Have you taken a look at net/url 
<https://docs.racket-lang.org/net/url.html?q=net%2Furl>? From there, I see:

   - make-http-connection 
   which can allow calls to get-pure-port/headers to stay connected if the 
   server allows it.
   - current-proxy-servers 
   and current-no-proxy-servers, which show they respect http_proxy, 
   https_proxy, and no_proxy.

There are also get-pure-port 
related functions that allow setting headers, which I think should let you 
set your cookies? For JSON, you can take look at the json 
<https://docs.racket-lang.org/json/index.html?q=json> docs if you're 
interested in converting the HTTP response bodies into a JSON expression. 
These expressions can then be treated like any other expression where you 
can map/filter/fold over lists and access map elements with hash table 

To find this stuff, I just searched for "http" and "json" using the ". . . 
search manuals . . ." box at the top right of the docs. The search looks 
through all of the Racket API as well as many user-contributed packages. It 
makes it very easy to find whatever you might be interested in.


On Saturday, May 16, 2020 at 7:45:08 AM UTC-10, fixpoint wrote:
> I'm on the search for a new programming language to learn, so I thought 
> I'd check out Racket, but I'm having a hard time trying to do a very common 
> task that would make Racket practical for my use at work:
>    - Make a series of HTTP requests to an API that returns JSON responses
>    - Reuse the HTTP connection to avoid creating new TCP connections for 
>    each request
>    - Honors the `http_proxy`, `https_proxy`, and `no_proxy` environment 
>    variables
>    - Maintains a "session" where cookies set by the server are sent back 
>    in subsequent requests
> My daily driver is Python, so I'm used to its `requests` library. Go and 
> Rust have similar libraries. While I don't mind piecing some of this 
> together, I'm struggling as a new user to figure out what libraries are 
> recommended and, more importantly, how to put them together to accomplish 
> the above points.
> Thank you.
> p.s. The Racket documentation is by far the best looking documentation 
> I've read in any language. It's quite amazing!

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