Sign an unsign cookies with secret.

A single header represented as a key-value pair.

expires describes when a cookie will expire.

• `Session - nothing will be set
• `Max_age - Max-Age will be set with the number
• `Date - Expires will be set with a date

The value of a cookie is a tuple of (name, value)

make cookie creates a cookie with the key-value pair cookie

It will default to the following values:

• expires - `Session
• scope - None
• same_site - `Lax
• secure - false
• http_only - false

Note that if no value is given for scope, the browsers might use a default value. For instance, if the cookie is set from the response of http://example.com/users/login and does not specify a scope, some browsers will use /users as a scope. If you want the cookie to be valid for every endpoint of your application, you need to use "/" as the scope of your cookie.

of_set_cookie_header ?signed_with ?origin header creates a cookie from a Set-Cookie header header.

If the header is not a valid Set-Cookie header, None is returned.

to_set_cookie_header t creates an HTTP header for the cookie t.

to_cookie_header ?now ?elapsed ?scope cookies creates an HTTP header for the list of cookies cookies.

cookie_of_header ?signed_with key header returns the value of a the cookie with the key key in the header header.

If the cookie with the key key does not exist, or if the header is not a valid Cookie header, None will be returned.

cookies_of_header ?signed_with header returns the list of cookie values in the header header.

If the header is not a valid Cookie header, an empty list is returned.

cookie_of_headers ?signed_with key headers returns the value of a the cookie with the key key in the headers headers.

If the cookie with the key key does not exist, or if no header is not a valid Cookie header, None will be returned.

cookies_of_headers ?signed_with headers returns the list of cookie values in the headers headers.

If no header is not a valid Cookie header, an empty list is returned.

sexp_of_t t converts the cookie t to an s-expression.

pp formats the cookie t as an s-expression.