing for the Guardian
Note, this will not work without the correct salt value so only usuable within the Guardian.
Security: use this library server-side only.
A server-side JS/Typescript library to sign and format master images so that they can be served through our Fastly image service.
format(url: string, salt: string, profile: Profile)
url must be a valid master image URL.
salt must be kept secure. Do not use this library on the client-side.
Profile can include any properties supported by the Fastly image service. Docs