Calling REST web services from a classic asp page

Question

I\'d like to start moving our application business layers into a collection of REST web services. However, most of our Intranet has been built using Classic ASP and most of

Answer 1

A number of the answers presented here appear to cover how ClassicASP can be used to consume web-services & REST calls.

In my opinion a tidier solution may be for your ClassicASP to just serve data in REST formats. Let your browser-based client code handle the 'mashup' if possible. You should be able to do this without incorporating any other ASP components.

So, here's how I would mockup shiny new REST support in ClassicASP:

1. provide a single ASP web page that acts as a landing pad
2. The landing pad will handle two parameters: verb and URL, plus a set of form contents
3. Use some kind of switch block inspect the URL and direct the verb (and form contents) to a relevant handler
4. The handler will then process the verb (PUT/POST/GET/DELETE) together with the form contents, returning a success/failure code plus data as appropriate.
5. Your landing pad will inspect the success/failure code and return the respective HTTP status plus any returned data

You would benefit from a support class that decodes/encodes the form data from/to JSON, since that will ease your client-side implementation (and potentially streamline the volume of data passed). See the conversation here at Any good libraries for parsing JSON in Classic ASP?

Lastly, at the client-side, provide a method that takes a Verb, Url and data payload. In the short-term the method will collate the parameters and forward them to your landing pad. In the longer term (once you switch away from Classic ASP) your method can send the data to the 'real' url.

Good luck...