2.6 Stateless Web Interaction

2.6.1 Low Level

(require web-server/lang/abort-resume)

(call-with-serializable-current-continuation response-generator)

→ any

response-generator : (continuation? . -> . any)

Captures the current continuation in a serializable way and calls response-generator with it, returning the result.

2.6.2 High Level

(require web-server/lang/web)

(send/suspend/url response-generator) → request?

response-generator : (url? . -> . response/c)

Captures the current continuation. Serializes it and stuffs it into a URL. Calls response-generator with this URL and delivers the response to the client. If the URL is invoked the request is returned to this continuation.

(send/suspend response-generator) → request?

response-generator : (string? . -> . response/c)

Like send/suspend/url but with a string URL representation.

(send/suspend/hidden response-generator) → request?

response-generator : (url? xexpr/c . -> . response/c)

Captures the current continuation. Serializes it and stuffs it into a hidden INPUT form element. Calls response-generator with this URL and form field and delivers the response to the client. If the URL is invoked with form data containing the hidden form, the request is returned to this continuation.

(send/suspend/url/dispatch make-response) → any

make-response : (((request? . -> . any) . -> . url?) . -> . response/c)

Calls make-response with a function that, when called with a procedure from request? to any/c will generate a URL, that when invoked will call the function with the request? object and return the result to the caller of send/suspend/dispatch.

(send/suspend/dispatch make-response) → request?

make-response : (((request? . -> . any) . -> . string?) . -> . response/c)

Like send/suspend/url/dispatch but with a string URL representation.

(redirect/get) → request?

See web-server/servlet/web.