Communicating between HTTP server/client pair

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Communicating between HTTP server/client pair

Postby snowfarthing » Thu Jan 10, 2013 11:19 pm

About three months ago, I was looking for work; about two months ago, I accepted a position; then, about a month ago, one of the companies I applied to sent me "homework" as part of their interview process. I'm supposed to write a Python REST interface for a basic database. Since I'm not seriously considering the company for employment, I decided to accept the assignment on my terms: I decided to do the assignment in Common Lisp. :twisted:

Since the homework uses all four REST verbs (GET, PUT, DELETE, and POST), I discovered that I had to use "s-http-server" to implement the server, and to use "s-http-client" to communicate with the server. It took a while for me to get used to it (and I have yet to figure out how to serve static pages)...and I have run into another hurdle that I haven't been able to figure out: how do I transfer content--particularly forms--between these two servers?

I tried setting "content" to the JSON object I was attempting to send to the server...but I couldn't figure out how to read that content from the server's side. While I could add the object to the URL, that doesn't seem like the best solution for passing JSON objects; besides, doing so just seems...wrong...somehow. Besides being something I ought to be able to do via forms, somehow, I sense that the solution shouldn't clutter up the URL with such things.

Thus, I wonder: what do I need to do, to pass a JSON object through the client, and then to extract it, once it gets to the server?

Perhaps I need to extend one or both of "s-http-server" and "s-http-client" to do this...if so, where should I begin?

Any help on this would be *greatly* appreciated!

(For the record, although I suppose I'd be "better off" doing this in Python, I'm glad I chose Common Lisp: I got to learn the magic of Quicklisp; while the libraries may leave a bit to be desired, I am nonetheless getting more familiar with what's available for Common Lisp, and how well they work; and I'm learning more about RESTful architectures than I otherwise would have learned, I think!)
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